Search results for ""Torque""

The pace at which technology progresses within the motor industry can be incredibly fast. What may have seemed an almost insurmountable problem in the late 80s and early 90s and therefore a major achievement when resolved, would now seem a minor inconvenience due to the advances made in component technology. Aston Martin Engine Development thoroughly details the design and development of Aston Martin engines including the 580X Vantage, the Virage, and the V8 Coupe. In particular it focusses on the twin supercharged 32 valve Vantage engine - an engine which set new standards, being the most powerful production car engine in the world at the time of its release in 1992. Illustrated with photographs from that time and including power and torque curves, this book provides a unique look into a period of Aston's history, written by one of the key men involved in making it happen. It gives an insight into life at the AM factory at Newport Pagnell; an understanding of the benefits of Supercharging at the time of manufacture; and a historic record of engine design, development and production that would otherwise have been lost to time.Aston Martin Engine Development will appeal to Aston Martin owners and enthusiasts and to anyone else with an interest in engines and high-performance cars.

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This book presents a collection of problems in spin wave excitations with their detailed solutions. Each chapter briefly introduces the important concepts, encouraging the reader to further explore the physics of spin wave excitations and the engineering of spin wave devices by working through the accompanying problem sets. The initial chapters cover the fundamental aspects of magnetization, with its origins in quantum mechanics, followed by chapters on spin wave excitations, such as the magnetostatic approximation, Walker's equation, the spin wave manifold in the three different excitation geometries of forward volume, backward volume and surface waves, and the dispersion of spin waves. The latter chapters focus on the practical aspects of spin waves and spin wave optical devices and use the problem sets to introduce concepts such as variational analysis and coupled mode theory. Finally, for the more advanced reader, the book covers nonlinear interactions and topics such as spin wave quantization, spin torque excitations, and the inverse Doppler effect. The topics range in difficulty from elementary to advanced. All problems are solved in detail and the reader is encouraged to develop an understanding of spin wave excitations and spin wave devices while also strengthening their mathematical, analytical, and numerical programming skills.

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Expose Your Students to the Elegant World of Physics in an Enticing WayPhysics from Planet Earth - An Introduction to Mechanics provides a one-semester, calculus-based introduction to classical mechanics for first-year undergraduate students studying physics, chemistry, astronomy, or engineering. Developed from classroom-tested materials refined and updated for over ten years at Colgate University, the book guides students on a journey beyond standard approaches that use blocks, projectiles, and inclined planes to grander themes involving interplanetary travel, exoplanets, asteroid collisions, and dark matter.Beginning students are often bewildered by the rapid-fire presentation of physical concepts, mathematics, and problem-solving strategies in traditional introductory textbooks. In contrast, this text: Introduces the three conservation laws (momentum, energy, and angular momentum) as fundamental laws of nature from which secondary concepts, such as force and torque, are derived Organizes topics around the conservation laws, avoiding the typical "math overload" that confronts students at the start of standard courses Motivates and illustrates many topics through real, contemporary applications in astronomy, planetary science, and space travel After reviewing the basic mathematical tools needed to study mechanics, the text addresses the conservation of momentum and applications, such as gravity-assisted space travel and rocket propulsion. It next discusses Newton’s Laws and numerous space- and astronomy-based applications. The text then presents evidence for a second conservation principle, energy, which allows us to describe motion as a function of position rather than time. The book also explores the conservation of angular momentum and a variety of applications, including pulsars, orbital eccentricity, and gyroscopes. The text concludes with a discussion of dark matter, dark energy, and the ultimate fate of the universe.

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Describes the general principles and current research into Model Predictive Control (MPC); the most up-to-date control method for power converters and drives The book starts with an introduction to the subject before the first chapter on classical control methods for power converters and drives. This covers classical converter control methods and classical electrical drives control methods. The next chapter on Model predictive control first looks at predictive control methods for power converters and drives and presents the basic principles of MPC. It then looks at MPC for power electronics and drives. The third chapter is on predictive control applied to power converters. It discusses: control of a three-phase inverter; control of a neutral point clamped inverter; control of an active front end rectifier, and; control of a matrix converter. In the middle of the book there is Chapter four - Predictive control applied to motor drives. This section analyses predictive torque control of industrial machines and predictive control of permanent magnet synchronous motors. Design and implementation issues of model predictive control is the subject of the final chapter. The following topics are described in detail: cost function selection; weighting factors design; delay compensation; effect of model errors, and prediction of future references. While there are hundreds of books teaching control of electrical energy using pulse width modulation, this will be the very first book published in this new topic. Unique in presenting a completely new theoretic solution to control electric power in a simple way Discusses the application of predictive control in motor drives, with several examples and case studies Matlab is included on a complementary website so the reader can run their own simulations

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In one complete volume, this essential reference presents an in-depth overview of the theoretical principles and techniques of electrical machine design. This timely new edition offers up-to-date theory and guidelines for the design of electrical machines, taking into account recent advances in permanent magnet machines as well as synchronous reluctance machines. New coverage includes: Brand new material on the ecological impact of the motors, covering the eco-design principles of rotating electrical machines An expanded section on the design of permanent magnet synchronous machines, now reporting on the design of tooth-coil, high-torque permanent magnet machines and their properties Large updates and new material on synchronous reluctance machines, air-gap inductance, losses in and resistivity of permanent magnets (PM), operating point of loaded PM circuit, PM machine design, and minimizing the losses in electrical machines> End-of-chapter exercises and new direct design examples with methods and solutions to real design problems> A supplementary website hosts two machine design examples created with MATHCAD: rotor surface magnet permanent magnet machine and squirrel cage induction machine calculations. Also a MATLAB code for optimizing the design of an induction motor is provided Outlining a step-by-step sequence of machine design, this book enables electrical machine designers to design rotating electrical machines. With a thorough treatment of all existing and emerging technologies in the field, it is a useful manual for professionals working in the diagnosis of electrical machines and drives. A rigorous introduction to the theoretical principles and techniques makes the book invaluable to senior electrical engineering students, postgraduates, researchers and university lecturers involved in electrical drives technology and electromechanical energy conversion.

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There is a large and growing number of excellent books on physics and sports. While these books are well written, educational, and often entertaining, they are simply not textbooks. Physics concepts such as: force, velocity, and torque, come into the discussion. Interesting facts are given, and occasionally a formula is applied. However, the focus is typically on conveying interesting physics related facts about a particular sport, rather than developing a general appreciation and facility for scientific reasoning. The Physics of Sports is intended as a textbook for a 1 semester or a 1-2 quarter undergraduate course, for students - not necessarily intending to major in Physical Science, Engineering, or a related field. With this course, it is hoped that a student's natural interest in athletics and the direct relevance to concrete material will bridge the gap for students, turned off by the seemingly abstract stuff covered in many undergraduate physics courses. The discussion being completely centered around real life examples, allows students to understand sports by talking about Physics.McGraw-Hill's Connect, is also available as an optional, add on item. Connect is the only integrated learning system that empowers students by continuously adapting to deliver precisely what they need, when they need it, how they need it, so that class time is more effective. Connect allows the professor to assign homework, quizzes, and tests easily and automatically grades and records the scores of the student's work. Problems are randomized to prevent sharing of answers an may also have a "multi-step solution" which helps move the students' learning along if they experience difficulty.

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Breaking the mold of existing calculus textbooks, Calculus in Context draws students into the subject in two new ways. Part I develops the mathematical preliminaries (including geometry, trigonometry, algebra, and coordinate geometry) within the historical frame of the ancient Greeks and the heliocentric revolution in astronomy. Part II starts with comprehensive and modern treatments of the fundamentals of both differential and integral calculus, then turns to a wide-ranging discussion of applications. Students will learn that core ideas of calculus are central to concepts such as acceleration, force, momentum, torque, inertia, and the properties of lenses. Classroom-tested at Notre Dame University, this textbook is suitable for students of wide-ranging backgrounds because it engages its subject at several levels and offers ample and flexible problem set options for instructors. Parts I and II are both supplemented by expansive Problems and Projects segments. Topics covered in the book include: * the basics of geometry, trigonometry, algebra, and coordinate geometry and the historical, scientific agenda that drove their development* a brief, introductory calculus from the works of Newton and Leibniz* a modern development of the essentials of differential and integral calculus* the analysis of specific, relatable applications, such as the arc of the George Washington Bridge; the dome of the Pantheon; the optics of a telescope; the dynamics of a bullet; the geometry of the pseudosphere; the motion of a planet in orbit; and the momentum of an object in free fall. Calculus in Context is a compelling exploration-for students and instructors alike-of a discipline that is both rich in conceptual beauty and broad in its applied relevance.

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In the monograph, a number of problems of scientific and technical importance are introduced and discussed, which are of great interest, and can find widespread application in the circles of engineers and researchers, as well as graduate and post-graduate students engaged in investigation, optimisation and management of electromechanical systems. The theoretical and practical results presented in the work have applied significance for investigating, optimising, revealing the regularities of changing the operation modes, establishing the technological factors and power dependencies, controlling the operating state of the elastic transmission links of the electromechanical system, and, based on them, developing a control system for the diagnosis tool of the system's operating state and increasing the power consumption efficiency. The methods introduced in the monograph differ from those developed by other well-known authors in that the author has succeeded in revealing the relationship of technological and energetic parameters. Taking into consideration the variety of the technological load, mechanisms and schemes, the author has proposed and implemented new complex approaches to making optimal decisions on the problem, considering them in the solution of diverse problems aimed at increasing the efficiency of the ore-grinding technological process. In Chapter 1 of the monograph, the principles of increasing the control efficiency of the ore-grinding technological process by assessing the power-saving possibilities for the consumed energy have been considered. In Chapter 2, the operation modes of the ore mill have been investigated, for which models for investigating the change in the moment of the active load and the mill -- motor electromechanical system have been developed. A system of criteria for studying the changes in the grinding degree, time, and the number of mills used has been obtained, and the condition for the stability of the gravity centre of the mill active load, as well as the frequency areas of interest for assessing the state of the system have been revealed. Chapter 3 is devoted to the development of the imitation model for investigating the dynamic processes of the electrical drive systems ensuring the ore mill operation, which reveals the regularities of changes in the electromagnetic torque and dynamic load at different characteristics of changes in the resistive torque created by the mill, and at different values of hardness of the drive unit. In Chapter 4, the possibilities of identifying and preventing abnormal operating modes of synchronous electrical drive of the ore-grinding mill are considered. In Chapter 5, the optimisation problem is formulated through the analysis of the grinding control strategy and energy-saving requirements. The necessity of forming a loss matrix to determine the optimisation criteria and controlled parameters is substantiated. In Chapter 6, the automated diagnosis and control systems are proposed that provide wide control possibilities, and, in the last chapter, method of rationing the specific consumption of electricity by the technological process of grinding is presented.

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Richard Hugo visited places and wrote about them. He wrote about towns: White Center and La Push in Washington; Wallace and Cataldo in Idaho; Milltown, Philipsburg, and Butte in Montana. Often his visits lasted little more than an afternoon, and his knowledge of the towns was confined to what he heard in bars and diners. From these snippets, he crafted poems. His attention to the actual places could be scant, but Hugo’s poems resonate more deeply than travelogues or feature stories; they capture the torque between temperament and terrain that is so vital in any consideration of place. The poems bring alive some hidden aspect to each town and play off the traditional myths that an easterner might have of the West: that it is a place of restoration and healing, a spa where people from the East come to recover from ailments; that it is a place to reinvent oneself, a region of wide open, unpolluted country still to settle. Hugo steers us, as readers, to eye level. How we settle into and take on qualities of the tracts of earth that we occupy -- this is Hugo’s inquiry. Part travelogue, part memoir, part literary scholarship, The Car That Brought You Here Still Runs traces the journey of Frances McCue and photographer Mary Randlett to the towns that inspired many of Richard Hugo’s poems. Returning forty years after Hugo visited these places, and bringing with her a deep knowledge of Hugo and her own poetic sensibility, McCue maps Hugo’s poems back onto the places that triggered them. Together with twenty-three poems by Hugo, McCue’s essays and Randlett’s photographs offer a fresh view of Hugo’s Northwest. Watch the book trailer: https://www.youtube.com/watch?v=J8_W1FZn06w

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"[Wolff's poems] are stylistic and tonal shapeshifters. Hip, contemplative, and dark and resistant to the hunky-dory, the New Agey, and the prescriptive, they're unnerving, funny, and occasionally subversive."-Bookforum Poet, novelist, and Fence Books founder Rebecca Wolff's internal monologue made external in poetry is uncanny. Her musical and darkly funny fourth collection, One Morning-, spans language, culture, art history, love, passion, grief, consumerism, environmental devastation, and the ekphrastic experience of pop and high culture. She experiments with torque, energy, narrative-two steps ahead of herself with the reader on her heels. From "Today Is a Good Day to Fly (Life Begins at)": I'm really digging this blue sky after so much rain with my regular menstrual cycle my Def Jam progesterone cream the blow-in (in my pocket) (ripped out) from in-flight music magazine "touching cloth" like the Romantics do. Insert jitney. Rebecca Wolff is the author of four collections of poetry, one novel, and numerous pieces of occasional prose. Her first book, Manderley, was selected for the National Poetry Series by Robert Pinsky. Her second, Figment, was selected for the Barnard Women Poets Prize by Claudia Rankine and Eavan Boland. Her third, The King, was published by W. W. Norton in 2009. Her novel The Beginners was published by Riverhead in 2011. She is a graduate of the Iowa Writers Workshop and has been a fellow at the MacDowell Colony and the Millay Colony for the Arts. In 1998, Wolff founded the influential literary journal Fence; in 2001 she founded Fence Books and launched The Constant Critic website. Wolff lives in Hudson, New York, and is currently a fellow at the New York State Writers Institute at the University at Albany.

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This highly practical and useful book covers brilliant techniques that take the guesswork out of performance modification. Using just some low-cost tools, you can easily measure the flow restriction of your car's intake and exhaust. It's like having a huge flow-bench always available. By making some simple on-road measurements, you can plot the shape of the engine's power and torque curves - no dyno needed. This allows you to not only see if performance modifications to the engine are improving power, but also see where in the rev range those changes are occurring. Assess the worth of cams, a larger turbo, changed boost control or altered engine management mapping. But the book doesn't stop there - it also shows you how to measure your car's aerodynamics, seeing if at speed your car is developing lift or downforce. Want to make a rear wing work well? Test the angle at which downforce is greatest. You can also test the aerodynamic airflow through oil coolers, intercoolers and radiators. Interested in improving your suspension? By using a low-cost app and a smartphone, you can accurately measure suspension behaviour. If you want a practical, hands-on book that will immediately save you money, show where modifications are most needed, and can be used to assess performance outcomes, this is the book for you.

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Introducing a new edition of the popular reference on machine analysis Now in a fully revised and expanded edition, this widely used reference on machine analysis boasts many changes designed to address the varied needs of engineers in the electric machinery, electric drives, and electric power industries. The authors draw on their own extensive research efforts, bringing all topics up to date and outlining a variety of new approaches they have developed over the past decade. Focusing on reference frame theory that has been at the core of this work since the first edition, this volume goes a step further, introducing new material relevant to machine design along with numerous techniques for making the derivation of equations more direct and easy to use. Coverage includes: Completely new chapters on winding functions and machine design that add a significant dimension not found in any other text A new formulation of machine equations for improving analysis and modeling of machines coupled to power electronic circuits Simplified techniques throughout, from the derivation of torque equations and synchronous machine analysis to the analysis of unbalanced operation A unique generalized approach to machine parameters identification A first-rate resource for engineers wishing to master cutting-edge techniques for machine analysis, Analysis of Electric Machinery and Drive Systems is also a highly useful guide for students in the field.

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Complete bicycle maintenance, Now in its 23rd year of publication, The Bike Book continues to be a bestseller. Compiled by a new author, this seventh edition is a major update to include all new developments in the cycling world along with a thorough check and revision of all existing material. New photography together with a refreshed page design offer the reader a user-friendly and contemporary manual – but still with the clear step-by-step approach for which Haynes is famous., Choosing a bike: different types of bike, correct sizing and setting up., Routine maintenance and repair: lubrication, adjustment, cleaning, repairing punctures, tyre care, chains, cables and brake pads., Braking systems: rim and disc brakes., Drive train: chains, cables, derailleurs, sprockets and cassettes, chainsets, bottom brackets, hub gears, gear shifters., Contact points: saddles, seat posts, bars and stems, pedals, toe clips, straps and clipless pedals., Wheels: adjustable-cone hubs, sealed-bearing hubs, spoke replacement and truing., Frames, forks, steering and suspension: frame materials and design, suspension fork strip and set-up, headset strip, adjustment and replacement, full-suspension bearing replacement., Safety, security and accessories: mudguards, racks, panniers, computers, bells, seatpost bags., Appendix: gear ratios, torque settings, chain types, tyre and rim combinations, Shimano, Sram and Campagnolo compatability, fault-finding., Author: James Witts is a sports journalist who edited the UK's biggest and best-selling multisport magazine, 220 Triathlon, transforming it from a loss-making publication into one of Immediate Media's most profitable titles.

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The First Maker-Friendly Guide to Electric Motors! Makers can do amazing things with motors. Yes, they’re more complicated than some other circuit elements, but with this book, you can completely master them. Once you do, incredible new projects become possible. Unlike other books, Motors for Makers is 100% focused on what you can do. Not theory. Making. First, Matthew Scarpino explains how electric motors work and what you need to know about each major type: stepper, servo, induction, and linear motors. Next, he presents detailed instructions and working code for interfacing with and controlling servomotors with Arduino Mega, Raspberry Pi, and BeagleBone Black. All source code and design files are available for you to download from motorsformakers.com. From start to finish, you’ll learn through practical examples, crystal-clear explanations, and photos. If you’ve ever dreamed of what you could do with electric motors, stop dreaming...and start making! Understand why electric motors are so versatile and how they work Choose the right motor for any project Build the circuits needed to control each type of motor Program motor control with Arduino Mega, Raspberry Pi, or BeagleBone Black Use gearmotors to get the right amount of torque Use linear motors to improve speed and precision Design a fully functional electronic speed control (ESC) circuit Design your own quadcopter Discover how electric motors work in modern electric vehicles--with a fascinating inside look at Tesla’s patents for motor design and control!

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Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product.Get Your Move On!In Making Things Move: DIY Mechanisms for Inventors, Hobbyists, and Artists, you'll learn how to successfully build moving mechanisms through non-technical explanations, examples, and do-it-yourself projects--from kinetic art installations to creative toys to energy-harvesting devices. Photographs, illustrations, screen shots, and images of 3D models are included for each project. This unique resource emphasizes using off-the-shelf components, readily available materials, and accessible fabrication techniques. Simple projects give you hands-on practice applying the skills covered in each chapter, and more complex projects at the end of the book incorporate topics from multiple chapters. Turn your imaginative ideas into reality with help from this practical, inventive guide. Discover how to: Find and select materials Fasten and join parts Measure force, friction, and torque Understand mechanical and electrical power, work, and energy Create and control motion Work with bearings, couplers, gears, screws, and springs Combine simple machines for work and fun Projects include: Rube Goldberg breakfast machine Mousetrap powered car DIY motor with magnet wire Motor direction and speed control Designing and fabricating spur gears Animated creations in paper An interactive rotating platform Small vertical axis wind turbine SADbot: the seasonally affected drawing robot Make Great Stuff!TAB, an imprint of McGraw-Hill Professional, is a leading publisher of DIY technology books for makers, hackers, and electronics hobbyists.

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Diffractive Nanophotonics demonstrates the utility of the well-established methods of diffractive computer optics in solving nanophotonics tasks. It is concerned with peculiar properties of laser light diffraction by microoptics elements with nanoscale features and light confinement in subwavelength space regions. Written by recognized experts in this field, the book covers in detail a wide variety of advanced methods for the rigorous simulation of light diffraction. The authors apply their expertise to addressing cutting-edge problems in nanophotonics.Chapters consider the basic equations of diffractive nanophotonics and related transformations and numerical methods for solving diffraction problems under strict electromagnetic theory. They examine the diffraction of light on two-dimensional microscopic objects of arbitrary shape and present a numerical method for solving the problem of diffraction on periodic diffractive micro- and nanostructures. This method is used in modern trends in nanophotonics, such as plasmonics, metamaterials, and nanometrology. The book describes the simulation of electromagnetic waves in nanophotonic devices and discusses two methods of calculating the spatial modes of microstructured photonic crystal fibres—a relatively new class of optical fibres with the properties of photonic crystals.The book explains the theory of paraxial and non-paraxial laser beams with axial symmetry and an orbital angular momentum—called vortex beams—which are used for optical trapping and rotating micro- and nanoparticles in a ring in the cross-sectional plane of the beam. The final chapter discusses methods for calculating the force and torque exerted by the electromagnetic field focused onto the microparticle of arbitrary form, whose dimensions are comparable with the wavelength of light.

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Discover the analytical foundations of electric machine, power electronics, electric drives, and electric power systems In Introduction to the Analysis of Electromechanical Systems, an accomplished team of engineers delivers an accessible and robust analysis of fundamental topics in electrical systems and electrical machine modeling oriented to their control with power converters. The book begins with an introduction to the electromagnetic variables in rotatory and stationary reference frames before moving onto descriptions of electric machines. The authors discuss direct current, round-rotor permanent-magnet alternating current, and induction machines, as well as brushless direct current and induction motor drives. Synchronous generators and various other aspects of electric power system engineering are covered as well, showing readers how to describe the behavior of electromagnetic variables and how to approach their control with modern power converters. Introduction to the Analysis of Electromechanical Systems presents analysis techniques at an introductory level and at sufficient detail to be useful as a prerequisite for higher level courses. It also offers supplementary materials in the form of online animations and videos to illustrate the concepts contained within. Readers will also enjoy: A thorough introduction to basic system analysis, including phasor analysis, power calculations, elementary magnetic circuits, stationary coupled circuits, and two- and three-phase systems Comprehensive explorations of the basics of electric machine analysis and power electronics, including switching-circuit fundamentals, conversion, and electromagnetic force and torque Practical discussions of power systems, including three-phase transformer connections, synchronous generators, reactive power and power factor correction, and discussions of transient stability Perfect for researchers and industry professionals in the area of power and electric drives, Introduction to the Analysis of Electromechanical Systems will also earn its place in the libraries of senior undergraduate and graduate students and professors in these fields.

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"[Wolff's poems] are stylistic and tonal shapeshifters. Hip, contemplative, and dark and resistant to the hunky-dory, the New Agey, and the prescriptive, they're unnerving, funny, and occasionally subversive."-Bookforum Poet, novelist, and Fence Books founder Rebecca Wolff's internal monologue made external in poetry is uncanny. Her musical and darkly funny fourth collection, One Morning-, spans language, culture, art history, love, passion, grief, consumerism, environmental devastation, and the ekphrastic experience of pop and high culture. She experiments with torque, energy, narrative-two steps ahead of herself with the reader on her heels. From "Today Is a Good Day to Fly (Life Begins at)": I'm really digging this blue sky after so much rain with my regular menstrual cycle my Def Jam progesterone cream the blow-in (in my pocket) (ripped out) from in-flight music magazine "touching cloth" like the Romantics do. Insert jitney. Rebecca Wolff is the author of four collections of poetry, one novel, and numerous pieces of occasional prose. Her first book, Manderley, was selected for the National Poetry Series by Robert Pinsky. Her second, Figment, was selected for the Barnard Women Poets Prize by Claudia Rankine and Eavan Boland. Her third, The King, was published by W. W. Norton in 2009. Her novel The Beginners was published by Riverhead in 2011. She is a graduate of the Iowa Writers Workshop and has been a fellow at the MacDowell Colony and the Millay Colony for the Arts. In 1998, Wolff founded the influential literary journal Fence; in 2001 she founded Fence Books and launched The Constant Critic website. Wolff lives in Hudson, New York, and is currently a fellow at the New York State Writers Institute at the University at Albany.

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David Opdyke's massive collage This Land (as elucidated in this book by award-winning author Lawrence Weschler) presents a slow-burning satire of the American Dream as it blunders into the reality of climate change. This Land is an epic mural fashioned by New York artist David Opdyke out of vintage American postcards which he then treated with disconcerting painted interventions. What at first reads as a panoramic bird's-eye view of an idyllic alpine valley reveals itself, upon closer examination, to be an array of connected scenes and vignettes. Across more than five hundred postcards, each one portraying a distinct slice of idealized Americana (town squares, mountain highways, main streets and county seats), Opdyke's acerbic, emotionally jarring alterations gradually become evident. In this prophetic refashioning, forests are aflame, tornadoes torque from one card into the next, a steamboat gets swallowed up whole by some sort of new megafauna, frogs fall like Biblical hail from the sky. The human responses form a cacophony of desires and demands, panic and denial. Biplanes trail banners urging Repent Now!, others insist Legislative Action Would Be Premature, while still others advertise seats on an actual Ark. The book This Land affords readers a closer and closer viewing of Opdyke’s devastatingly sardonic take on our impending ecological future, one in turn enlivened by Lawrence Weschler's vividly sly blend of artist profile and critical interpretation. Featuring introductory essays providing background on the artist and the project as a whole, This Land also divides the sprawling mural into eight sections to allow for a more intimate viewing. Interspersed among the detailed visual sections are insightful thematic essays by Lawrence Weschler and an afterword that serves as a stirring call to action by civil rights attorney Maya Wiley. Additionally, the book's jacket is printed on both sides, folding out to reveal the work in its full grandeur.

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Clear presentation of a new control process applied to induction machine (IM), surface mounted permanent magnet synchronous motor (SMPM-SM) and interior permanent magnet synchronous motor (IPM-SM) Direct Eigen Control for Induction Machines and Synchronous Motors provides a clear and consise explanation of a new method in alternating current (AC) motor control. Unlike similar books on the market, it does not present various control algorithms for each type of AC motor but explains one method designed to control all AC motor types: Induction Machine (IM), Surface Mounted Permanent Magnet Synchronous Motor (SMPM-SM) (i.e. Brushless) and Interior Permanent Magnet Synchronous Motor (IPM-SM). This totally new control method can be used not only for AC motor control but also to control input filter current and voltage of an inverter feeding an AC motor. Accessible and clear, describes a new fast type of motor control applied to induction machine (IM), surface mounted permanent magnet synchronous motor (SM-PMSM) and interior permanent magnet synchronous motor (I-PMSM) with various examples Summarizes a method that supersedes the two known direct control solutions – Direct Self Control and Direct Torque Control – to be used for AC motor control and to control input filter current and voltage of an inverter feeding an AC motor Presents comprehensive simulations that are easy for the reader to reproduce on a computer. A control program is hosted on a companion website This book is straight-forward with clear mathematical description. It presents simulations in a way that is easy to understand and to reproduce on a computer, whilst omitting details of practical hardware implementation of control, in order for the main theory to take focus. The book remains concise by leaving out description of sensorless controls for all motor types. The sections on “Control Process”, “Real Time Implementation” and “Kalman Filter Observer and Prediction” in the introductory chapters explain how to practically implement, in real time, the discretized control with all three types of AC motors. In order, this book describes induction machine, SMPM-SM, IPM-SM, and, application to LC filter limitations. The appendixes present: PWM vector calculations; transfer matrix calculation; transfer matrix inversion; Eigen state space vector calculation; and, transition and command matrix calculation. Essential reading for Researchers in the field of drive control; graduate and post-graduate students studying electric machines; electric engineers in the field of railways, electric cars, plane surface control, military applications. The approach is also valuable for Engineers in the field of machine tools, robots and rolling mills.

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This book aims to offer a thorough study and reference textbook on electrical machines and drives. The basic idea is to start from the pure electromagnetic principles to derive the equivalent circuits and steady-state equations of the most common electrical machines (in the first parts). Although the book mainly concentrates on rotating field machines, the first two chapters are devoted to transformers and DC commutator machines. The chapter on transformers is included as an introduction to induction and synchronous machines, their electromagnetics and equivalent circuits. Chapters three and four offer an in-depth study of induction and synchronous machines, respectively. Starting from their electromagnetics, steady-state equations and equivalent circuits are derived, from which their basic properties can be deduced. The second part discusses the main power-electronic supplies for electrical drives, for example rectifiers, choppers, cycloconverters and inverters. Much attention is paid to PWM techniques for inverters and the resulting harmonic content in the output waveform. In the third part, electrical drives are discussed, combining the traditional (rotating field and DC commutator) electrical machines treated in the first part and the power electronics of part two. Field orientation of induction and synchronous machines are discussed in detail, as well as direct torque control. In addition, also switched reluctance machines and stepping motors are discussed in the last chapters. Finally, part 4 is devoted to the dynamics of traditional electrical machines. Also for the dynamics of induction and synchronous machine drives, the electromagnetics are used as the starting point to derive the dynamic models. Throughout part 4, much attention is paid to the derivation of analytical models. But, of course, the basic dynamic properties and probable causes of instability of induction and synchronous machine drives are discussed in detail as well, with the derived models for stability in the small as starting point. In addition to the study of the stability in the small, a chapter is devoted to large-scale dynamics as well (e.g. sudden short-circuit of synchronous machines). The textbook is used as the course text for the Bachelor’s and Master’s programme in electrical and mechanical engineering at the Faculty of Engineering and Architecture of Ghent University. Parts 1 and 2 are taught in the basic course ’Fundamentals of Electric Drives’ in the third bachelor. Part 3 is used for the course ’Controlled Electrical Drives’ in the first master, while Part 4 is used in the specialised master on electrical energy.

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LEGO Mindstorms and SPIKE Prime are great products with vast capabilities, but are often so complex that many people don’t know how to use them. LEGO provides a walk-through of a few projects to build, which are cool, but after building these many people get stuck on “now what?” This book answers that question by showing the underlying principles required to build their own ideas.This book is a hands-on tour of how machines work with LEGO—there’s nothing like building a machine with your own two hands to understand how it works. It includes aspects of software engineering, mechanical engineering, and electrical engineering. As parts and associated engineering concepts are presented, they will be shown in their practical use with graphical step-by-step assembly instructions. The concepts conveyed are mostly learned through building examples, with text explanation to reinforce the ideas being learned. Every engineering concept has a building example to go with it, in a quick build of less than 15 assembly steps. At the end of each chapter there’s a project to tie the concepts of the chapter together of a little more complexity, involving 15 to 30 steps. These assembly steps are drawn with a computer aided design program that looks like the diagrams that LEGO produces for its products, so readers will be familiar with the look of the assembly directions. What You'll Learn Layout a Word Blocks or Python computer program from scratch See how LEGO building elements are meant to be assembled Manipulate the power source of a rotating shaft from an electric motor Use gears to alter the speed and torque of a power train Change the motion from a rotating shaft to a desired action Basic mechanisms (turntable, differential, cam, ratchet, etc.) to Use sensors (motion, distance, light, color) to make interactive inventions Integrate mechanical, software, and electrical subsystems in a project Who This Book Is ForThe knowledge presumed in this book is basic familiarity in building with LEGO, having past experience with building a set of moderate complexity of more than a 100 pieces. Basic familiarity with operating a personal computer is also assumed, such as to install an app. Likely interested readers are: LEGO fans looking for ways to build new and better inventions, middle-school and high-school age students who have an interest in science, math, and engineering, adults who like to learn how things work and tinker with inventions, and educators who use the SPIKE Prime set and are looking for new ideas for lesson plans.

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