Journal of Failure Analysis and Prevention

, Volume 17, Issue 6, pp 1182–1190 | Cite as

A Method for Performance Degradation Modeling Based upon the Accelerated Experiment

  • Haotian Wang
  • Jian Sun
  • Hong Ding
  • Ganlin Shan
  • Zhuang Chang
Technical Article---Peer-Reviewed


Performance degradation modeling plays an important role in prognostics and health management of mechanical system. Influenced by the complex structure of the hydraulic pump and the limited experiment standards, it is hard to establish an appropriate performance degradation model. To fulfill current requirements, a method for establishing the performance degradation model based on accelerated experiment is proposed. In order to describe the general trend of the degradation, the double-stress exponential model is firstly established as the theoretical degradation model. On this basement, combined with the characteristics of the experiment, the accelerating coefficient is settled; meanwhile, the procedures for assuring the model parameters are presented. Furthermore, based on the accelerated experiment of the hydraulic pump under various stresses, the performance degradation model is finally established. Result of the experimental analysis indicates that the proposed method is applicable and the presented model is effective to measure the performance degradation of pump.


Performance degradation model Accelerated experiment Double-stress exponential Hydraulic pump 



This project is supported by National Natural Science Foundation of China (Grant No. 51305454). We also appreciate the AVIC Liyuan Hydraulic Corporation for their support to our experiment. At the same time, we are grateful to the Mechanical Engineering College and Luoyang Electronic Equipment Test Center of China, for providing the experimental situation. Last but not the least, we would like to express sincere appreciation to the others who used to provide great help.


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Copyright information

© ASM International 2017

Authors and Affiliations

  • Haotian Wang
    • 1
  • Jian Sun
    • 1
    • 2
  • Hong Ding
    • 2
  • Ganlin Shan
    • 1
  • Zhuang Chang
    • 2
  1. 1.Mechanical Engineering CollegeShijiazhuangPeople’s Republic of China
  2. 2.Luoyang Electronic Equipment Test Center of ChinaLuoyangPeople’s Republic of China

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