31권 3호 227-238 2023 [한국자동차공학회 논문집 ]
| 제목 | 전기 자동차 냉각수 공급 모듈 시스템 기밀성능 해석에 관한 연구 |
|---|---|
| 분야 | 열유체 및 공조시스템(HVAC) |
| 언어 | Korean |
| 저자 | 김기수(현대위아), 이정선(현대위아), 김동철(현대위아), 송명의(현대위아), 조우연(현대위아) |
| Key Words | Coolant control hub modules system(냉각수 공급 모듈 시스템), Hyperelastic(초탄성), O-ring(오링), Reservoir tank(리저버 탱크), Sealing performance(기밀성능), Structural analysis(구조해석), Viscoelasticity(점탄성) |
| 초록 |
In this paper, the sealing performance of the reservoir tank of the coolant supply module under the thermal management system was studied by using CAE, which considers the hyperelastic and viscoelastic properties of the O-ring. The type of rubber used in this research is the EPDM rubber, which was modeled under the Parallel Rheological Frameworks. The material model was drawn from the Marlow model that used uniaxial tension test data, and the hyperelastic properties, Mullins effect, and permanent set properties were considered. Moreover, in the O-ring sealing analysis, the viscoelastic properties according to time change were applied to the model, and leakage was determined based on the result of the contact pressure. In the analysis, the change in the temperature of the system over time was considered as a major factor. An experiment was conducted to verify the proposed method of analysis, and its validity was verified after confirming the correlation between the FEA result and the experiment. An analysis of various factors that were estimated to cause O-ring leakage was performed, and, finally, a design to improve contact pressure was proposed and verified. Through the method proposed in this paper, it became possible to analyze the sealing performance of thermal management system products that were operating in complex environmental conditions. It is expected that the level of product development will further improve as various design elements, such as product cost reduction and weight reduction, can be reviewed. |
| 원문(PDF) | 다운로드 Journal Site |