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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32 , No. 5

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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 32, No. 5, pp. 283-288
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Oct 2023
Received 28 Aug 2023 Revised 03 Oct 2023 Accepted 06 Oct 2023
DOI: https://doi.org/10.7735/ksmte.2023.32.5.283
반응표면법을 이용한 상용 수소 전기 대형 트럭 배터리 캐리어 경량화 모델 설계의 제안
황순재^a ; 오민성^b ; 설우철^c ; 유문규^c ; 정영구^d ; 홍석무^b^{, e}^{, *}





Design of a Lightweight Model for the Battery Carrier of a Commercial Large Electric Truck Using the Response Surface Method
Soon Jae Hwang^a ; Min Seong Oh^b ; Ou Chul Sul^c ; Mun Gyu Yoo^c ; Young Gu Chung^d ; Seok moo Hong^b^{, e}^{, *}
aDepartment of Future Convergence Engineering, Kongju National University
bDepartment of Future Automotive Engineering, Kongju National University
cWonhyo Co.
dGonggam Gonghak Co. Ltd.
eInstitute of Green Car Technology
Correspondence to : ^*Tel.: +82-41-521-9268 E-mail address: smhong@kongju.ac.kr (Seok moo Hong).



Funding Information ▼ Ministry of Education National Research Foundation of Korea 2021RIS-004

Abstract

This study optimized the shape of the battery carrier to reduce weight in response to the increasing battery capacity required for commercial hydrogen electric heavy trucks. The Response Surface Method (RSM) was utilized to optimize the frame design while maintaining the same stress level as the conventional frame model. An optimal design was realized by substitute the material of battery frame from steel to aluminum and in addition reinforcing it with glass fiber sheet molding compounds (GF-SMC). Four design variables were identified to adjust the frame thickness to reduce the frame weight. The objective function was set as minimizing the weight of the battery carrier while maintaining stress levels equivalent to the conventional frame model using steel. The predicting accuracy from RSM shows a good result as 98%. Consequently, the proposed model achieved a weight reduction of 29.7% compared to the conventional model at the same stress level.


Keywords: Design variable, Equivalent stress, Finite element analysis, Battery carrier, Weight reduction

Acknowledgments

본 과제(결과물)는 2023년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지혁혁신 사업의 결과 입니다(2021RIS-004).

References


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Soon Jae Hwang

Master’s Program in the Department of Future Convergence Engineering at Kongju National University. His interest is FEA.

E-mail: krsoonjae@naver.com

Min Seong Oh

Undergraduate program of the Future Automobile Engineering Department at Kongju National University. His interest is Optimizing, FEA.

E-mail: mslab13@naver.com

Ou Chul Sul

CEO in the Wonhyo Co.. His interest is Machine.

E-mail: bagussurfer@leikokorea.co.kr

Mun Gyu Yoo

Senior Researcher in the Wonhyo Co.. His interest is Machine.

E-mail: rmkyoo@leikokorea.co.kr

Young Gu Chung

Director of Research Institute in the Gonggam Gonghak Co. Ltd.. His interest is Machine, FEA.

E-mail: young@swstech.co.kr

Seok moo Hong

Professor of Future Automobile Engineering Department at Kongju National University, Institute of Green Car Technology. His interest is Metal Sheet Forming and Forging, FEA, Optimizing.

E-mail: smhong@kongju.ac.kr