文件名称:
Mechanisms+and+Mechanical+Devices+Source+5th
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文件大小: 28mb
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上传时间: 2015-09-10
详细说明： This is the fifth edition of a one-of-a-kind engineering reference book covering the past, present, and future of mechanisms and mechanical devices. It includes clear illustrations and straightforward descriptions of specific subjects rather than the theory and mathematics found in most engineering textbooks. You will find that this book contains hundreds of detailed line drawings that will hold your interest regardless of your background in mechanical engineering. The text accompanying the illustrations is intended to help you to understand the basic concepts of subjects that may or may not be familiar to you. You will find drawings and illustrations that are simply interesting and informative and perhaps others that could spur your creativity and prompt you to recycle them into your new designs or redesigns. They may offer solutions you had not previously considered because they were not visible inside contemporary products unless the product is disassembled. Solid state electronics and computer circuitry have displaced many earlier mechanical solutions, no doubt improving product reliability and efficiency while reducing their price. Nevertheless, many of those displaced mechanical components have lives of their own and may very well turn up in other products in different form performing different functions after undergoing dimensional and material transformations. Classical, proven mechanisms and mechanical devices may seem to disappear only to reappear in other forms and applications. Anyone who believes that all mechanisms will be replaced by electronics need only examine the sophistication of the latest self-winding mechanical watches, digital cameras, gyro-stabilized vehicles, and navigational systems. This book illustrates the ongoing importance of classical mechanical devices as well as the latest mechatronic devices formed by the merger between mechanics and electronics. It is a must addition to your personal technical library, and it offers you a satisfying way to “get up to speed” on new subjects or those you may have studied in the past but have now faded from your memory. Moreover, it is hoped that this book will encourage you to refresh your knowledge of these and other topics that interest you by accessing the many related Web sites on the Internet. What’s New in This Book? This fifth edition contains three new chapters: Chapter 3, Stationary and Mobile Robots, Chapter 4, Mechanisms for Renewable Power Generation, and Chapter 17, 3D Digital Prototypes and Simulation. Chapter 18, Rapid Prototyping, has been updated and completely revised, and new articles have been added to Chapters 5 through 16 that make up the archival core of the book. Five new articles have been added to Chapter 13, Motion- Specific Devices, Mechanisms, and Machines, which is part of the archival core. Also, five new articles have been added to Chapter 19, New Directions in Mechanical Engineering. A Quick Overview of Some Chapters Chapter 1 on basic mechanisms explains the physics of mechanisms including inclined planes, jacks, levers, linkage, gears, pulleys, genevas, cams, and clutches—all components in modern machines. A glossary of common mechanical terms is included. Chapter 2 on motion control explains open- and closed-loop systems with diagrams and text. Described and illustrated are the key mechanical, electromechanical, and electronic components that comprise modern automated robotic and mechatronic systems, including actuators, encoders, servomotors, stepper motors, resolvers, solenoids, and tachometers. It includes a glossary of motion control terms. Chapter 3, a new discussion of robots, includes an overview of stationary industrial robots and a wide range of mobile robots. Drawings and text explain the geometry of industrial robots and leading specifications are given for four of the newest robots. Seven mobile robots are described accompanied by their illustrations and leading specifications. They operate on Mars, on Earth, in the air, and under the sea. Other articles describe innovative NASA robots that climb, crawl, hop, and rappel down cliffs. In addition, a glossary defines common robot terms. Chapter 4, a new addition, describes the leading contenders for generating carbon-free renewable power, which happen to be mechanical in nature. They are driven by the free energy of the wind, sun, and natural water motion. Examples described and illustrated include wind turbines and their farms, four different solar thermal farm concepts, and proposed methods for tapping ocean tidal and wave energy. Both the upsides and downsides of these plants are stated. Attention is given to location, efficiency, public acceptance, ...展开收缩
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