Analysis of Degradation Data Using Robust Experimental Design

강건 실험계획법을 이용한 열화자료의 분석

  • 서순근 (동아대학교 산업시스템공학과) ;
  • 하천수 (동아대학교 산업시스템공학과)
  • Published : 2004.03.01

Abstract

The reliability of the product can be improved by making the product less sensitive to noises. Especially, it Is important to make products robust against various noise factors encountered in production and field environments. In this paper, the phenomenon of degradation assumes a simple random coefficient degradation model to present analysis procedures of degradation data for robust experimental design. To alleviate weak points of previous studies, such as Taguchi's, Wasserman's, and pseudo failure time methods, novel techniques for analysis of degradation data using the cross array that regards amount of degradation as a dynamic characteristic for time are proposed. Analysis approach for degradation data using robust experimental design are classified by assumptions on parametric or nonparametric degradation rate(or slope). Also, a simulation study demonstrates the superiority of proposed methods over some previous works.

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