压电叠堆电静液作动器Simscape模型与实验研究
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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。
An integrated bidirectional motion piezoelectric stack electro-hydrostatic actuator(PEHA)has been realized by integrating the Heidelfos thread insertion valve into the piezoelectric stack electro-hydrostatic actuator(PEHA).Based on the physical system of PEHA,the PEHA model has been established by using the Simscape.The experimental output flow and the simulated output flow of the piezoelectric stack electro-hydrostatic actuator are compared under the conditions of different accumulator bias and different voltage peak conditions.The experimental output displacement and the simulated output displacement of the piezoelectric stack electro-hydrostatic actuator are also compared when the reversing valve period of the reversing valve is 4 s.The accuracy of the Simscape model is verified.Based on the verification of the system model,it is found that the backflow phenomenon of the valve plate is the cause of the attenuation of the output flow of the piezoelectric stack electro-hydrostatic actuator at high frequency driving.
An integrated bidirectional motion piezoelectric stack electro-hydrostatic actuator(PEHA)has been realized by integrating the Heidelfos thread insertion valve into the piezoelectric stack electro-hydrostatic actuator(PEHA).Based on the physical system of PEHA,the PEHA model has been established by using the Simscape.The experimental output flow and the simulated output flow of the piezoelectric stack electro-hydrostatic actuator are compared under the conditions of different accumulator bias and different voltage peak conditions.The experimental output displacement and the simulated output displacement of the piezoelectric stack electro-hydrostatic actuator are also compared when the reversing valve period of the reversing valve is 4 s.The accuracy of the Simscape model is verified.Based on the verification of the system model,it is found that the backflow phenomenon of the valve plate is the cause of the attenuation of the output flow of the piezoelectric stack electro-hydrostatic actuator at high frequency driving.
引文
[1]SIROHI J,CADOU C,CHOPRA I.Investigation of the dynamic characteristics of a piezohydraulic actuator[J].Journal of Intelligent Material Systems and Structures,2005,16(6):481-492.
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[5]JIN X L,SAN H N,LI Y Z,et al.Experimental study on the performance of a bidirectional hybrid piezoelectric-hydraulic actuator[J].International Journal of Aeronautical and Space Sciences,2015,16(4):520-528.
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[9]SIROHI J,CADOU C,CHOPRA I.Investigation of the dynamic characteristics of a piezohydraulic actuator[J].Journal of Intelligent Material Systems and Structures,2005,16(6):481-492.
[10]刘迎澍,刘建才.基于Simscape的车辆ABS建模与仿真研究[J].计算机仿真,2013,30(9):148-152.LIU Yingshu,LIU Jiancai.Modeling and simulation of vehicle anti-lock braking system based on Matlab/Simscape[J].Computer Simulation,2013,30(9):148-152.
[11]CHAUDHURI A,WERELEY N M.Experimental validation of a hybrid electrostrictive hydraulic actuator analysis[J].Journal of Vibration and Acoustics,2010,132(2):021006.
[12]杨旭磊,朱玉川,纪良,等.超磁致伸缩电静液作动器的试验研究与特性分析[J].航空学报,2016,37(9):2839-2850.YANG Xulei,ZHU Yuchuan,JI Liang,et al.Experimental investigation and charcteristic analysis of a gaint magnetostrictive materials-based electro-hydrostatic actuator[J].Acta Aeronautica et Astronautica Sinica,2016,37(9):2839-2850.
[2]CHAUDHURI A,YOO J H,WERELEY N M.Design,test and model of a hybrid magnetostrictive hydraulic actuator[J].Smart Materials and Structures,2009,18(8):085019.
[3]SIROHI J,CHOPRA I.Design and development of a high pumping frequency piezoelectric-hydraulic hybrid actuator[J].Journal of Intelligent Material Systems and Structures,2003,14(3):135-147.
[4]JOHN S,SIROHI J,WANG G,et al.Comparison of piezoelectric,magnetostrictive,and electrostrictive hybrid hydraulic actuators[J].Journal of Intelligent Material Systems and Structures,2007,18(10):1035-1048.
[5]JIN X L,SAN H N,LI Y Z,et al.Experimental study on the performance of a bidirectional hybrid piezoelectric-hydraulic actuator[J].International Journal of Aeronautical and Space Sciences,2015,16(4):520-528.
[6]JOHN S,CHAUDHURI A,WERELEY N M.A magnetorheological actuation system:test and model[J].Smart Materials and Structures,2008,17(2):025023.
[7]朱玉川,朱斌,费尚书,等.一种电静液作动器:201610727547.0[P].2016-04-14.
[8]CHAUDHURI A,WERELEY N M.Dynamic model of a hybrid hydraulic actuator utilizing different smart materials[C]//Seattle,Washington,USA:ASME2007International Mechanical Engineering Congress and Exposition,American Society of Mechanical Engineers,2007:193-202.
[9]SIROHI J,CADOU C,CHOPRA I.Investigation of the dynamic characteristics of a piezohydraulic actuator[J].Journal of Intelligent Material Systems and Structures,2005,16(6):481-492.
[10]刘迎澍,刘建才.基于Simscape的车辆ABS建模与仿真研究[J].计算机仿真,2013,30(9):148-152.LIU Yingshu,LIU Jiancai.Modeling and simulation of vehicle anti-lock braking system based on Matlab/Simscape[J].Computer Simulation,2013,30(9):148-152.
[11]CHAUDHURI A,WERELEY N M.Experimental validation of a hybrid electrostrictive hydraulic actuator analysis[J].Journal of Vibration and Acoustics,2010,132(2):021006.
[12]杨旭磊,朱玉川,纪良,等.超磁致伸缩电静液作动器的试验研究与特性分析[J].航空学报,2016,37(9):2839-2850.YANG Xulei,ZHU Yuchuan,JI Liang,et al.Experimental investigation and charcteristic analysis of a gaint magnetostrictive materials-based electro-hydrostatic actuator[J].Acta Aeronautica et Astronautica Sinica,2016,37(9):2839-2850.