| 汽车零部件威布尔模糊可靠度计算 |
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| 引用本文： | 王铁,吴净,周淑文,茹红强.汽车零部件威布尔模糊可靠度计算[J].辽宁工程技术大学学报(自然科学版),2007,26(4):596-598. |
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| 作者姓名： | 王铁 吴净 周淑文 茹红强 |
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| 作者单位： | 1. 沈阳理工大学,汽车学院,辽宁,沈阳,110168
2. 东北大学,机械工程与自动化学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家自然科学基金资助项目(50372010)，辽宁省博士科研启动基金资助项目(20061014)，沈阳理工大学博士启动基金资助项目(0612) |
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| 摘 要： | 从强度安全性的角度出发,综合运用了概率密度函数联合积分法与功能密度函数积分法,整理并推导了汽车零部件的威布尔模糊可靠度计算公式,即应力、强度都为威布尔分布,隶属度函数为K次抛物线分布时的模糊可靠度计算公式;通过VB编程实现数值解的计算,根据输入的原始数据、原函数与积分区间的特点进行积分变换,然后利用中点公式积分法与龙贝格求积法进行积分计算。本程序可直接应用于设计计算中,以提高汽车零部件的设计水平。
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| 关 键 词： | 车辆工程 零部件 威布尔 可靠性 模糊数学 |
| 文章编号： | 1008-0562（2007）04-0596-03 |
| 修稿时间： | 2006-06-04 |
Weibull fuzzy reliability about vehicle parts |
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| WANG Tie,WU Jing,ZHOU Shu-wen,RU Hong-qiang.Weibull fuzzy reliability about vehicle parts[J].Journal of Liaoning Technical University (Natural Science Edition),2007,26(4):596-598. |
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| Authors: | WANG Tie WU Jing ZHOU Shu-wen RU Hong-qiang |
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| Institution: | 1.Aotomobile College, Shenyang Ligong University, Shenyang 110168,China; 2. College of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004,China |
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| Abstract: | Considering the safety and strength of vehicle parts,using integrations of probability density function and performance density function the equation of Weibull fuzzy reliability about vehicle parts was gotten.The stress and strength has Weibull distribution and the subordinate function is a parabola of exponential k.The integral change was achieved based on initial data and function imported.This number resulting from VB program in the computer was obtained by using middle-points integral calculus and Romberg integration.This program can be used in the design of vehicle engineering for raising the level of design. |
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| Keywords: | vehicle engineering parts Weibull reliability fuzzy mathematics |
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