| 基于信息熵的密封环强度模糊可靠性计算 |
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| 引用本文： | 金子明,孙春一.基于信息熵的密封环强度模糊可靠性计算[J].科学技术与工程,2012,12(8):1909-1912. |
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| 作者姓名： | 金子明 孙春一 |
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| 作者单位： | 辽宁石油化工大学科研处和机械工程学院,抚顺,113001 |
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| 摘 要： | 热装式密封环是目前国内外应用最多的一种结构，影响密封环强度的因素很多而导致其强度和工作应力具有模糊性。根据信息熵理论中模糊熵和概率熵等效转换模型，建立起在正态分布下的模糊变量等效转换为随机变量的关系式，定义密封环相对应变量和允许相对应变量的隶属函数，推导出应变量校核的模糊可靠性计算公式，通过实例分析了热装式密封环结构的可靠程度。
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| 关 键 词： | 信息熵 密封环 强度 模糊可靠性 隶属函数 |
| 收稿时间： | 2011/12/25 0:00:00 |
| 修稿时间： | 2011/12/25 0:00:00 |
Fuzzy Reliability Calculation of Seal Ring Strength on Information Entropy |
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| jinziming and sunchunyi.Fuzzy Reliability Calculation of Seal Ring Strength on Information Entropy[J].Science Technology and Engineering,2012,12(8):1909-1912. |
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| Authors: | jinziming and sunchunyi |
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| Institution: | 1 (Research Dept and School of Mechanical Engineering1,Liaoning University of Petroleum & Chemical Technology Fushun 113006,P.R.China) |
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| Abstract: | A heat seal ring is a structure of the most application at home and abroad, many factors affect the strength of rings and its strength and stress are fuzzy.Based on information entropy theory that fuzzy entropy is equal to probability entropy,the fuzzy variables equivalent conversion into random variables in normal distribution,defines membership functions of the strain variables and allow strain variables of the sealing, deduces the fuzzy reliability calculation formula of strain variables check, by the example the reliability of the heat seal ring structure is analysising. |
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| Keywords: | information entropy seal ring strength fuzzy reliability subordinate functions |
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