Design And Experimental Analyse On Electrorheological Disk Transmission Actuator

Electrorheological (ER) technology is a newly developing science in electromechanical application fields. ER fluids (ERF) can invert between liquid phase and solid phase. The high and new technological features of ERF include a fast response speed, continuous and reversible controllability. ERF can be widely applied in electromechanical transmission and control systems.There are many reports about ER applications presently, but the working mode of ERF is flow mode or shear mode, the squeeze mode is few. A new type of ER actuator-ripple ecectrorheological actuator (RERA) is developed. The working mode of RERA is compound mode - shear-squeeze mode. RERA is a breakthrough of ER technology in transmission mechanics. The characteristics of RERA involve a fast response speed, stepless regulation and computer controllability.Virtual instrument (VI) technology and ER technology are combined together. The measurement and control system of RERA are set up based on Vis. The establishing and controlling scheme of the system are introduced. The stepper motor and asynchronous motor are controlled expediently. In the same time the output torque can also be measured and controlled rapidly and accurately.Due to the complex nonlinear relation between the applied electrical field and the torque, it's difficult to set up the model using existing physic and mathematic theories. However, artificial neural network can express discretional nonlinear relation and has ability of study, which provides a new concept and method to solve this problem. The identification and verification of the actuator are completed by using BP neural network. The reliable model of RERA can be set up, so the more foundation theories can be studied.A large member of experimental findings was analyzed. The output torque of RERA and plate ER actuator were compared. The results showed that the torque transferred by ripple actuator is larger decuple than that of plate actuator.