Study on Friction Torque Loading with an Electro-hydraulic Load Simulator

This article, in order to precisely impose friction on aircraft and weapon actuation systems, presents a new friction loading method characteristic of "torque-zero velocity" switching control with an electro-hydraulic load simulator. As the general Stri-beck friction model has little related to static friction, it proposes a "torque-zero velocity" switcher, in which a zero-velocity controller is developed to load the static friction and a torque controller the kinetic frction. With the help of mathematical mod-eling, this article designs a "torque-zero velocity" switching controller and, correspondingly, provides a "dual-threshold judg-ment" algorithm. Simulation results indicate that the proposed method can be successfully used to carry out the static and kinetic friction simulation with an electro-hydraulic load simulator.

作 者： Shang Yaoxing Jiao Zongxia Wang Xiaodong Zhao Sijun   作者單位： School of Automation Science and Electrical Engineering, Belling University of Aeronautics and Astronautics, Beijing 100191, China  刊 名： 中國(guó)航空學(xué)報(bào)（英文版）  ISTIC 英文刊名： CHINESE JOURNAL OF AERONAUTICS  年，卷(期)： 2009 22(6)  分類號(hào)： V2  關(guān)鍵詞： fiiction   electro-hydraulic load simulator   friction torque loading   torque-zero velocity switching control   servo mechanism actuator  

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