연료전지용 공기공급기의 케이스 변형량 해석 및 개선설계
Deformation Analysis and Design Modification of the case of the air blower for fuel cell
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The air blowers for fuel cell electric vehicle usually have big difference between inlet and outlet pressure. When the casing of the air blowers is designed, the stress analysis is required. (Approximately Inlet pressure is 0.5bar and outlet pressure is 2bar.) Gap distance between the casing and the impeller is 0.3mm. Therefore, if the amount of maximum deformation of casing is larger than 0.3mm, impeller crashed the casing. In order to avoid crashing, both the thickness and number of rims are changed and carried out simulations on each cases.
Abstract
The air blowers for fuel cell electric vehicle usually have big difference between inlet and outlet pressure. When the casing of the air blowers is designed, the stress analysis is required. (Approximately Inlet pressure is 0.5bar and outlet pressure is 2bar.) Gap distance between the casing and the impeller is 0.3mm. Therefore, if the amount of maximum deformation of casing is larger than 0.3mm, impeller crashed the casing. In order to avoid crashing, both the thickness and number of rims are changed and carried out simulations on each cases.
참고문헌 (5)
- Yongseon Park, "Hydrogen Fuel Cell Car System Operation Device Development", Fluid Machinery Journal, 9(2), pp.69~73 (2006)
- Yongbok Lee, "Air Supply of The FEM Fuel Cell", Fluid Machinery Journal, 9(2), pp.59~63 (2006)
- 이상근, "연료전지 시스템 성능 개선 및 제어에 관한 실험적 연구", 한국기계기술학회지, 12(3), pp.33~38 (2010), 한국기계기술학회
- Woojune Kim, "Aerodynamics Design of Air Supply for Fuel Cells Vehicles", The Korean Society for New and Renewable Energy, pp.197~200 (2007)
- 정성필, "인휠 시스템용 유성 기어 감속기의 응력 해석 및 개선 설계", 한국정밀공학회지, 28(6), pp.732~737 (2011), 한국정밀공학회