• CN：11-2187/TH
• ISSN：0577-6686

›› 2014, Vol. 50 ›› Issue (16): 41-46.

• 论文 •

### 基于元器件初始信息的寿命评估方法

1. 河北工业大学电气工程学院
• 发布日期:2014-08-20

### Lifetime Evaluation Approach Based on Initial Information of Components

LI Zhigang;ZHANG Feifei;LI Lingling

1. School of Electrical Engineering, Hebei University of Technology
• Published:2014-08-20

Abstract: Components are one of weakness in electromechanical system, and the evaluation of its service lifetime is significant to improve application reliability of the overall system. For the components of which initial information can reflect its inherent defect, an approach is proposed to evaluate the lifetime of the components based on its initial information. Cluster analysis is taken to process the data which is obtained by concentrating the initial information of components. Based on the definition of performance evaluation index (PEI), the PEI of each sample is calculated. The relation model between the PEI and lifetime of components is set up in different types of sample-sets. Then, it is determined that what type of sample-set a new sample belongs to. For the new sample, its lifetime assessment is generated by evaluating the relation model of sample-set which it belongs to for its PEI. Taking contact resistance of relay as an example, it is confirmed that the proposed method is feasible and effective.