review-液压传动与控制英文课件.ppt

ReviewI.Key points of each chapter 1.Introduction to fluid power the definition of fluid power,advantages of fluid power,basic methods of transmitting power basic components required in a hydraulic system 2.Properties of hydraulic fluids primary functions of hydraulic fluids the definition and unit of pressure,pressure head,flow rate,bulk modulus,and viscosity,etc.Pascals law 3.Energy and Power in Hydraulic Systems applications of Pascals law conservation of energy definition of flow rate,the continuity equation hydraulic power Bernoullis equation 5.Basics of Hydraulic flow in Pipes two basic types of flow in pipes the definition and significance of Reynolds number 6.The Source of Hydraulic Power:Pumps Functions,Classification of pumps,Operation,configuration and symbol of each type pump Pump performance parameter 7.Fluid Power Actuators Functions,Operation,configuration and symbol of each power actuator double-acting cylinder and motor performance parameter hydrostatic transmissions 8.Control Components in Hydraulic Systems basic types of control devices.Configuration,Operation,Symbol,and applications in hydraulic circuit.Center flow path configuration for three-position,four-way directional valve 9.Hydraulic Circuit Design and AnalysisII Methods of Review