本教材是根據教育部提齣的“麵嚮21世紀教學內容和課程體係改革計劃”的基本思想，以滿足新世紀教學改革和教材改革為指導思想進行編寫的，全書以培養機械係統方案創新設計能力為目標，在內容編排上貫穿瞭以設計為主綫的思想，將全書內容進行瞭有機的組閤，共分為十章，主要內容包括；機構的結構分析，機構的性能分析，平麵連杆機構、凸輪機構、齒輪機構、輪係及其設計，其他常用機構及其設計，機構係統動力學設計，機械係統的運動方案及機構的創新設計。為瞭方便讀者掌握重點內容和拓寬知識麵，每章後均有“知識要點與拓展”的內容。本書在注重培養學生邏輯思維能力的同時，還配有多媒體教學軟件，為開發學生手形象思維能力創造瞭條件。本書主要作為普通高等院校機械類專業的教學用書，也可作為非機械類專業學生及有關工程技術人員的參考書。

Preface to the Second Edition（第2版前言）
Preface to the first Edition（第1版前言）
Chapter 1Introduction緒論1
1.1General Information機械總論2
1.2Teaching Content and Object of the Course機械原理課程的研究對象與內容6
1.3Purpose of This Course學習機械原理課程的目的8
Chapter 2Structural Analysis of Planar Mechanisms平麵機構的結構分析11
2.1Kinematic Chain and Mechanisms運動鏈與機構12
2.2Schematic Diagram of Mechanisms機構運動簡圖16
2.3Degree of Freedom of Planar Mechanisms機構自由度的計算22
2.4Mechanism Analysis and Innovation機構分析與創新30
Chapter 3Kinematic Analysis of Planar Mechanisms平麵機構的運動分析41
3.1Introduction 平麵機構運動分析概述42
3.2Velocity Analysis with Instantaneous Center用速度瞬心法對機構進行速度分析44
3.3Kinematic Analysis by Graphical Method用相對運動圖解法對機構進行運動分析48
3.4Kinematic Analysis by Algebraic Method用解析法對機構進行運動分析60
Chapter 4Force Analysis of Planar Mechanisms平麵機構的力分析67
4.1Introduction平麵機構力分析概述68
4.2Force Analysis Including Inertia Forces in Mechanisms計入慣性力的機構力分析68
4.3Force Analysis Including Friction in Mechanisms計入摩擦的機構力分析76
4.4Friction and Design of Self�睱ocking Mechanisms摩擦與自鎖機構的設計88
Chapter 5Synthesis of Planar Linkages平麵連杆機構及其設計95
5.1Characteristics and Types of Planar Linkages平麵連杆機構的特點與基本型式96
5.2Fundamental Features of Four�瞓ar Linkages平麵連杆機構的基本性質104
5.3Synthesis of Four�睟ar Linkages平麵連杆機構的設計112
Chapter 6Design of Cam Mechanisms凸輪機構及其設計137
6.1Introduction凸輪機構概述138
6.2Basic Types of Follower Motion and Design從動件的運動規律及其設計144
6.3Cam Profile Synthesis凸輪輪廓麯綫的設計156
6.4Sizes of Cam Mechanisms凸輪機構基本尺寸的設計164
6.5Computer�睞ided Design of Cam Mechanisms計算機輔助凸輪設計170
目錄Theory of Machines and Mechanisms (Bilingual Edition)Chapter 7Design of Gear Mechanisms齒輪機構及其設計177
7.1Classification of Gear Mechanisms齒輪機構的分類178
7.2Fundamental Law of Gearing齒廓嚙閤基本定律180
7.3Involute Properties and Involute Tooth Profiles漸開綫齒廓及其嚙閤特點182
7.4Nomenclatures of Standard Spur Gear and Gear Sizes
漸開綫標準直齒圓柱齒輪的基本參數和幾何尺寸186
7.5Meshing Drive of Standard Spur Gears漸開綫直齒圓柱齒輪機構的嚙閤傳動192
7.6Forming and Undercutting of Gear Teeth漸開綫圓柱齒輪的加工及其根切現象202
7.7Nonstandard Spur Gears變位齒輪概述208
7.8Parallel Helical Gears平行軸斜齒圓柱齒輪機構212
7.9Worm and Worm Gears蝸杆傳動機構220
7.10Bevel Gears錐齒輪機構226
Chapter 8Design of Gear Trains輪係及其設計233
8.1Classification of Gear Trains輪係及其分類234
8.2Ratio of Ordinary Gear Trains定軸輪係傳動比的計算236
8.3Ratio of Epicyclic Gear Trains周轉輪係傳動比的計算242
8.4Ratio of Combined Gear Trains混閤輪係傳動比的計算246
8.5Some Considerations for Design of Planetary Gear Train周轉輪係設計中的若乾問題250
8.6Introduction of Miscellaneous Planetary Trains其他類型的周轉輪係簡介258
Chapter 9Introduction of Screws, Hook�餾 Couplings and Intermittent Mechanisms
螺鏇機構、萬嚮聯軸器和間歇運動機構簡介265
9.1Screw Mechanisms螺鏇機構266
9.2Universal Joints萬嚮聯軸器268
9.3Ratchet Mechanisms棘輪機構270
9.4Geneva Mechanisms槽輪機構274
9.5Indexing Cam Mechanisms凸輪式間歇運動機構278
9.6Intermittent Gear Mechanisms不完全齒輪機構280
Chapter 10Spatial Mechanisms and Robotic Mechanisms
空間連杆機構及機器人機構概述285
10.1Introduction of Spatial Mechanisms空間連杆機構概述286
10.2Introduction of Robotic Mechanisms機器人機構概述292
Chapter 11Design of Mechanism Systems機構係統設計299
11.1Introduction of Mechanism Systems機構係統設計概述300
11.2Harmonization Design of Mechanism Motions機構係統的運動協調設計302
11.3Combined Methods of Mechanism Systems機構係統的組閤方法304
Chapter 12Fluctuation and Regulation in Speed of Machines
機械係統的運轉及速度波動的調節313
12.1Operating Analysis of Machinery機械運轉過程分析314
12.2Equivalent Kinetic Model of Mechanism Systems機械係統的等效動力學模型318
12.3Kinetic Equations of Mechanism Systems機械係統的運動方程及其求解326
12.4Periodic Speed Fluctuation and Regulation in a Machine周期性速度波動及飛輪設計330
12.5Aperiodic Speed Fluctuation and Regulation in a Machine非周期性速度波動及其調節338
Chapter 13Balance of Machinery機械的平衡設計343
13.1Introduction 機械平衡概述344
13.2Balance Design of Rigid Rotors剛性轉子的平衡設計346
13.3Balance Test of Rigid Rotors剛性轉子的平衡試驗356
13.4Balance of Planar Mechanisms平麵機構的平衡簡介360
Appendix 附錄一362
Appendix 附錄二372
References 參考文獻379

前言/序言

This book has been written for mechanical engineering students who are beginning to study the theory of machines and mechanisms or professional English.Since the book was published in 2012, some universities take it as Chinese textbook of theory of machines and mechanisms for undergraduates, some universities take it as English textbook of theory of machines and mechanisms for undergraduates, some universities take it as bilingual education textbook of theory of machines and mechanisms, some universities take it as foreign students textbook of theory of machines and mechanisms,and some universities take it as international class students textbook of theory of machines and mechanisms. Such students will have acquired a set of mechanical engineering knowledge and the ability to use English language to express themselves in spoken and written forms.This edition has been influenced by changes in engineering education, suggestions by colleagues and users, and the author’s checkup.The major revisionary works for publishing this new edition are as follows.Effort has been made to remove all sorts of errors and misprints as far as possible.We adopt a simple mathematical manner for easy comprehension by students in Chapter 5, but there are not any examples to describe the new methods. So many examples have been added in Chapter 5.Geneva wheel with 6 slots will be more helpful to understand the action ratio, so we use a Geneva wheel with 6 slots instead of Geneva wheel with 4 slots.Some of examples have been added in Chapter 13 too.Two�瞕imensional codes are added in this edition to describe the mechanisms animated figures.I acknowledge the efforts of professor He Cencheng of Beijing University of Technology for revisionary and compiled works for this edition.Zhao Jiaheng of Beijing Institute of Technology compiled some examples.Finally, I make an affectionate acknowledge to my PhD doctors team for their support.I am grateful to all readers who pointed out errors and mistakes of the previous edition and gave valuable suggestions.Zhang Chunlin本教材是為機械工程專業的學生學習機械原理課程或專業英語編寫的。
本教材於2012年齣版後，一些學校選其作為本科生機械原理課程的中文教材，教學時講授中文，英語內容作為參考；一些學校選其作為機械原理課程的英文教材，教學時講授英文，中文內容作為參考；一些開設雙語教學的學校，選其作為本科生的英漢雙語教學機械原理課程教材，教學時有時用英文講授，有時用中文講授，中、英文內容可用來對比和參考。一些學校選其作為外國留學生的機械原理課程教材，也有一些學校選其作為國際班的機械原理課程教材。本教材不但使學生獲得機械原理的基本知識，還可以提高學生英語的口語和寫作能力。
經過幾年的使用，根據作者自查和用戶意見反饋，對其進行瞭修改、補充和完善，如在平麵連杆機構的綜閤內容中，引入瞭新方法，但缺少例題佐證。所以，本次修改增加瞭相應例題；在說明槽輪機構的運動特性時，采用瞭六槽槽輪代替四槽槽輪，這樣就容易理解主動銷輪和從動槽輪的轉角關係，更容易理解槽輪機構的運動係數。在機械平衡設計一章中也增加瞭例題。
本次修訂還更正瞭一些文字錯誤和語法錯誤，並引入瞭二維碼技術，讀者隻要用手機掃描插圖旁的二維碼，就可以觀看相應機構的動畫，增強瞭本教材的可讀性。
北京工業大學的何岑成老師參與瞭本次修訂工作和英語教材的編審工作，北京理工大學的趙嘉珩為本教材增編瞭例題。
感謝我的博士生團隊為本書的修訂所做的工作。
由於編者水平有限，書中難免存在錯誤和疏漏之處，歡迎廣大讀者批評指正。
張春林Along with the rapid development of science and technology, the higher education will speed up internationalization. So it is necessary to compile a compatible textbook which not only has Chinese feature, but also makes for globalization. This is a new object that the teaching reform of China s higher education is faced with. On the one hand, the direct adoption of the foreign classical textbooks does not suit the actual state of our teaching in Chinese universities; on the other hand, the Chinese language textbooks cannot be brought in line with the international practice. Therefore, we will compile a bilingual textbook on “theory of machines and mechanisms” with the support of China Machine Press.This book is based on the basic teaching r
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