The composition and working principle of a certain loading device is introduced,an electro-hydraulic control model of the loading device is established.The proportional integral(PI)control,speed feedforward compensation control,and adaptive backstepping control strategy of the loading device are analyzed,and the above control strategies are verified.The verification results are consistent with the analysis situation.The use of speed feedforward compensation control can compensate for the force loading control deviation caused by acceleration factors in the proportional integral control strategy.The use of adaptive backstepping control can further improve the control deviation caused by system parameter uncertainty.
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