The results show that reliable life of CTPB propellant is about 10 years.

Based on the analysis and comparison between the method of one-sided tolerance limit coefficient and the method of two-dimensional one-sided tolerance limit coefficient,a small-sample assessment method for reliable life with normal distribution in accelerated test is proposed.

A practical point estimation for the reliable life of a product without life distribution data is established based on a non parameter statistical method.

Based on the wear law and reliability theory of the thrust bearing,the mathematical model of reliability life calculation on the wear of the thrust bearing is derived.

Based on Weibull distribution, this paper gives a reliability estimation of the fatigue life of the metal material of some key component on the airplane, and gives estimating results of partial reliability degree and reliability life.

Based on typeⅡcensored data,a generalized lower confidence limit is constructed for the reliability life of a two-parameter exponential distribution by using the concept of a generalized confidence interval due to Weerahandi.

The Ozawa's and Kissinger's equations were employed for the kinetic parameters of thermal oxidation reaction of edible peanut oil, and it's oxidation lifetime were also calculated by using Ozawa's equation.

Research on the prediction of aging life of cables caused by heat;

Prediction of aging life for rubber vibration isolator

After hot and aging life study of the cable insulation material has been conducted through hot analytical method,a calculation formula of the cable insulation material s hot and aging life has been derived.

The stochastic analysis on carbonization life of reinforced concrete structure;

Probabilistic model analysis of carbonization life for structure;