This study presents the results of compression, drop impact, and vibration durability analyses conducted to evaluate the mechanical reliability of Battery Pack Cases (BPCs) in electric vehicle (EV) systems. BPCs are essential structural components that must endure compressive loads, impact forces, and vibrational fatigue. Finite Element Analysis (FEA) was applied to a representative BPC model to assess deformation, impact resistance, and vibration endurance. The results indicate that the BPC maintained integrity within yield strength limits under compressive loading and effectively absorbed energy under drop impact. Furthermore, Power Spectral Density (PSD) analysis identified stress concentration regions, providing insights for structural optimization. Overall, the findings support the development of lightweight and reliable BPC designs for advanced EV applications.

Abstract
1. 서 론
2. 유한요소해석 기반 EV BPC의성능 평가
    2.1 낙하 해석을 통한 하부 충돌 시뮬레이션
    2.2 압축 해석을 통한 BPC 강성 시뮬레이션
    2.3 PSD 데이터를 활용한 진동 내구 해석
3. 유한요소해석 결과
    3.1 낙하 해석 결과
    3.2 압축 해석 결과
    3.3 진동 내구 해석 결과
4. 결 론
후 기
References

• 김현수(School of Mechanical Engineering, Pusan National University, Jinju center, Dongnam Technology Application Division, Korea Institute of Industrial Technology) | Hyun Soo Kim
• 조민구(School of Mechanical Engineering, Pusan National University, Jinju center, Dongnam Technology Application Division, Korea Institute of Industrial Technology) | Mingoo Cho
• 이훈희(Jinju center, Dongnam Technology Application Division, Korea Institute of Industrial Technology) | Hoon-Hee Lee
• 김지훈(School of Mechanical Engineering, Pusan National University) | Ji Hoon Kim Corresponding author
• 박정열(Smart Forming Process Group, Korea Institute of Industrial Technology) | Jeong Yeol Park
• 지창욱(Smart Forming Process Group, Korea Institute of Industrial Technology) | Changwook Ji
• 강성욱(Department of Smart Ocean Mobility Engineering, Changwon National University) | Sungwook Kang