Reliability Evaluation of Multiple DCFP System subject to Shifting Threshold
This paper focuses on system reliability analysis with dependent competing failure process due to soft failure and hard failure. Some new probabilistic methods based on cumulative shock model and nonlinear Wiener process under different shifting thresholds situation are obtained. Considering that no...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/9206239 |
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| _version_ | 1832566331042430976 |
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| author | Chunping Li Huibing Hao Fang Xu Guotao Zhao |
| author_facet | Chunping Li Huibing Hao Fang Xu Guotao Zhao |
| author_sort | Chunping Li |
| collection | DOAJ |
| description | This paper focuses on system reliability analysis with dependent competing failure process due to soft failure and hard failure. Some new probabilistic methods based on cumulative shock model and nonlinear Wiener process under different shifting thresholds situation are obtained. Considering that nonlinearity exists extensively in practice, the continuous soft failure process is governed by random effected nonlinear Wiener process. Firstly, reliability evaluation models for hard failure and soft failure are obtained under the cumulative shock, respectively. Furthermore, some system reliability models under different shifting thresholds situation are studied, in which failure threshold will decrease after a certain number of shocks. A real numerical example about fatigue crack growth dataset is carried out to demonstrate the proposed procedure. Numerical results indicate that both random shocks and shifting threshold have significant effect on system reliability. Finally, some sensitivity analysis are also been given. |
| format | Article |
| id | doaj-art-321a580d93b84dbc99bf174b28461949 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-321a580d93b84dbc99bf174b284619492025-02-03T01:04:22ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/92062399206239Reliability Evaluation of Multiple DCFP System subject to Shifting ThresholdChunping Li0Huibing Hao1Fang Xu2Guotao Zhao3School of Mathematics and Statistics, Hubei Engineering University, Xiaogan, Hubei, ChinaSchool of Mathematics and Statistics, Hubei Engineering University, Xiaogan, Hubei, ChinaSchool of Computer and Information Science, Hubei Engineering University, Xiaogan, Hubei, ChinaSchool of Computer and Information Science, Hubei Engineering University, Xiaogan, Hubei, ChinaThis paper focuses on system reliability analysis with dependent competing failure process due to soft failure and hard failure. Some new probabilistic methods based on cumulative shock model and nonlinear Wiener process under different shifting thresholds situation are obtained. Considering that nonlinearity exists extensively in practice, the continuous soft failure process is governed by random effected nonlinear Wiener process. Firstly, reliability evaluation models for hard failure and soft failure are obtained under the cumulative shock, respectively. Furthermore, some system reliability models under different shifting thresholds situation are studied, in which failure threshold will decrease after a certain number of shocks. A real numerical example about fatigue crack growth dataset is carried out to demonstrate the proposed procedure. Numerical results indicate that both random shocks and shifting threshold have significant effect on system reliability. Finally, some sensitivity analysis are also been given.http://dx.doi.org/10.1155/2020/9206239 |
| spellingShingle | Chunping Li Huibing Hao Fang Xu Guotao Zhao Reliability Evaluation of Multiple DCFP System subject to Shifting Threshold Shock and Vibration |
| title | Reliability Evaluation of Multiple DCFP System subject to Shifting Threshold |
| title_full | Reliability Evaluation of Multiple DCFP System subject to Shifting Threshold |
| title_fullStr | Reliability Evaluation of Multiple DCFP System subject to Shifting Threshold |
| title_full_unstemmed | Reliability Evaluation of Multiple DCFP System subject to Shifting Threshold |
| title_short | Reliability Evaluation of Multiple DCFP System subject to Shifting Threshold |
| title_sort | reliability evaluation of multiple dcfp system subject to shifting threshold |
| url | http://dx.doi.org/10.1155/2020/9206239 |
| work_keys_str_mv | AT chunpingli reliabilityevaluationofmultipledcfpsystemsubjecttoshiftingthreshold AT huibinghao reliabilityevaluationofmultipledcfpsystemsubjecttoshiftingthreshold AT fangxu reliabilityevaluationofmultipledcfpsystemsubjecttoshiftingthreshold AT guotaozhao reliabilityevaluationofmultipledcfpsystemsubjecttoshiftingthreshold |