| 涡轮增压器压气机叶片静强度可靠性分析 |
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| 引用本文： | 陈晓伟,朱梅林,徐凯,李兵. 涡轮增压器压气机叶片静强度可靠性分析[J]. 华中科技大学学报(自然科学版), 1999, 0(11) |
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| 作者姓名： | 陈晓伟 朱梅林 徐凯 李兵 |
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| 作者单位： | 华中理工大学动力工程系 |
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| 基金项目： | 船舶工业国防科技应用基础研究基金 |
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| 摘 要： | 应用有限元法对某增压器压气机叶片进行了静应力分析与计算，得到危险点的应力均值，然后通过改进的一次二阶矩法对该叶片进行了静强度可靠性分析，在该方法中引入了多元线性回归法来逼近状态函数．结果分析表明该叶片是可靠的
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| 关 键 词： | 压气机叶片 强度与应力 可靠度系数 可靠性 改进一次二阶矩法 |
The Analysis of Static Strength Reliability in Turbocharger Compressor Blade |
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| Chen Xiaowei Zhu Meilin Xu Kai Li Bing. The Analysis of Static Strength Reliability in Turbocharger Compressor Blade[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1999, 0(11) |
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| Authors: | Chen Xiaowei Zhu Meilin Xu Kai Li Bing |
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| Affiliation: | Chen Xiaowei Zhu Meilin Xu Kai Li Bing |
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| Abstract: | Advanced First Order Second Moment (AFOSM) method, as a technique developed for structural reliability, is applied to mechanical reliability problems. According to stress versus strength interference theory, we assume that the probability distributions of random variables are replaced by normal distributions. The stress of a given turbocharger compressor blade is calculated by Finite Element Method (FEM). The safety index of the blade is obtained through AFOSM method, in which the performance function is approximated using the multi variable linear regression method. The results show that the blade is reliable. |
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| Keywords: | compressor blade strength and stress safety index reliability AFOSM method |
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