Designing a degradation test sampling plan based on Wiener process

Abstract

When a batch of goods is received downstream in addition to full inspection and direct acceptance sampling inspection can also be used to perform the judgement You can use the sampling plan to perform the corresponding test and determine whether the lot should be rejected by the estimated value after the test and its acceptance criteria When the product is highly reliable it used to be a service life test but currently the information that can be recorded even with acceleration technology is very limited Therefore instead of using degradation tests Degradation test is a change in quality characteristics that record during testing For example recording the brightness degradation of the LED or the resistance degradation of the cable In view of the above situation this study proposes a degradation tests sampling plan based on Wiener degradation process This sampling plan subject to the total cost of performing degradation testing and the sampling risk including producer’s risk and consumer’s risk Minimize the variance of the estimation of the drift rate for deciding sampling number recoding times and acceptance criteria Finally this study will use Zhai et al (2016) to demonstrate the model and perform sensitivity analysis

Date of Award	2020
Original language	English
Supervisor	Cheng-Hung Hu (Supervisor)