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배철용(Bae, Chul-Yong),김찬중(Kim, Chan-Jung),권성진(Kwon, Seong-Jin),이봉현(Lee, Bong-Hyun),장운성(Jang, Woon-Sung),이준우(Lee, Joon-Woo) 한국소음진동공학회 2007 한국소음진동공학회 논문집 Vol.17 No.11
This study presents the design improvement process for door module. Its objective evades the resonance generated at module plate due to the operation of window regulator motor. For this study, the design improvement process is composed of experimental methods having three steps. First step is modal analysis at door assembly status for acquisition of dynamic characteristics which are modal frequency and damping. Second step is a vibration experiment to get the test mode considered an efficiency of window regulator motor. Last step is a vibration measurement by the form of $6{\times}6$ array on module plate. A vibration measurement of $6{\times}6$ array form can be got to three analysis results which are a transfer path of vibration using cross correlation function, a vibration map using OA level and a contribution by frequency band using coherent output power spectrum on module plate. These results are applied to SDM(structural dynamic modification) for design improvement to get around the resonance on module plate by the excitation of window regulator motor.
배철용(Bae, Chul-Yong),김완수(Kim, Wan-Su),김찬중(Kim, Chan-Jung),이봉현(Lee, Bong-Hyun),장운성(Jang, Woon-Sung),모유철(Mo, Yu-Chul) 한국소음진동공학회 2007 한국소음진동공학회 논문집 Vol.17 No.9
Currently, automotive industries improve the vehicle performance and reduce the development period of vehicle using each module part for the high quality and performance of vehicles. However each component part doesn't generate the noise and vibration problems, sometime these problems are generated on the assembly status between vehicle chassis frame and each module part. On this study, in order to analysis the dynamic characteristics of a shield door module that is a typical module part of vehicles, the acquisition and evaluation process about the vibration and noise of shield door module is developed. Also the possibility to apply to shield door module of the developed process is verified by the comparison with the dynamic characteristics between plastic and steel module plate.