压电叠堆电静液作动器Simscape模型与实验研究

发布时间：2018-06-04 00:23

本文选题：压电叠堆 + 电静液作动器　；参考：《压电与声光》2017年06期

【摘要】：将海德福斯螺纹插装换向阀集成到压电叠堆电静液作动器中,形成一体化集成式双向运动的压电叠堆电静液作动器。基于压电叠堆电静液作动器的物理系统,采用Simscape搭建压电叠堆电静液作动器系统模型。对比了在不同蓄能器偏压、不同电压峰值条件作用下,压电叠堆电静液作动器的实验输出流量与仿真输出流量;以及换向阀换向周期为4s时,压电叠堆电静液作动器的实验输出位移与仿真输出位移,验证了搭建的Simscape模型的准确性。在系统模型得到验证的基础上,分析发现阀片的回流现象是造成压电叠堆电静液作动器在高频驱动时输出流量衰减的原因。
[Abstract]:An integrated piezoelectric stack electro-hydrostatic actuator is formed by integrating the Hyderworth threaded plug reversing valve into the piezoelectric stack electrohydrostatic actuator. Based on the physical system of piezoelectric stack electrohydrostatic actuator, a piezoelectric stack electrohydrostatic actuator system model is built with Simscape. The experimental and simulated output flow of piezoelectric stack electro-hydrostatic actuator under different accumulator bias voltage and different peak voltage conditions are compared, and the reversing period is 4 s. The experimental output displacement and the simulation output displacement of the piezoelectric stack electro-hydrostatic actuator verify the accuracy of the Simscape model. On the basis of the verification of the system model, it is found that the reflux phenomenon of the valve plate is the cause of the output flow attenuation of the piezoelectric stack electro-hydrostatic actuator when it is driven at high frequency.
【作者单位】：南京航空航天大学机电学院;上海航天控制技术研究所;上海伺服系统工程技术研究中心;
【基金】：国家自然科学基金资助项目(51575258) 南京航空航天大学研究生创新基地(实验室)开放基金资助项目(ykfjj20160518) 上海航天科技创新基金资助项目(SAST2016081) 江苏省“青蓝工程”中青年学术带头人项目资助项目
【分类号】：TH137

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