• 论文 •

### 基于比例风险模型的环境折合系数确定方法

1. 北京航空航天大学 工程系统工程系, 北京 100191
• 收稿日期:2009-03-26 出版日期:2010-04-30 发布日期:2010-09-13
• 作者简介:洪东跑(1983-),男,浙江温洲人,博士生,hloving@163.com.

### Environment referring factor based on proportional hazards model

Hong Dongpao, Ma Xiaobing, Zhao Yu, Zhang Lin

1. Dept. of System Engineering of Engineering Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
• Received:2009-03-26 Online:2010-04-30 Published:2010-09-13

Abstract: The relations of reliability and environment factors were described by the proportional hazards model (PHM). Using the model,the influences of environment factors on reliability were measured quantificationally. A calculation method of environment referring factor was proposed. In the method,the varied environment test data was used synthetically to improve the calculation precision of environment referring factor. The prediction of environment referring factor is becoming possible with the method. For complex environment,the generalized proportional hazards model was introduced to measure the interaction of varied environment on reliability. The model was established by radial basis function using the varied environment test data. The statistical inference of the environment referring factor for usual life distributions was put forward based on the PHM. The example shows that the method is reasonable and straightforward for engineering.