FAST液压促动器过滤系统

doi:10.3901/JME.2020.04.218

机械工程学报 ›› 2020, Vol. 56 ›› Issue (4): 218-223.doi: 10.3901/JME.2020.04.218

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FAST液压促动器过滤系统

雷政^1,2,3, 王启明^1,3, 甘恒谦^1,3, 朱明^1,3, 姜鹏^1,3

1. 中国科学院国家天文台北京 100101;
2. 中国科学院大学天文与空间科学学院北京 101408;
3. 中国科学院FAST重点实验室北京 100101

收稿日期:2019-02-25 修回日期:2019-10-31 出版日期:2020-02-20 发布日期:2020-04-23
通讯作者: 姜鹏(通信作者),男,1978年出生,博士,研究员。主要研究方向为工程力学、大型射电望远镜技术。E-mail:pjiang@bao.ac.cn
作者简介:雷政,男,1988年出生,博士研究生,工程师。主要研究方向为机械设计、液压传动、可靠性工程。E-mail:leizheng@nao.cas.cn;王启明,男,1961年出生,博士,研究员。主要研究方向为天文技术与方法、机械制造、串并联机器人和机械结构动态特性分析。E-mail:qimingwang@nao.cas.cn;甘恒谦,男,1978年出生,博士,副研究员。主要研究方向为射电天文技术方法,接收机前端设计。E-mail:ghq@nao.cas.cn;朱明,男,1985年出生,博士,副研究员。主要研究方向为结构健康监测,可靠性工程。E-mail:zhuming@nao.cas.cn
基金资助:
国家自然科学基金（11673040）和国家自然科学青年基金（11603045，11803053）资助项目。

Filtration System for Hydraulic Actuators of FAST

LEI Zheng^1,2,3, WANG Qiming^1,3, GAN Hengqian^1,3, ZHU Ming^1,3, JIANG Peng^1,3

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

Received:2019-02-25 Revised:2019-10-31 Online:2020-02-20 Published:2020-04-23

摘要/Abstract

摘要： 500 m口径球面射地望远镜（Five-hundred-meter aperture spherical radio telescope， FAST）促动器液压系没有过滤设计，随着运行时间的增长，设备的油液清洁度等级普遍超过设计许用范围，对其可靠性和使用寿命构成严重影响。针对该问题，提出液压系统动态平衡过滤概念，建立促动器液压系统污染控制数学模型，结合促动器现有条件设计了外挂式过滤系统方案。Matlab软件仿真显示，安装外挂式过滤系统后，液压促动器经10次工作循环达到动态平衡，油液清洁度等级为NAS6级。样机试验表明，理论和试验结果一致性较好，验证了污染控制模型建立的准确性和外挂式过滤系统方案的有效性。通过理论分析与试验相结合的方法，为FAST液压促动器油液污染问题处理提供了一种有效的外挂式过滤系统解决方案，也为类似液压系统油液污染控制研究提供参考。

关键词: 促动器, 动态平衡, 数学模型, 油液污染控制, 可靠性和寿命

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.

Key words: actuators, dynamic balance, mathematical model, contamination control of oil, reliability and lifetime

中图分类号:

TH137

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[J]. Journal of Mechanical Engineering, 2020, 56(4): 218-223.

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FAST液压促动器过滤系统

Filtration System for Hydraulic Actuators of FAST

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