Abstract
The technical, economic, and performance indicators of hydromechanical servo actuators with throttle control (HMSA/T) can be radically improved by structurally correcting the actuator initial configuration followed by parametrically optimizing the found solution. The conventional solution boils down to an analysis of partial correction problems. However, this adds difficulty to comparison of the results and entails a significant scope of refinement and adjustment works. The article presents a unified algorithm for settling matters concerned with structural and parametric correction of an HMSA/T as applied to the most efficient ways of changing the actuator initial structure: damping the hydraulic amplifier sliding valve and introducing additional feedbacks for the output section motion speed and derivative of pressure difference in the hydraulic amplifier outlet hydraulic lines. An integrated HMSA/T model is constructed on the basis of standard structural correction schemes and partial mathematical models of actuators, and the scheme of an algorithm for combined structural and parametric correction of the actuator is presented. It is shown that the algorithm can be implemented using limited computation resources with a quickly running application software.
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