機(jī)械原理

內(nèi)容概要

本書是根據(jù)國家教育部制訂的“高等工業(yè)學(xué)校機(jī)械原理課程教學(xué)基本要求”并結(jié)合作者多年教學(xué)和科研的成果而編寫的。本書以培養(yǎng)學(xué)生基本設(shè)計(jì)能力和創(chuàng)新設(shè)計(jì)能力為目標(biāo)，強(qiáng)化解析法和機(jī)構(gòu)綜合內(nèi)容，反映了機(jī)構(gòu)學(xué)的新成果和發(fā)展趨勢。全書共十二章，包括緒論、平面機(jī)構(gòu)結(jié)構(gòu)分析、機(jī)械運(yùn)動(dòng)分析、平面連桿機(jī)構(gòu)、凸輪機(jī)構(gòu)、齒輪機(jī)構(gòu)、輪系、其它常用機(jī)構(gòu)、組合機(jī)構(gòu)、機(jī)械平衡、機(jī)械系統(tǒng)的運(yùn)轉(zhuǎn)及其調(diào)速、機(jī)構(gòu)系統(tǒng)創(chuàng)新設(shè)計(jì)。大部分章節(jié)均附有相當(dāng)數(shù)量的思考題和練習(xí)題。為方便中國學(xué)生閱讀，書末附有英中詞匯對照表。    本書可作為高等工科院校本科機(jī)械類專業(yè)學(xué)生學(xué)習(xí)機(jī)械原理課程的教材及專業(yè)英語教材，也可供有關(guān)教師、學(xué)生及工程技術(shù)人員參考。

作者簡介

作者：葉仲和 藍(lán)兆輝 (英國)史密斯(M.R.Smith)

書籍目錄

Chapter1 Introduction  1.1 Study Object  1.2 Study Content  1.3 PurposeChapter2 Structural Analysis of Pianar Mechanims  2.1 Planar Kinematic Pairs and Planar Mechanisms  2.2 The Kinematic Diagram of a Mechanism  2.3 Degree of Freedom of a Mechanism  2.4 Points for Attention during the Calculation of DOF   2.5 The Composition Principle and Structural Analysis  Problems and ExercisesChapter3 Kinematic Analysis of Mechanisms  3.1 Tasks and Methods of Kinematic Analysis  3.2 Velocity Analysis by the Method of Instant Centres  3.3 Kinematic Analysis by Analytical Methods  Problems and ExercisesChapter4 Planar Linkage Mechanisms  4.1 Characteristics of Planar Linkage Mechanisms  4.2 The Types of Four-bar Linkages  4.3 Characteristics Analysis of Fou-bar Linkages  4.4 Dimensional Synthesis of Four-bar Linkages  Problems and ExercisesChapter5 Cam Mechanisms  5.1 Characteristics and Classification of Cam Mechanisms  5.2 Follower Motion Curves  5.3 Plate Cam with Translating Roller（or Knife-edge）Follower  5.4 Plate Cam with Oscilating Roller Follower  5.5 Plate Cam with Translating Flat-faced Follower  5.6 Plate Cam with Oscillating Flat-faced Follower  Problems and ExercisesChapter6 Gear Mechanisms  6.1 Types of Gear Mechanisms  6.2 Fundamentals of Engangement of Tooth Profiles  6.3 The Involute and Its Properties  6.4 Standard Involute Spur Gears  6.5 Gearing of Involute Spur Gears  6.6 Contact Ratio of an Involute Spur Gears Set  6.7 Manufacturing Methsds of Involute Profiles  6.8 Addendum Modification on Involute Spur Gears  6.9 Helical Gears for Parallel Shafts  6.10 Worm Gearing   6.11 Bevel Gears  Problems and ExercisesChapter7 Gear TrainsChapter8 Other Mechanisms in Common UseChapter9 Combined MechanismsChapter10 Balancing of MachineryChapter11 Motion of Mechanical Systems and its RegulationChapter12 Creative Design of Mechanism SystemsVocabularyReferences前言

章節(jié)摘錄

版權(quán)頁：插圖：（1） Choose the kinematic chain to be as short as possible A shorter kinematic chain here means fewer links and kinematic pairs. This can reduce thecost of manufacture and the kinematic error. Efficiency can also be increased. （2） Use the mechanism with higher efficiency The efficiency of a kinematic chain is the product of the efficiencies of the componentmechanisms if they are connected in series. Therefore, the kinematic chain transmitting themain power should not include a mechanism with lower efficiency. （3） Arrange the mechanisms in proper order Generally, the speed of working links are lower than the others and variable. Therefore,the mechanisms which convert the forms of motion （e. g. cam mechanisms and linkage mech-anisms） are placed at the end of the kinematic chain, i. e. near the working link. In thisway, the vibration of the mechanism can be reduced. In addition, the frictional transmittingmechanisms such as belt drives should be arranged near the motors where the speed is higherand the torque is lower. Such an arrangement can reduce the size of the driving system withoverload protection and the prime mover can be located with more flexibility. （4） Choose reasonable transmission ratios Every mechanism should work within its applicable range of transmission ratio to ensureproper performance. Furthermore, careful choice of the transmission ratios can considerablyreduce the size of the system. Obviously, the above hints can also be used in selection of the mechanisms or rough initialevaluation of the mechanism system.

編輯推薦

《機(jī)械原理》為高等工科院校本科機(jī)械類專業(yè)系列叢書之一。

圖書封面

評論、評分、閱讀與下載

---

    機(jī)械原理 PDF格式下載

---