| 제목 |
강과 Aramid/phenol 복합재로 구성된 자동차 변속기 기어의 진동소음 특성 |
| 분야 |
연료 및 윤활유/연비 |
| 언어 |
Korean |
| 저자 |
김현웅(국민대학교), 김현준(현대자동차), 김철(경북대학교), 김상현(경창산업), 김봉준(경창산업), 이수정(경창산업), 임채홍(현대자동차), 이광진(경창산업) |
| Key Words |
Composite gear(복합재 기어), Car transmission(변속기), Noise(소음), Vibration(진동), Kevlar/phenol (케블라/페놀 복합재) |
| 초록 |
Hybrid gears made of steel and fiber-reinforced polymeric composite material are recently attracting electric vehicle designers’ attention due to their possible advantages such as lightweight and lessened transfer of noise and vibration for automotive transmissions. Composite material may be placed in-between the steel teeth and hub regions in the radial direction. The partial usage of polymeric composite material for a gear can reduce the transmissibility of vibration from teeth to the hub as well as the weight of the gear-train. Using the finite element and boundary element methods, vibration and noise analyses have been performed in order to calculate SPL (sound pressure level) for pure steel and hybrid gears, separately. At specified points of a tooth and a hub, the changes in SPL are computed and are compared to check how effective the polymeric composite region is. The reduction in SPL of the hybrid gear is observed by comparing to that of pure steel gear. To minimize weight and vibration of the hybrid gear, design optimization is applied by considering both vibrational characteristics and fatigue strength. |
| 원문(PDF) |
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