Chassis dynamometer를 이용한 Road Noise 전달경로 분석에 관한 연구 = The Study of Road Noise Transfer Path Analysis through using chassis dynamometer

다국어 초록 (Multilingual Abstract)

This paper describes a method to analyze road noise transfer path through using chassis dynamometer. This chassis dynamometer was made only for road noise test condition so the relationship was good between the chassis dynamometer and outside rough road. To investigate the relationship between each suspension group and structure-borne road noise at the baseline test, multiple coherence analysis method was studied. The measurements are performed neutral coast down method from 120 to 20 KPH. And front and rear suspension group was measured separately so the analysis method was also performed separately. To analyze the structure-borne road noise Transfer path analysis (TPA) was used. In TPA method direct force method and matrix inversion method were combined. Using of strain gauge was studied for direct force method. And normally road noise TPA input data was acquired from PCA but this study not using PCA method but calculating reference related spectrum manually.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 시험 방법
• 3. TPA 분석
• 4. 결론
• 5. References