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The proposed paper deals with the problem of modelling and simulation of a dual-redundancy Electro-Hydrostatic Actuator (DREHA) by the way of co-simulation based on AMESim and MATLAB. With the development of More Electric Aircraft (MEA) technology, integrated Power-by-Wire (PBW) actuator will be used in the airborne actuation system. As an important PBW actuation system, EHA has virtues of high efficiency,...
In order to verify and optimize the design process of electro-hydraulic servo system, this paper set up a load-adjustable electro-hydraulic servo load test bench. Base on the structural analysis of test bench, the mathematical models of closed-loop torque and position control are established. After theoretical calculations and model simplification, a compound controller consisting of feedforward control...
This communication deals with the key issues of a hybrid actuation system operating in active/no-load mode. The hybrid actuation system under study is made of a servo valve controlled hydraulic actuator (SHA) and an electro-mechanical actuator (EMA). In active/no-load mode, both actuators are actively controlled; the SHA is in position control while the EMA is controlled to generate null force. Virtual...
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