船用直驱式容积控制正车执行机构的设计方法

摘要

[目的]为优化船用正车执行机构的尺寸、重量及辅助系统配置,设计一种直驱式容积控制电液伺服正车执行机构.[方法]通过双向工作齿轮泵的正转和反转实现伺服油缸的伸出和缩进控制,并通过流量配对阀实现正车执行机构在目标位置的自锁.建立正车执行机构的数学模型,并设计一种积分分离的模糊PID控制器.在此基础上,开展AMESim仿真及实验验证,研究该正车执行机构的控制策略及动静态特性.[结果]实验结果与仿真计算结果吻合较好,验证了正车执行机构设计的可行性.[结论]研究成果可为船用正车执行机构的集成化和小型化设计提供参考.%[Objectives]In order to reduce the size,weight and auxiliary system configuration of marine ahead actuators,this paper proposes a kind of direct drive volume control electro-hydraulic servo ahead actuator.[Methods]The protruding and indenting control of the servo oil cylinder are realized through the forward and reverse of the bidirectional working gear pump,and the flow matching valve implements the self-locking of the ahead actuator in the target position.The mathematical model of the ahead actuator is es-tablished,and an integral separation fuzzy PID controller designed.On this basis,using AMESim software to build a simulation model of the ahead actuator,and combined with testing,this paper completes an anal-ysis of the control strategy research and dynamic and static performance of the ahead actuator.[Results] The experimental results agree well with the simulation results and verify the feasibility of the ahead actua-tor's design.[Conclusions]The research results of this paper can provide valuable references for the inte-gration and miniaturization design of marine ahead actuators.