실험계획법을 이용한 자동차 전장부품의 검증된 유한요소모델 구현

A reliable and practical finite element modeling technique to predict the lifetime of automotive electronics is important for engineers in reliability. In reliability evaluation on the automotive electronics, most studies rarely used finite element model verification process. The material properties and boundary conditions are very important model parameters in this process to assure the reliability of the automotive electronics. This study aims to develop a better and more accurate finite element model in order to predict fatigue life of the automotive electronics using Virtual Qualification lifetime assessment techniques. Also this paper presents a scheme for finding a main effect of control factors such as material properties and boundary conditions affecting on the finite element analysis results of the automotive elements using design of experiments (DOE). As a result, finite element model of the automotive electronics is verified by comparison of the results between finite element analysis and experiment.