LEI Zheng1,2,3, WANG Qiming1,3, GAN Hengqian1,3, ZHU Ming1,3, JIANG Peng1,3
1. National Astronomical Observatory, Chinese Academy of Sciences, Beijing 100101; 2. School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 101408; 3. CAS Key Laboratory of FAST, Chinese Academy of Sciences, Beijing 100101
Abstract：There is not filtration design of actuators of (Five-hundred-meter aperture spherical radio telescope, FAST). With the working time increasing, most of oil contamination level of hydraulic actuators of FAST is exceed allowable values, and the reliability and lifetime of actuators are cut down. To solve the problem, the principle of dynamic balance of oil filtration is proposed. The mathematical model of contamination control for hydraulic system is established, and the solution of hung outside filtration system for hydraulic actuators is designed. The model is simulated by Matlab. The results show that the dynamic balance state of actuator can be attained by 10 times working after the hung outside filtration system installed, and the oil of NAS6 can be achieved at the same time. The test of prototypes is completed, and the results of simulation and test agree with each other very well. The effectively of the solution for actuators is proved to improve the grade of hydraulic oil, and the mathematical model is proved to be correct. An effective solution is provided to solve the problem of actuator of FAST by the method of combination theoretical analysis and test. Meanwhile, it can be used as the reference for similar research of hydraulic pollution control.
雷政, 王启明, 甘恒谦, 朱明, 姜鹏. FAST液压促动器过滤系统[J]. 机械工程学报, 2020, 56(4): 218-223.
LEI Zheng, WANG Qiming, GAN Hengqian, ZHU Ming, JIANG Peng. Filtration System for Hydraulic Actuators of FAST. Journal of Mechanical Engineering, 2020, 56(4): 218-223.
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