| 제목 |
자동차용 웨더스트립의 영구변형 예측 |
| 분야 |
차체 및 구조 안전 |
| 언어 |
Korean |
| 저자 |
박준철(현대자동차), 오정석(현대자동차), 김헌영(강원대학교), 문형일(강원대학교), 민병권(현대자동차) |
| Key Words |
Permanent deformation(영구 변형), Weather strip(웨더스트립), Viscoelastic(점탄성), Creep(크리프), Prony series(프로니 시리즈), Finite element analysis(유한 요소 해석) |
| 초록 |
The automotive weather strip has functions of isolating of water, dust, noise and vibration from outside. To achieve good sealing performance, weather strip should be designed to have the high contact force and wide contact area. However, these design causes excessive permanent deformation of weather strip. The causes of permanent deformation is generally explained to be the chemical material detrioration and physical variation and cyclic loading, etc. This paper introduces a numerical method to predict the permanent deformation using the time dependent viscoelastic model which is represented by Prony series in ABAQUS. Uniaxial tension and creep tests were conducted to obtain the material data. And the lab. test for the permanent deformation was accelerated during shorter time, 300 hours. The permanent deformation of weather strip was successfully predicted under the different loading conditions and different section shapes using the suggested numerical process. |
| 원문(PDF) |
다운로드
|
