液压与气压传动（英汉双语）第2版教学课件作者陈淑梅第1章Chapter_1课件.pptVIP

Chapter 1 Introduction to Hydraulic and Pneumatic Transmission 1.1 Study on Hydraulic and Pneumatic Transmission 1.2 Operating Principles of Hydraulics Transmission 1.3 Composition of Hydraulic Transmission System 1.4 Features of Hydraulic and Pneumatic Transmission 1.5 The Development History and Application of Hydraulic and Pneumatic Technology medium control means the contents 2. Motion transfer From an operational standpoint, any hydraulic systems can be divided into five logical segments. your suggestions  are welcome! Fig.1-1 Operating principle of hydraulic jack Fig. 1-2 Principle of a typical hydraulic system Chapter 1 Introduction to Hydraulic and Pneumatic Transmission * Hydraulic and pneumatic pressure transmission Chapter list medium： Fluid medium energy of compressive fluid (pressure oil or compressive air) 1.1 Study on Hydraulic and Pneumatic Transmission control means ： Hydraulic and pneumatic transmissions are similar in operating principle and control means. Special sub-circuits built by various hydraulic (or pneumatic) components are used to build up particular hydraulic/pneumatic transmission systems to realize energy transfer and control. contents： (1)Physical performances and static/dynamic characters of fluid . (2)Operating principle and construct several hydraulic elements and sub-circuit (3) Hydraulic/pneumatic system designs are the best way to study power (hydraulic/pneumatic) transmission and control technology. 1.2 Operating Principles of Hydraulics Transmission Pascal’s law ：pressure exerted on a confined liquid is transmitted undiminished in all directions and acts with equal force on all equal areas. Fig.1-1 Operating principle of hydraulic jack 1-Small actuator 2-lever 3-Heavy load 4-Big actuator 5-Check valve 6-Reservoir 7,8-Non-return valve （1-2） （1-1） 1. Power transmission Thus the moving piston can do work on an outside load. We can get the fir