한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2004년도 추계학술대회논문집
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- Pages.999-1004
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- 2004
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- 1598-2548(pISSN)
다차원 스펙트럼 해석법을 이용한 자동차 공조시스템의 기여도분석
Coherent Analysis of HVAC Using the Multi-Dimensional Spectral Analysis
- 발행 : 2004.11.01
초록
In this study, we identify contribution of structure-borne-noise of vehicle HVAC system using Multi-Dimensional spectral analysis (MDSA) method. Firstly, to identify the applicability of MDSA method, the case of HVAC system was modeled with four input / single output system. The four inputs which is given vibration data is composed of blower, evaporator, heater and duct. The single output is noise data from driver's seat. When the blower motor is operating, we analyze the contributions of four input / single output. As a result of experiment, we identify efficiency of systems modeled with four input / single output through ordinary coherence function (OCF) and multiple coherence function (MCF).