| 제목 |
차량 시트의 해석기반 BSR 소음 저감 설계 방안 연구 |
| 분야 |
진동ㆍ소음 |
| 언어 |
Korean |
| 저자 |
김소울(고등기술연구원), 고동신(고등기술연구원), 이현주(고등기술연구원), 남재현(고등기술연구원), 이재환(다스) |
| Key Words |
BSR(Buzz, Squeak, Rattle, 이음), PSD(파워스펙트럼밀도), FRF(주파수응답함수), Random excitation(임의 가진), Acceleration level(가속도 레벨), Contact force(접촉하중) |
| 초록 |
BSR(Buzz, Squeak, Rattle) noise is a quantitative characteristic of automobiles caused by clearance and relative motion of parts. It is difficult to predict beforehand since this BSR problem occurred at the completion stage of product development, resulting in heavy cost of the design process. The aim of this study is to develop a method of predicting BSR noise during the design process through numerical analysis. This study suggests the method of reducing noise by studying the characteristics of relative motion among parts. Numerically, the time integration method is very effective in locating the source of BSR noise. Likewise, this simulation, which is based on BSR analysis, can be used to analyze the mechanism of noise production between contact parts. Hence, it can be used to improve noise performance efficiently. |
| 원문(PDF) |
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