| 污垢热阻恒定应力加速寿命试验研究 |
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| 引用本文： | 杨善让,郭锋,孙灵芳,王胜平,徐志明.污垢热阻恒定应力加速寿命试验研究[J].工程热物理学报,2004,25(2):326-328. |
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| 作者姓名： | 杨善让 郭锋 孙灵芳 王胜平 徐志明 |
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| 作者单位： | 东北电力学院节能与测控技术研究中心,吉林,吉林,132012;东北电力学院节能与测控技术研究中心,吉林,吉林,132012;华北电力大学动力系,河北,保定,071003 |
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| 基金项目： | 吉林省科技发展计划项目资助(No.20020412)，原国家电力公司再大科技项目资助(No.SPKJ 013-07) |
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| 摘 要： | 为缩短渐近污垢试验时间,本文定义了污垢寿命,利用恒定应力加速寿命试验(简称恒加试验),基于定数截尾 指数寿命统计分析方法,求得加速系数a, b近似最小二乘估计,然后由加速模型求得在正常应力水平下的平均寿命估 计。实例计算结果表明,对渐近型污垢热阻进行加速试验是可信的,也是可行的。这对污垢试验研究具有重要价值。
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| 关 键 词： | 污垢热阻 污垢寿命 恒加试验 定数截尾试验 污垢加速模型 |
| 文章编号： | 0253-231X(2004)02-0326-03 |
| 修稿时间： | 2003年12月12 |
STUDY ON CONSTANT-STRESS ACCELERATED LIFE TESTS OF FOULING THERMAL RESISTANCE |
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| YANG Shan-Rang QUO Feng SUN Ling-Fang WANG Sheng-Ping XU Zhi-Ming.STUDY ON CONSTANT-STRESS ACCELERATED LIFE TESTS OF FOULING THERMAL RESISTANCE[J].Journal of Engineering Thermophysics,2004,25(2):326-328. |
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| Authors: | YANG Shan-Rang QUO Feng SUN Ling-Fang WANG Sheng-Ping XU Zhi-Ming |
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| Abstract: | In order to shorten the time of fouling test, fouling-life was defined, The statistical analysis method for censored exponential life data under constant-stress accelerated life testing models was given. The accelerated coefficients a and b were obtained. By using the accelerated model, the estimators of the fouling life under the usual stress could be obtained. The computing example was given. Results indicated that it is credibility and feasibility to proceed accelerated life test of asymptotic fouling thermal resistance, and will be of important value to the research of fouling test. |
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| Keywords: | fouling thermal resistance fouling-life constant-stress accelerated life test type-censoring test fouling accelerated model |
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