Author(s)

H. Sayyaadi & M. Abedi

Abstract

Acoustical identification of passenger cabin of vehicles H. Sayyaadi & M. Abedi Mech. Eng. Dept., Sharif University of Technology, Tehran, Iran Abstract Sound in the interior cabin of cars has been of the great importance nowadays. The automotive industry has long been fiercely competitive with different vendors attempting to produce vehicles with better performance, handling and fuel efficiency. The competition of the automotive industries today is directed on the reduction of noise in the cars cabin. This paper proposes a new method for noise studies in the cabin, which frequencies of excitation are lower than 200 Hz. The topics, which are covered in the paper, include the computation of the structural and acoustic mode shapes, resonant frequencies of the passenger compartment, coupling between structure and acoustic effects, and forced vibration analysis. In this research work noises, generated by cabin's panels, will be identified and then those, which are main sources of noise generators w

Keywords