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채기상(Ki-Sang Chae),최정순(Jeongsoon Choi),염성우(Sung Woo Yeom),이승(Seung Lee),남궁재균(Jaekyun Namgung) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
In order to develop the vehicle insulation performance efficiently in the view point of weight and cost, it is necessary to perform detailed studies for the insulation performances of a current production vehicle’s major panels in the predevelopment stage of a successor vehicle. In this study, the insulation performances of dash and floor system are experimentally studied for a sedan vehicle which is sold in the market (production vehicle). A window method is applied in order to estimate the sub-regional insulation performances and the individual insulation performances of dash pass-throughs. The weak paths of dash and floor are checked one by one by using the window method and sound intensity maps. Simulation models are developed based on the above experimental results, by which the insulation performance of each system could be predicted precisely. Finally, design studies are performed using the simulation models for a successor vehicle development.