| 汽车零部件的正态模糊可靠度计算 |
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| 引用本文： | 王铁,张国忠.汽车零部件的正态模糊可靠度计算[J].沈阳大学学报,2008,20(2):5-7. |
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| 作者姓名： | 王铁 张国忠 |
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| 作者单位： | 1. 沈阳理工大学,汽车与交通学院,辽宁,沈阳,110168
2. 沈阳大学,机械工程学院,辽宁,沈阳,110044 |
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| 摘 要： | 从强度安全性的角度出发，综合运用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正态模糊可靠度计算公式，即应力、强度都为正态分布，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．
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| 关 键 词： | 车辆工程 零部件 可靠性 模糊数学 |
| 文章编号： | 1008-9225(2008)02-0005-03 |
| 修稿时间： | 2007年10月23 |
Normal Fuzzy Reliability About Vehicle Parts |
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| WANG Tie,ZHANG Guozhong.Normal Fuzzy Reliability About Vehicle Parts[J].Journal of Shenyang University,2008,20(2):5-7. |
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| Authors: | WANG Tie ZHANG Guozhong |
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| Institution: | WANG Tie, ZHANG Guozhong(1. School of Vehicle and Traffic, Shenyang Ligong University, Shenyang 110168, China; 2. School of Mechanical Engineering, Shenyang University, Shenyang 110004, China) |
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| Abstract: | With considering safety of intensity, integrating distribution＇s density and function＇s density, the normal fuzzy reliability formulas about vehicle parts is gotten, namely, forces, intensities are normal distribution and subordinate is parabola of exponential K. The integral change is achieved according to initial data and function imported and extent of integrated. The number result with VB program in the computer is achieved by using middle-points integral calculus and Romberg integration. |
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| Keywords: | vehicle engineering parts reliability fuzzy mathematics |
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