A Method for Performance Degradation Modeling Based upon the Accelerated Experiment

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...

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Bibliographic Details
Published in:Journal of failure analysis and prevention 2017-12, Vol.17 (6), p.1182-1190
Main Authors: Wang, Haotian, Sun, Jian, Ding, Hong, Shan, Ganlin, Chang, Zhuang
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Corrosion and Coatings
Degradation
Experiments
Health monitoring (engineering)
Materials Science
Modelling
Performance degradation
Performance evaluation
Quality Control
Reliability
Safety and Risk
Servers
Solid Mechanics
Technical Article > -Peer-Reviewed
Tribology
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Summary: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.
ISSN:1547-7029
1728-5674
1864-1245
DOI:10.1007/s11668-017-0357-5