Chapter 9 Design of Hydraulic Transmission systems (2)The friction resistance force F F=fFN (9-2) (3)The inertia load F G△v F =ma= 一X (9-3) 8 △t Besides three loads mentioned above,an actuator stands also viscosity resistance force,sealed resistance force and back pressure resistance etc. Homepage List Upwards Downwards Retumn ExitChapter 9 Design of Hydraulic Transmission systems 9 (2) The friction resistance force Ff F f F f N = (9-2) (3) The inertia load Fa Besides three loads mentioned above, an actuator stands also viscosity resistance force, sealed resistance force and back pressure resistance etc. a (9-3) G v F ma g t  = =  