An Experimental Study on The Coupling Path and Acoustic Modal Characteristics of a Coupled System of Passenger Compartment and Trunk

차실-트렁크 연성계의 연성경로 및 음향모드 특성에 관한 실험적 연구

  • Published : 2001.08.01


This study identifies the major coupling path by examining the variation of the coupled acoustic modal frequencies and modes. A 1/2-size acryl compartment model is designed and manufactured for the measurement and analysis of coupled acoustic modes. Due to acoustic coupling, a new acoustic mode appears in a low frequency range. This coupling affects only longitudinal acoustic modes of compartment. Experimental result shows that the package tray holes contribute to the coupling much more than the back seat and hole size is an important design factor to control low frequency acoustic modes in the coupled system.


Passenger Compartment;Trunk;Coupled System;Coupled Acoustic Modes;Package Tray Holes


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