TY - GEN
T1 - A reliability evaluation method based on Gamma process with ADT
AU - Zhao, Xinlei
AU - Wang, Lizhi
AU - Wang, Xiaohong
AU - Lu, Dawei
AU - Jiang, Tongmin
N1 - Publisher Copyright:
© 2017 Taylor & Francis Group, London.
PY - 2017
Y1 - 2017
N2 - Currently, evaluating the reliability of high-reliability equipment is challenging. Accelerated degradation testing is used widely for high reliability equipment. In this paper, Gamma process is taken as the degradation process. Then a suitable accelerated model is determined. After obtaining accelerated factors between stresses, the transformation of ADT data under different stresses can be achieved. With prior conjugate distribution, parameters of Gamma process are obtained. Degradation rate relates to accelerated model and degradation model, and it can be gained by the shape parameter in Gamma process, then Least Square Fitting method is used to calculate parameters in accelerated model. As a result, parameters of Gamma process under normal stress is obtained, and the reliability of high-reliability equipment can be evaluated accurately. Finally, a simulation is performed and results demonstrate the proposed method is effective.
AB - Currently, evaluating the reliability of high-reliability equipment is challenging. Accelerated degradation testing is used widely for high reliability equipment. In this paper, Gamma process is taken as the degradation process. Then a suitable accelerated model is determined. After obtaining accelerated factors between stresses, the transformation of ADT data under different stresses can be achieved. With prior conjugate distribution, parameters of Gamma process are obtained. Degradation rate relates to accelerated model and degradation model, and it can be gained by the shape parameter in Gamma process, then Least Square Fitting method is used to calculate parameters in accelerated model. As a result, parameters of Gamma process under normal stress is obtained, and the reliability of high-reliability equipment can be evaluated accurately. Finally, a simulation is performed and results demonstrate the proposed method is effective.
UR - https://www.scopus.com/pages/publications/85061406598
U2 - 10.1201/9781315210469-443
DO - 10.1201/9781315210469-443
M3 - 会议稿件
AN - SCOPUS:85061406598
SN - 9781138629370
T3 - Safety and Reliability - Theory and Applications - Proceedings of the 27th European Safety and Reliability Conference, ESREL 2017
SP - 3513
EP - 3518
BT - Safety and Reliability – Theory and Applications - Proceedings of the 27th European Safety and Reliability Conference, ESREL 2017
A2 - Cepin, Marko
A2 - Briš, Radim
PB - CRC Press/Balkema
T2 - 27th European Safety and Reliability Conference, ESREL 2017
Y2 - 18 June 2017 through 22 June 2017
ER -