Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)
- Volume 9 Issue 1
- /
- Pages.13-28
- /
- 2009
- /
- 1738-9895(pISSN)
- /
- 2733-8320(eISSN)
Optimal Degradation Experimental Design in Non-Linear Random Coefficients Models
비선형 확률계수모형을 고려한 최적 열화시험 설계
- Kim, Seong-Joon (Hanyang University Department of Industrial Engineering) ;
-
Bae, Suk-Joo
(Hanyang University Department of Industrial Engineering)
- Published : 2009.03.24
Abstract
In this paper we propose a method for designing optimum degradation test based on nonlinear random-coefficients models. We use the approximated expression of the Fisher information matrix for nonlinear random-coefficients models. We apply the simplex algorithm to the inverse of the determinant of Fisher information matrix to satisfy the D-optimal criterion. By comparison of the results from PDP degradation data, we suggest a general guideline to obtain optimum experimental design for determining inspection intervals and number of samples in degradation testing.