TY - GEN
T1 - A Bayesian accelerated degradation studies on nitrile rubber O-ring
AU - Wang, L. Z.
AU - Wang, X. H.
AU - Li, Y. X.
AU - Fan, W. H.
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014
Y1 - 2014
N2 - To research nitrile rubber O-rings' lifetime with less time and resources, and to reach a more convincing and statistic result, an accelerated degradation testing (ADT) is designed, which consists of a 90C pre-test and a step-stress test with 70 °C, 80 °C, 90 °C and 100 'C. Compression sets obtained from ADT are analyzed as degradation data, and degradation models were fitted to data using Bayesian method which easily accommodated uncertainties in the test. Then a relationship model between degradation model and temperature was built with support vector machines (SVM), so the step-stress data can be converted to data at 25°C and the O-rings' 25 °C degradation models were obtained. Finally, with these models, nitrile rubber O-rings' lifetimes were studied by Bayesian method, and the lifetime's distribution was obtained, which predicted that the nitrile rubber O-ring will reach 60% compression set by 6.2 years at 25°C based on 97.5% confidence bands.
AB - To research nitrile rubber O-rings' lifetime with less time and resources, and to reach a more convincing and statistic result, an accelerated degradation testing (ADT) is designed, which consists of a 90C pre-test and a step-stress test with 70 °C, 80 °C, 90 °C and 100 'C. Compression sets obtained from ADT are analyzed as degradation data, and degradation models were fitted to data using Bayesian method which easily accommodated uncertainties in the test. Then a relationship model between degradation model and temperature was built with support vector machines (SVM), so the step-stress data can be converted to data at 25°C and the O-rings' 25 °C degradation models were obtained. Finally, with these models, nitrile rubber O-rings' lifetimes were studied by Bayesian method, and the lifetime's distribution was obtained, which predicted that the nitrile rubber O-ring will reach 60% compression set by 6.2 years at 25°C based on 97.5% confidence bands.
KW - accelerated degradation testing
KW - Bayesian method
KW - degradation
KW - Nitrile rubber O-ring
UR - https://www.scopus.com/pages/publications/84988240342
U2 - 10.1109/IEEM.2014.7058646
DO - 10.1109/IEEM.2014.7058646
M3 - 会议稿件
AN - SCOPUS:84988240342
T3 - IEEE International Conference on Industrial Engineering and Engineering Management
SP - 292
EP - 296
BT - IEEM 2014 - 2014 IEEE International Conference on Industrial Engineering and Engineering Management
PB - IEEE Computer Society
T2 - 2014 IEEE International Conference on Industrial Engineering and Engineering Management, IEEM 2014
Y2 - 9 December 2014 through 12 December 2014
ER -