| 考虑相关性的同级叶片系统强度可靠度分析方法 |
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| 引用本文： | 陆山,高雅娟,吕文林.考虑相关性的同级叶片系统强度可靠度分析方法[J].航空动力学报,2008,23(1):17-20. |
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| 作者姓名： | 陆山 高雅娟 吕文林 |
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| 作者单位： | 西北工业大学,动力与能源学院,西安,710072 |
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| 摘 要： | 提出了考虑相关性的同级叶片系统强度可靠度分析方法.该方法包括同级叶片强度随机变量相关系数的数值模拟方法、同级叶片强度临界状态函数之间相关系数的确定方法.并给出考虑材料相关性的同级叶片系统可靠度计算二阶窄界限公式.讨论了考虑失效相关的同级叶片系统强度可靠度不同计算方法.最后通过算例表明所提出方法的有效性.
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| 关 键 词： | 航空、航天推进系统 相关系数 系统可靠度 叶片 数值仿真 |
| 文章编号： | 1000-8255(2008)01-0017-04 |
| 收稿时间： | 2006/12/29 0:00:00 |
| 修稿时间： | 2006年12月29 |
Analysis method for same-stage-blade system strength reliability concerning the correlation |
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| LU Shan,GAO Ya-juan and L&#; Wen-lin.Analysis method for same-stage-blade system strength reliability concerning the correlation[J].Journal of Aerospace Power,2008,23(1):17-20. |
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| Authors: | LU Shan GAO Ya-juan and L&#; Wen-lin |
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| Institution: | LU Shan,GAO Ya-juan,L(U) Wen-lin |
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| Abstract: | An analytical method for the strength reliability of the same-stage-blade system was proposed.The method covers numerical simulation and determination of the correlation coefficients of the same-stage-blade material strength and the strength limit state function.Moreover,the narrow limit formula for the same-stage-blade system strength reliability was presented.Then,the reliability calculation methods of the same-stage-blade system strength were discussed by taking into account failure-related factors.Finally,a numerical example of same-stageblade system was given to demonstrate the efficiency of the method. |
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| Keywords: | aerospace propulsion system correlation coefficient system reliability blades simulation |
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