1) constant-stress accelerated life test
恒加试验
1.
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.
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。
2.
Basing on the conclusion of others on single stress accelerated life test for Weibull distribution, the paper analyses the data on double stress accelerated life test for Weibull distribution and gives the statistical methods of constant-stress accelerated life test ( including type I censored and type II censored ) and step-stress accelerated life test.
本文在前人对Weibull分布下单应力加速寿命试验数据的统计分析基础上,对Weibull分布下双应力加速寿命试验数据的统计分析作了较为全面的探讨,给出了双应力恒加试验(包括定时截尾和定数截尾两种情况)及双应力步加试验(包括交叉步加试验和分组步加试验)下数据的统计分析方法。
2) Stress Accelerated Life Testing
恒加试验
1.
The paper first introduces the present lifetime estimation statistical analysis and its shortage of constant stress accelerated life testing,then proposes a new method based on the residual GM(1,1) model.
介绍了目前恒加试验中,正常应力水平下特征寿命点估计的数据统计分析方法及其不足。
3) constant temperature accelerated test
恒温加速试验
1.
The chemical stability of aqueous solution of ferulic acid was studied by the constant temperature accelerated test according to the princiPle of chemical dynamics.
根据化学动力学原理,采用恒温加速试验方法对阿魏酸水溶液的化学稳定性进行了研究,通过高效液相色谱法测定样品中阿魏酸含量。
4) the simple constant-stress accelerated life test
简单恒加试验
1.
Based on the grouped data,this essay gets the estimation of the equal intervals of the simple constant-stress accelerated life test and the simple step-stress acceler.
针对分组数据在简单恒加试验和简单步加试验的场合,给出了等间距的估计,并证明简单恒加试验中的等间距精度优于简单步加试验。
5) double constant-stress accelerated life test
双应力恒加试验
1.
Based on analysing the zero-failure data on double constant-stress accelerated life test (typeⅡcensored)for Weibull distribution,the author gives the statistical methods of Bayes estimate and modification likelihood function.
论述了Weibull分布场合下双应力恒加试验无失效数据的统计分析,给出了Bayes估计法和修正似然函数法。
6) accelerated life tests
恒加寿命试验
1.
The optimal design of accelerated life tests for lognormal distribution under type-Ⅰ interval censoring with progressively random removals
对数正态分布恒加寿命试验在带有随机移走的定时截尾模型下的优化设计
补充资料:恒应变试验
分子式:
CAS号:
性质:测试应力腐蚀破裂性能的一种方法。用机械手段将试样弯至预定形态如U形、C形、弯梁形等,用卡具保持恒定变形。在试验溶液(也可以是标准溶液,如沸腾氯化镁)中浸泡后,用金相显微镜检查裂纹的生成及形态。其优点是简单易行,缺点是裂纹产生后会引起应力松弛。此外,在确定最初出现裂纹的时间时,需要经常定期将试件从溶液中取出观察。
CAS号:
性质:测试应力腐蚀破裂性能的一种方法。用机械手段将试样弯至预定形态如U形、C形、弯梁形等,用卡具保持恒定变形。在试验溶液(也可以是标准溶液,如沸腾氯化镁)中浸泡后,用金相显微镜检查裂纹的生成及形态。其优点是简单易行,缺点是裂纹产生后会引起应力松弛。此外,在确定最初出现裂纹的时间时,需要经常定期将试件从溶液中取出观察。
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