# 자동차용(自動車用) 충격흡수기(衝擊吸收器)의 해석(解析) 및 품질향상(品質向上)을 위(爲)한 설계방안(設計方案)

• Kim, Hyung-Sup (Department of Mechanical Engineering, A Jou University) ;
• Lee, Hwa-Suk (National Industrial Research Institute) ;
• Oh, Hung-Kuk (Department of Mechanical Engineering, A Jou University)
• 김형섭 (아주대학교 공과대학 기계공학과) ;
• 이화석 (국립공업시험원) ;
• 오흥국 (아주대학교 공과대학 기계공학과)
• Published : 1987.09.30
• 12 3

#### Abstract

A study has been made of the damping force phenomena of the shockabsorber for automobile. The main results obtained are as follows; 1) We can neglect friction loss between cylinder and piston, as it is very small compared to other damping force. 2) Damping force due to coil spring and disc valve shows comparatively stable at various piston speed and oil temperature. 3) Theoretical and experimental values are well agreed on relatively low piston speed. 4) Theoretical value on piston speed of 600mm/sec, 900mm/sec at oil temperature $20^{\circ}C$, $40^{\circ}C$, $60^{\circ}C$ and $80^{\circ}C$ is about 82% of experimental value. 5) Theretical value at oil temperature $-20^{\circ}C$, $0^{\circ}C$ is about 67% of experimental value.

#### Acknowledgement

Supported by : 문교부