Reliability Analysis of Cylindrical Worm Drive Using Fourth-moment Method Considering Failure Correlation

doi:10.15961/j.jsuese.201900005

CORC > 兰州理工大学 > 兰州理工大学

	Reliability Analysis of Cylindrical Worm Drive Using Fourth-moment Method Considering Failure Correlation
	Wang, Zhiming; Zhang, Yafei; Song, Yalong
刊名	Gongcheng Kexue Yu Jishu/Advanced Engineering Science
	2020-05-20
卷号	52 期号:3 页码:221-226
关键词	Bending strength Failure (mechanical) Failure modes Gear teeth Maximum entropy methods Maximum principle Method of moments Monte Carlo methods Probability density function Wheels Worm gears Comprehensive reliability assessment Constraint conditions Correlation coefficient Failure correlation Maximum entropy principle Reliability assessments Reliability methods Taylor series expansions
ISSN号	20963246
DOI	10.15961/j.jsuese.201900005
英文摘要	In order to evaluate the reliability of the cylindrical worm drive mechanism, the Taylor series expansion is used to expand the state function of the worm gear mechanism and the first four-order center moments of the structural state function are obtained. Regarding this as a constraint condition, the probability density functions of the worm gear tooth surface contact strength and tooth root bending strength structural state function are obtained by combining the maximum entropy principle. On the basis of the probability density functions, the reliability of the two failure modes of the worm gear is analyzed. On the other hand, considering the correlation between the two failure modes of worm gear tooth surface contact and tooth root bending, the reliability model under failure-related conditions is established, and the correlation coefficient between the two failure modes and the overall reliability of worm gear are given. Taking the worm gear of a reducer as an example, the proposed method is verified by Monte Carlo simulation. The results show that the reliability method based on the fourth moment and the maximum entropy principle has higher precision, and there is a certain correlation between the two failure modes of the worm wheel. Therefore, the failure-related worm wheel reliability assessment method is of great significance for the comprehensive reliability assessment of worm drive. © 2020, Editorial Department of Advanced Engineering Sciences. All right reserved.
语种	中文
出版者	Sichuan University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115168]
专题	兰州理工大学
作者单位	School of Mechanical and Electronic Eng., Lanzhou Univ. of Technol., Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Zhiming,Zhang, Yafei,Song, Yalong. Reliability Analysis of Cylindrical Worm Drive Using Fourth-moment Method Considering Failure Correlation[J]. Gongcheng Kexue Yu Jishu/Advanced Engineering Science,2020,52(3):221-226.
APA	Wang, Zhiming,Zhang, Yafei,&Song, Yalong.(2020).Reliability Analysis of Cylindrical Worm Drive Using Fourth-moment Method Considering Failure Correlation.Gongcheng Kexue Yu Jishu/Advanced Engineering Science,52(3),221-226.
MLA	Wang, Zhiming,et al."Reliability Analysis of Cylindrical Worm Drive Using Fourth-moment Method Considering Failure Correlation".Gongcheng Kexue Yu Jishu/Advanced Engineering Science 52.3(2020):221-226.