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The superfluous force seriously affects the dynamic load precision of the electro-hydraulic load simulator. Aiming at this question, the work principle of the electro-hydraulic load simulator was analyzed, and the bond graph models of the flow servo valve, hydraulic cylinder and load were established. These models sufficiently contain the higher-order nonlinear dynamic character of the electro-hydraulic...
The superfluous force exists in the electro-hydraulic servo rudder load system, and seriously affects the dynamic load precision of the system. Meanwhile, the superfluous force makes the stability of the system bad, let frequency width dwindle, and reduces the load sensitivity of the system. Aiming at these questions and in order to improve the control performance of the load system of the electro-hydraulic...
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