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Reliability Evaluation of Key Hydraulic Components for Actuators of FAST Based on Small Sample Test
Zhu, Ming1,2; Zhao, Jingyi3,4; Wang, Qiming1,2
2017-11-01
Source PublicationINTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING
ISSN2234-7593
Volume18Issue:11Pages:1561-1566
Corresponding AuthorZhu, Ming(mzhu@bao.ac.cn)
AbstractThe 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.
KeywordActuator Key hydraulic components Reliability Small sample test
DOI10.1007/s12541-017-0185-2
WOS KeywordDESIGN ; MODEL ; LIFE
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Manufacturing ; Engineering, Mechanical
WOS IDWOS:000415194400010
PublisherKOREAN SOC PRECISION ENG
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22569
Collection中国科学院紫金山天文台
Corresponding AuthorZhu, Ming
Affiliation1.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
Recommended Citation
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.
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