군용 트럭의 도어 새깅에 관한 파라메터 연구

To meet customer's need for higher fuel economy, carmakers have developed vehicle designs to decrease weight, reduce manufacturing costs, and improve performances. Recently, with the advanced computer technology, it is possible to estimate the door performances at an early design stage. In this paper, a parameter study and design of experiment to improve the door sagging of a military truck with bulletproof glass are presented. For checking the participation of each part on door sagging, a structural design sensitivity analysis is performed. Then, using a commercial finite element analysis software MSC/NASTRAN. a design of experiment is carried out to determine thicknesses of each part satisfying door sagging constraints.