Study of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying Rice distribution
This paper presents an improved calculation method of fatigue damage in spacecraft equipment under wideband random vibration. The method is based on principle of linear fatigue damage theory (Miner’s rule) to calculate accumulated fatigue damage, where the calculation of stress cycles is improved by...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2022-11-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/88/916/88_22-00222/_pdf/-char/en |
| _version_ | 1797977053448896512 |
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| author | Tomoya NIWA Qinzhong SHI Shigemasa ANDO |
| author_facet | Tomoya NIWA Qinzhong SHI Shigemasa ANDO |
| author_sort | Tomoya NIWA |
| collection | DOAJ |
| description | This paper presents an improved calculation method of fatigue damage in spacecraft equipment under wideband random vibration. The method is based on principle of linear fatigue damage theory (Miner’s rule) to calculate accumulated fatigue damage, where the calculation of stress cycles is improved by more general Rice distribution instead of conventional Rayleigh distribution, which has been commonly used for decades. Examples of numerical simulation and test data of spacecraft equipment are used to demonstrate the accuracy of these two different statistical distributions and show that the generated stress of the equipment subject to wideband random vibration excitation would be filtered into a narrowband random stress response due to resonance of equipment. However, the statistical distribution of peak value of the narrowband random stress response can vary depending on the spectrum of excitation and resonance frequency and differs from the conventional Rayleigh distribution assumption. This paper, through the numerical and test examples, demonstrates that the improved method is a more feasible method which can create more accurate and less conservative accumulated fatigue damage than the conventional Rayleigh distribution. |
| first_indexed | 2024-04-11T05:00:49Z |
| format | Article |
| id | doaj.art-510562739b0b45d5b34393d4f91f8430 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T05:00:49Z |
| publishDate | 2022-11-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-510562739b0b45d5b34393d4f91f84302022-12-26T01:09:00ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612022-11-018891622-0022222-0022210.1299/transjsme.22-00222transjsmeStudy of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying Rice distributionTomoya NIWA0Qinzhong SHI1Shigemasa ANDO2Japan Aerospace Exploration AgencyJapan Aerospace Exploration AgencyJapan Aerospace Exploration AgencyThis paper presents an improved calculation method of fatigue damage in spacecraft equipment under wideband random vibration. The method is based on principle of linear fatigue damage theory (Miner’s rule) to calculate accumulated fatigue damage, where the calculation of stress cycles is improved by more general Rice distribution instead of conventional Rayleigh distribution, which has been commonly used for decades. Examples of numerical simulation and test data of spacecraft equipment are used to demonstrate the accuracy of these two different statistical distributions and show that the generated stress of the equipment subject to wideband random vibration excitation would be filtered into a narrowband random stress response due to resonance of equipment. However, the statistical distribution of peak value of the narrowband random stress response can vary depending on the spectrum of excitation and resonance frequency and differs from the conventional Rayleigh distribution assumption. This paper, through the numerical and test examples, demonstrates that the improved method is a more feasible method which can create more accurate and less conservative accumulated fatigue damage than the conventional Rayleigh distribution.https://www.jstage.jst.go.jp/article/transjsme/88/916/88_22-00222/_pdf/-char/enfatigue damagerice distributionrayleigh distributionminer’s ruleacoustic testrandom vibration testnarrowband randomwideband randomirregurality |
| spellingShingle | Tomoya NIWA Qinzhong SHI Shigemasa ANDO Study of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying Rice distribution Nihon Kikai Gakkai ronbunshu fatigue damage rice distribution rayleigh distribution miner’s rule acoustic test random vibration test narrowband random wideband random irregurality |
| title | Study of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying Rice distribution |
| title_full | Study of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying Rice distribution |
| title_fullStr | Study of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying Rice distribution |
| title_full_unstemmed | Study of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying Rice distribution |
| title_short | Study of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying Rice distribution |
| title_sort | study of improved fatigue damage calculation of spacecraft equipment under wideband random vibration excitation by applying rice distribution |
| topic | fatigue damage rice distribution rayleigh distribution miner’s rule acoustic test random vibration test narrowband random wideband random irregurality |
| url | https://www.jstage.jst.go.jp/article/transjsme/88/916/88_22-00222/_pdf/-char/en |
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