Title :
A new method of real-time reliability assessment based on SVR and Bayes algorithms
Author :
Feng, Fuzhou ; Rao, Guoqiang ; Wu, Guangping ; Wang, Guanqiu
Author_Institution :
Dept. of Mech. Eng., Acad. of Armored Force Eng., Beijing, China
Abstract :
Real-time reliability assessment methods make it possible to asset system reliability on-line, which promote the development of the reliability research. A new method of real-time reliability assessment based on support vector regression (SVR) and Bayes is put forward in this paper. Firstly, principles of SVR and Bayes methods are particularly introduced, and then a model of real-time reliability assessment is set up. Finally, based on a selected degradation parameter-Small flow at high temperature (SFHT) of a hydraulic pump under experimental testing, process of real-time reliability assessment are successfully achieved, result shows that the model of real-time reliability assessment is effective. This method combines the real-time sample information with historical information, which is a good method for the real-time reliability assessment.
Keywords :
Bayes methods; hydraulic systems; mechanical engineering computing; parameter estimation; pumps; regression analysis; reliability; support vector machines; Bayes algorithm; SFHT; SVR; degradation parameter; hydraulic pump; online system reliability assessment; real-time reliability assessment; real-time sample information; small flow at high temperature; support vector regression; Data models; Degradation; Gaussian distribution; Real time systems; Reliability engineering; Vectors; SVR; bayes; performance degradation; real-time assessment; reliability;
Conference_Titel :
Quality, Reliability, Risk, Maintenance, and Safety Engineering (ICQR2MSE), 2012 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-0786-4
DOI :
10.1109/ICQR2MSE.2012.6246309