| 1. | Mttf ; mean time to failure
平均失效前时间 |
| 2. | Mean time to failures mttf
平均无故障时间 |
| 3. | Mean time to failures
平均无故障时间 |
| 4. | Mean time to failure
平均失效前时间 |
| 5. | Time to failure
失效前时间 |
| 6. | Standard test method for creep and time to failure of adhesives in static shear by compression loading wood - to - wood
用压缩负荷静剪切法法测定胶粘剂蠕变和老化时间的标准试验方法 |
| 7. | For the first time , a new approach is developed to estimate the weibull distribution " s parameters by using the median rank and the least ? quares method . the estimation of the confidence limits of the mean time to failure is given
本文首次联合利用中位秩及最小二乘法给出了估计威布尔分布参数的一种新方法，给出了平均寿命置信限的估计，并结合实际试验数据进行了计算。 |
| 8. | At the same time , the formulas on reliability , mean time to failure and availability , mean time between failure etc were deduced respectively based on the distribution density function and markov state - transition diagram
同时依据分布密度函数和马尔可夫模型的数学理论分别推导了两种系统的可靠度、平均故障前时间和可用度、平均故障间隔时间等指标的计算公式，为软件内核程序的开发奠定了理论基础。 |
| 9. | Organisation audit : it reviews the content and frequency of the preventive maintenance , the response time to failures , the reporting , the escalation procedures , the follow up of the issues , the structure of the maintenance organization , the spare part management , the adaptation of the maintenance to the machine specificities and history
系统核查：审核定期检修的内容和频率、故障反应时间、报告、扩张程序、事项的跟踪、检修程序的结构、备件的管理、检修是否与机器的性能和历史相符合。 |
| 10. | Then , with the concept of accumulated failure probability , the proposed approach combines the least ? quares method with bayes " theorem , takes advantage of the parameter estimation for single weibull distribution to each derived subgroup data set , and estimates the parameters of each subpopulation . the estimates given by this paper also satisfy the maximum likelihood equation . the mean time to failure and the reliability estimation of the mixed population are given
然后通过利用累积失效概率等概念，对每个导出的子组数据集联合运用最小二乘法、贝叶斯定理和对单一威布尔分布的参数估计法，从而得到每个子总体的满足极大似然原理的参数估计，给出了该混合总体平均寿命和可靠度的估计。 |
