MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS
Reliability is one of important index in the analysis and evaluation of mechanical structure. Aiming at the problems of various failure modes and low efficiency of reliability evaluation for complex mechanical structures, the reliability analysis method based on polynomial chaos expansions is applie...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2022-01-01
|
| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.04.014 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841536021117796352 |
|---|---|
| author | WANG ZhiMing ZHENG Lei ZHANG LuXi YUAN Hao LIU WeiMin |
| author_facet | WANG ZhiMing ZHENG Lei ZHANG LuXi YUAN Hao LIU WeiMin |
| author_sort | WANG ZhiMing |
| collection | DOAJ |
| description | Reliability is one of important index in the analysis and evaluation of mechanical structure. Aiming at the problems of various failure modes and low efficiency of reliability evaluation for complex mechanical structures, the reliability analysis method based on polynomial chaos expansions is applied to the reliability analysis of mechanical structures by combining Monte Carlo random sampling and polynomial chaos expansions. In addition, considering the correlation of parameters and various failure modes in the limit state function, the reliability evaluation method of mechanical structure considering failure correlation is given. Finally, a worm gear two-stage reducer is taken as an example to verify the proposed method according to analyzes the various limit state function of different failure form. The computational results show that the reliability evaluation method based on polynomial chaos expansions is efficient and accurate in mechanical structure reliability analysis. And when failure correlation is considered, it is also simple because of avoiding the complex transformation calculation problem. |
| format | Article |
| id | doaj-art-71b017dbf92a43118badb22b67baed4e |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-71b017dbf92a43118badb22b67baed4e2025-01-15T02:24:04ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-014485285829914100MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONSWANG ZhiMingZHENG LeiZHANG LuXiYUAN HaoLIU WeiMinReliability is one of important index in the analysis and evaluation of mechanical structure. Aiming at the problems of various failure modes and low efficiency of reliability evaluation for complex mechanical structures, the reliability analysis method based on polynomial chaos expansions is applied to the reliability analysis of mechanical structures by combining Monte Carlo random sampling and polynomial chaos expansions. In addition, considering the correlation of parameters and various failure modes in the limit state function, the reliability evaluation method of mechanical structure considering failure correlation is given. Finally, a worm gear two-stage reducer is taken as an example to verify the proposed method according to analyzes the various limit state function of different failure form. The computational results show that the reliability evaluation method based on polynomial chaos expansions is efficient and accurate in mechanical structure reliability analysis. And when failure correlation is considered, it is also simple because of avoiding the complex transformation calculation problem.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.04.014Structural reliabilityPolynomial chaos expansionsFailure correlationTwo-stage reducerMonte Carlo simulation |
| spellingShingle | WANG ZhiMing ZHENG Lei ZHANG LuXi YUAN Hao LIU WeiMin MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS Jixie qiangdu Structural reliability Polynomial chaos expansions Failure correlation Two-stage reducer Monte Carlo simulation |
| title | MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS |
| title_full | MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS |
| title_fullStr | MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS |
| title_full_unstemmed | MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS |
| title_short | MECHANICAL STRUCTURAL RELIABILITY ANALYSIS BASED ON POLYNOMIAL CHAOS EXPANSIONS |
| title_sort | mechanical structural reliability analysis based on polynomial chaos expansions |
| topic | Structural reliability Polynomial chaos expansions Failure correlation Two-stage reducer Monte Carlo simulation |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.04.014 |
| work_keys_str_mv | AT wangzhiming mechanicalstructuralreliabilityanalysisbasedonpolynomialchaosexpansions AT zhenglei mechanicalstructuralreliabilityanalysisbasedonpolynomialchaosexpansions AT zhangluxi mechanicalstructuralreliabilityanalysisbasedonpolynomialchaosexpansions AT yuanhao mechanicalstructuralreliabilityanalysisbasedonpolynomialchaosexpansions AT liuweimin mechanicalstructuralreliabilityanalysisbasedonpolynomialchaosexpansions |