A Study Battery System for Electric Vehicle Body Design through Structural Simulation

Jae-Woong Lee

doi:10.22680/kasa2026.18.1.134

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2026 Vol.18, Issue 1 Preview Page

A Study Battery System for Electric Vehicle Body Design through Structural Simulation 구조해석을 통한 전기자동차 차체 설계를 위한 배터리 시스템에 관한 연구

31 March 2026. pp. 134-140

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Abstract

In the case of electric vehicles, the motor system can replace the combustion engine and provides an environmentally sustainable and very attractive power source. However, due to the low power performance of the motor and battery, the weight of the electric vehicle increases significantly to increase the efficiency. In this study, a stiffness analysis was performed to evaluate the safety due to the increased weight of the battery-mounted parts. For this purpose, a CAE (computer-aided engineering) simulation was performed on the entire vehicle (Metro by Geo Co. = base model) model. After the dynamic stiffness analysis, a stiffness enhancement design was proposed to evaluate whether the stiffness of the surrounding structure is safe when the battery is mounted, and a design change idea was proposed to improve the stiffness of the base model. Based on this, a new floor structure was proposed to mount the battery on the vehicle. The new concept model suggests a new design direction as an integrated BIW (body in white) that can easily replace a discharged battery with a newly charged battery, which can be helpful for the future design of advanced electric vehicles.

Keywords

Electric vehicle(전기자동차)

Motor(모터)

Battery(배터리)

Safety(안전성)

Light-weight design(경량설계)

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Information

Publisher :Korean Auto-vehicle Safety Association
Publisher(Ko) :한국자동차모빌리티안전학회
Journal Title :Journal of Auto-vehicle Safety Association
Journal Title(Ko) :자동차안전학회지
Volume : 18
No :1
Pages :134-140
Received Date : 2026-01-28
Revised Date : 2026-02-18
Accepted Date : 2026-02-23
DOI :https://doi.org/10.22680/kasa2026.18.1.134

Journal of Auto-vehicle Safety Association ISSN:2005-9396(Print) 자동차안전학회지

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