Study of the Electro-hydraulic Load Simulator Based on Double Servo Valve Concurrent Control

摘要：

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 load. simulator,furthermore,for the sake of solving the superfluous force this technical problem caused by the forced flow,the author proposes the method of adopting the flow servo valve and the flow-press servo valve concurrent control the electro-hydraulic load simulator load system. This method makes the flow-press servo valve as a flow compensation tache,and changes the electro-hydraulic force servo system with strong position disturbance to the electro-hydraulic force servo system without disturbance. Then the author studies the electrohydraulic force servo system on building its model,simulation and experiment and the result of the study shows that the superfluous force obviously decrease when the double valve concurrent control method adopted to the load system。 At the same time,the dynamic load precision of the load system is obviously improved.

关键词： the electro-hydraulic load simulator the superfluous force load precision flow-press servo valve double servo valve concurrent control.

作者: Jianying Li Junpeng Shao Zhongwen Wang Bo WU Guihua Han

作者单位: School of Mechanical & Power Engineering Harbin University of Science and Technology Harbin,Heilongjiang Province,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 2827-2833

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）