An Analytical Solution for Predicting the Vibration-Fatigue-Life in Bimodal Random Processes
Predicting the vibration-fatigue-life of engineering structures subjected to random loading is a critical issue for. Frequency methods are generally adopted to deal with this problem. This paper focuses on bimodal spectra methods, including Jiao-Moan method, Fu-Cebon method, and Modified Fu-Cebon me...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/1010726 |
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| _version_ | 1841524649219850240 |
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| author | Chaoshuai Han Yongliang Ma Xianqiang Qu Mindong Yang |
| author_facet | Chaoshuai Han Yongliang Ma Xianqiang Qu Mindong Yang |
| author_sort | Chaoshuai Han |
| collection | DOAJ |
| description | Predicting the vibration-fatigue-life of engineering structures subjected to random loading is a critical issue for. Frequency methods are generally adopted to deal with this problem. This paper focuses on bimodal spectra methods, including Jiao-Moan method, Fu-Cebon method, and Modified Fu-Cebon method. It has been proven that these three methods can give acceptable fatigue damage results. However, these three bimodal methods do not have analytical solutions. Jiao-Moan method uses an approximate solution, Fu-Cebon method, and Modified Fu-Cebon method needed to be calculated by numerical integration which is obviously not convenient in engineering application. Thus, an analytical solution for predicting the vibration-fatigue-life in bimodal spectra is developed. The accuracy of the analytical solution is compared with numerical integration. The results show that a very good agreement between an analytical solution and numerical integration can be obtained. Finally, case study in offshore structures is conducted and a bandwidth correction factor is computed through using the proposed analytical solution. |
| format | Article |
| id | doaj-art-9487d2bf67e545e29818eef692d17cda |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-9487d2bf67e545e29818eef692d17cda2025-02-03T05:47:49ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/10107261010726An Analytical Solution for Predicting the Vibration-Fatigue-Life in Bimodal Random ProcessesChaoshuai Han0Yongliang Ma1Xianqiang Qu2Mindong Yang3College of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, ChinaCollege of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, ChinaCollege of Shipbuilding Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, ChinaGuangdong Electric Power Design Institute Co. Ltd. of China Energy Engineering Group, Guangzhou, ChinaPredicting the vibration-fatigue-life of engineering structures subjected to random loading is a critical issue for. Frequency methods are generally adopted to deal with this problem. This paper focuses on bimodal spectra methods, including Jiao-Moan method, Fu-Cebon method, and Modified Fu-Cebon method. It has been proven that these three methods can give acceptable fatigue damage results. However, these three bimodal methods do not have analytical solutions. Jiao-Moan method uses an approximate solution, Fu-Cebon method, and Modified Fu-Cebon method needed to be calculated by numerical integration which is obviously not convenient in engineering application. Thus, an analytical solution for predicting the vibration-fatigue-life in bimodal spectra is developed. The accuracy of the analytical solution is compared with numerical integration. The results show that a very good agreement between an analytical solution and numerical integration can be obtained. Finally, case study in offshore structures is conducted and a bandwidth correction factor is computed through using the proposed analytical solution.http://dx.doi.org/10.1155/2017/1010726 |
| spellingShingle | Chaoshuai Han Yongliang Ma Xianqiang Qu Mindong Yang An Analytical Solution for Predicting the Vibration-Fatigue-Life in Bimodal Random Processes Shock and Vibration |
| title | An Analytical Solution for Predicting the Vibration-Fatigue-Life in Bimodal Random Processes |
| title_full | An Analytical Solution for Predicting the Vibration-Fatigue-Life in Bimodal Random Processes |
| title_fullStr | An Analytical Solution for Predicting the Vibration-Fatigue-Life in Bimodal Random Processes |
| title_full_unstemmed | An Analytical Solution for Predicting the Vibration-Fatigue-Life in Bimodal Random Processes |
| title_short | An Analytical Solution for Predicting the Vibration-Fatigue-Life in Bimodal Random Processes |
| title_sort | analytical solution for predicting the vibration fatigue life in bimodal random processes |
| url | http://dx.doi.org/10.1155/2017/1010726 |
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