Title :
Optimal step-stress test under progressive type-I censoring
Author :
Gouno, Evans ; Sen, Ananda ; Balakrishnan, N.
Author_Institution :
Univ. of South Brittany, Vannes, France
Abstract :
We consider in this work a k-step-stress accelerated test with equal duration steps τ. Censoring is allowed at each change stress point iτ, i=1,...k. The problem of choosing the optimal τ is addressed using variance optimality as well as determinant-optimality criteria. We investigate in detail the case of progressively Type-I right censored data with a single stress variable.
Keywords :
life testing; maximum likelihood estimation; optimisation; probability; reliability; stress analysis; D-optimality; Type-1 right censored data; accelerated life testing; change-point; determinant-optimality criteria; optimal step-stress test; progressive Type-1censoring; stress variable; variance optimality; Distribution functions; Life estimation; Life testing; Manufacturing; Maximum likelihood estimation; Optimal scheduling; Probability density function; Prototypes; Sampling methods; Stress; Accelerated life testing; D-optimality; change-point; progressive censoring; variance optimality;
Journal_Title :
Reliability, IEEE Transactions on
DOI :
10.1109/TR.2004.833320
