Design & Manufacturing

  • 제17권1호
  • /
  • Pages.48-55
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  • 2023
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  • 2800-0323(pISSN)
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  • 2733-452X(eISSN)
한국금형공학회 (Korean Society of Die & Mold Engineering)
권호 표지

고강도 경량 48V MHEV 배터리 하우징 개발을 위한 구조시뮬레이션에 관한 연구

A Study on Structural Simulation for Development of High Strength and Lightweight 48V MHEV Battery Housing

  • 김용대 (한국생산기술연구원 금형성형연구부문) ;
  • 이정원 (한국생산기술연구원 금형성형연구부문) ;
  • 정의철 (한국생산기술연구원 금형성형연구부문) ;
  • 이성희 (한국생산기술연구원 금형성형연구부문)
  • Yong-Dae Kim (Department of Molding & Metal Forming R&D, Korea Institute of Industrial Technology) ;
  • Jeong-Won Lee (Department of Molding & Metal Forming R&D, Korea Institute of Industrial Technology) ;
  • Eui-Chul Jeong (Department of Molding & Metal Forming R&D, Korea Institute of Industrial Technology) ;
  • Sung-Hee Lee (Department of Molding & Metal Forming R&D, Korea Institute of Industrial Technology)
  • 투고 : 2023.03.14
  • 심사 : 2023.03.31
  • 발행 : 2023.03.31
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초록

In this study, on the structure simulation for manufacturing a high strength/light weight 48V battery housing for a mild hybrid vehicle was conducted. Compression analysis was performed in accordance with the international safety standards(ECE R100) for existing battery housings. The effect of plastic materials on compressive strength was analyzed. Three models of truss, honeycomb and grid rib for the battery housing were designed and the strength characteristics of the proposed models were analyzed through nonlinear buckling analysis. The effects of the previous existing rib, double-sided grid rib, double-sided honeycomb rib and double-sided grid rib with a subtractive draft for the upper cover on the compressive strength in each axial direction were examined. It was confirmed that the truss rib reinforcement of the battery housing was very effective compared to the existing model and it was also confirmed that the rib of the upper cover had no significant effect. In the results of individual 3-axis compression analysis, the compression load in the lateral long axis direction was the least and this result was found to be very important to achieve the overall goal in designing the battery housing. To reduce the weight of the presented battery housing model, the cell molding method was applied. It was confirmed that it was very effective in reducing injection pressure, clamping force and weight.

키워드

과제정보

본 연구는 2023년도 산업통상자원부 및 산업기술평가관리원(KEIT) 연구비 지원에 의한 연구임('20019244')

참고문헌

  1. T. Schmolke, D. Teutenberg, G. Meschut, "Development of a test method for investigating the leak tightness of hybrid joined battery housing connections," international Journal of Adhesion and Adhesive, Vol. 117, Part A, pp.1-9, 2022. https://doi.org/10.1016/j.ijadhadh.2022.103171
  2. C. C. Hohne, P. Blaess, S. Ilinzeer, P. Griesbaum, "New approach for electric vehicle composite battery housings: Electromagnetic shielding and flame retardancy of PUR/UP-based sheet moulding compound," Composite: Part A, Vol. 167, pp. 1-9, 2023. https://doi.org/10.1016/j.compositesa.2022.107404
  3. C. Kruger, S. Spohr, D. Merdivan, P. Urban, "Avoiding structural redundancies between the vehicle body and the battery housing based on a functional integration approach," Automotive and Engine Technology, Vol. 7, pp. 197-208, 2022. https://doi.org/10.1007/s41104-022-00106-8
  4. Y. I. Kwon, E. Lim, Y. S. Song, "Simulation of injection-compression molding for thin and large battery housing," Current Applied Physics, Vol. 18, pp. 1451-1457, 2018. https://doi.org/10.1016/j.cap.2018.08.017
  5. J. Baumeister, J. Weise, E. Hirtz, K. Hohne, J. Hohe, " Applications of Aluminum Hybrid Foam Sandwiches in Battery Housings for Electric Vehicles," Procedia Materials Science, Vol. 4, pp. 317-321, 2014. https://doi.org/10.1016/j.mspro.2014.07.565
  6. C. White, L. G. Swan, "Pack-level performance of electric vehicle batteries in second-life electricity grid energy services," Journal of Energy Storage, vol. 57, pp. 1-20, 2023. https://doi.org/10.1016/j.est.2022.106265
  7. H. J. Lee, Y. J. Jeong, D. E. Kim, "A study on strength reinforcement of one-sided reinforced hybrid laminates made of 22MnB5 and carbon fiber reinforced plastics," Design & Manufacturing, Vol. 16. No. 2, pp. 1-6, 2022.
  8. S. H. Kim and C. H. Park, "Direct impregnation of thermoplastic melt into flax textile reinforcement for semi-structural composite parts", Industrial Crops and Products, Vol. 95, pp. 651-663, 2017. https://doi.org/10.1016/j.indcrop.2016.11.034
  9. E. C. Jeon, K. H. Yoon, S. H. Lee, "A study on the improvement of impregnation on the surface of injection-molded thermoplastic woven carbon fabric composite," J. Korea Society of Die & Mold Engineering, Vol. 15, No. 3, pp. 39-44, 2021.