The blocked force from the electric vehicle compressor is transmitted through the mount to the body side, serving as a primary source of body vibration during air conditioner operation at idle. Accordingly, a method is required during the compressor development stage to quantitatively evaluate the blocked force and analyze its influence for each transmission path. In this study, the blocked force at the outlet of an electric compressor was measured, and a test model was constructed to predict the response of the vehicle body using the Frequency-Based Substructuring(FBS) method. The 6-DOF dynamic stiffness of the bushing up to 500 Hz, not measurable with the elastomer, was successfully obtained using the inverse substructuring(IS) method. Finally, the proposed method was validated by the close match between predicted and measured body vibrations for both conventional and low dynamic stiffness bushings.

Abstract
1. 서 론
2. 전달경로
    2.1 전달경로 분석
    2.2 차단력 기반 전달경로 해석
    2.3 주파수기반 부분구조합성법
3. 시험 적용
    3.1 실험조건
    3.2 차단력 분석
4. 부싱동강성 변화에 따른 진동응답예측
    4.1 주파수기반 부분구조합성을 위한 모 델링
    4.2 동강성 측정
    4.2 FBS기법을 이용한 진동응답 예측결과
5. 결 론
References

• 서세훈 (Graduate School of Mechanical Engineering, Inje University) | S. H. Seo
• 이현민(Graduate School of Mechanical Engineering, Inje University) | H. M. Lee
• 김흥섭(Professor, Dept. of Mechanical & Electric Automotive Engineering, Inje University) | H. S. Kim Corresponding author