Reliability Evaluation of Key Hydraulic Components for Actuators of FAST Based on Small Sample Test

doi:10.1007/s12541-017-0185-2

	Reliability Evaluation of Key Hydraulic Components for Actuators of FAST Based on Small Sample Test
	Zhu, Ming 1,2; Zhao, Jingyi 3,4; Wang, Qiming 1,2
刊名	INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
	2017-11-01
卷号	18 期号:11 页码:1561-1566
关键词	Actuator Key hydraulic components Reliability Small sample test
ISSN号	2234-7593
DOI	10.1007/s12541-017-0185-2
通讯作者	Zhu, Ming(mzhu@bao.ac.cn)
英文摘要	The five-hundred meter aperture spherical radio telescope (FAST) is China's major science and technology infrastructure project. Upon completion, this telescope will be considered the largest single-dish radio telescope in the world. As main active mechanism of FAST, 2225 hydraulic actuators are used for adjusting the reflectors. The reliability of hydraulic actuators is the most critical matter. This paper applies the reliability theory and reliability test method into large project for the first time. Firstly, a parallel energy-saving method and equipment to test the two components of the actuators for FAST are designed. Secondly, reliability model based on small sample test is used to perform the best linear unbiased estimation of the test data. Average impact lifetime of the sampled gear pump and the sampled relief valve in their working condition are calculated. Finally, the results show that the lifetime request of the sampled gear pump and the sampled relief valve for hydraulic actuator of FAST are satisfied. The research method has guiding significance to the reliability study of key hydraulic components for similar hydraulic systems.
WOS关键词	DESIGN ; MODEL ; LIFE
WOS研究方向	Engineering
语种	英语
出版者	KOREAN SOC PRECISION ENG
WOS记录号	WOS:000415194400010
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/22568]
专题	中国科学院紫金山天文台
通讯作者	Zhu, Ming
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Beijing 100012, Peoples R China 3.Key Lab Heavy Machinery Hydrokinet Transfer & Con, Qinhuangdao 066004, Hebei, Peoples R China 4.Yanshan Univ, Key Labs Adv Forging & Stamping Technol & Sci, Qinhuangdao 066004, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Ming,Zhao, Jingyi,Wang, Qiming. Reliability Evaluation of Key Hydraulic Components for Actuators of FAST Based on Small Sample Test[J]. INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING,2017,18(11):1561-1566.
APA	Zhu, Ming,Zhao, Jingyi,&Wang, Qiming.(2017).Reliability Evaluation of Key Hydraulic Components for Actuators of FAST Based on Small Sample Test.INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING,18(11),1561-1566.
MLA	Zhu, Ming,et al."Reliability Evaluation of Key Hydraulic Components for Actuators of FAST Based on Small Sample Test".INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING 18.11(2017):1561-1566.