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论文:2014,Vol:32,Issue(2):262-267 |
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引用本文： |
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何新党, 苟文选, 刘永寿, 高宗战, 张峰. 考虑失效状态模糊性时的笛形管广义共振可靠性分析[J]. 西北工业大学 |
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He Xindang, Gou Wenxuan, Liu Yongshou, Gao Zongzhan, Zhang Feng. General Resonance Reliability Analysis for Hot-Air Anti-Icing Piccolo Tube with Fuzzy Failure State Considered[J]. Northwestern polytechnical university |
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| 考虑失效状态模糊性时的笛形管广义共振可靠性分析 |
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| 何新党, 苟文选, 刘永寿, 高宗战, 张峰 |
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| 西北工业大学 力学与土木建筑学院 飞行器可靠性工程研究所, 陕西 西安 710072 |
| 摘要: |
| 研究了模糊失效状态下气热防冰笛形管结构共振可靠性分析方法。建立了笛形管结构的参数化有限元模型并进行了模态分析。考虑结构尺寸参数、材料性能、外部激励的随机性以及共振状态的模糊性,采用模糊集合理论描述结构固有频率与外部激励的接近程度,建立了三角型隶属函数下的广义共振可靠性分析模型。基于分解定理和扩展定理推导了λ水平截集下笛形管结构广义共振可靠性求解方法。研究工作对飞机气热防冰管路的结构设计提供了参考。 |
| 关键词:
有限元方法
模糊集理论
隶属函数
模态分析
固有频率
参数化
概率
可靠性分析
共振
结构设计
广义失效概率
笛形管
共振可靠性
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| General Resonance Reliability Analysis for Hot-Air Anti-Icing Piccolo Tube with Fuzzy Failure State Considered |
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| He Xindang, Gou Wenxuan, Liu Yongshou, Gao Zongzhan, Zhang Feng |
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| Institute of Aircraft Reliability Engineering, Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an, 710072, China |
| Abstract: |
| A new general resonance reliability analysis method is proposed for hot-air anti-icing piccolo tube with fuzzy failure state considered. Firstly, a parametric model of hot-air anti-icing piccolo tube is built and the modal a-nalysis is performed. After that, considering the randomness of the size parameters, material properties and external excitation as well as the subjective fuzziness of resonance state, we characterized the closeness of structural natural frequency to that of the external stimulus with a fuzzy number. And then a general resonance reliability analysis model was built with a triangular membership function. On the basis of the decomposition theorem and the expansion theorem, we derive the generalized resonance reliability solution method under the level set. The research appears to provide some useful information for the structural design of hot-air anti-icing piccolo tube. |
| Key words:
finite element method
fuzzy set theory
membership functions
modal analysis
natural frequencies
parameterization
probability
reliability analysis
resonance
structural design
general failure probability
piccolo tube
resonance reliability
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| 收稿日期: 2013-10-15
修回日期:
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| DOI: |
| 基金项目: 航空科学基金(2011ZA53014);西北工业大学基础研究基金(JCY20130123);西北工业大学研究生创业种子基金(Z2014119);高等学校博士学科点专项科研基金(20136102120032)资助 |
| 通讯作者:
Email： |
| 作者简介: 何新党(1985-),西北工业大学博士研究生,主要从事结构系统可靠性分析及优化设计研究。
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参考文献: |
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