Title: A numerical structural-acoustic approach to analysis of interior booming noise and noise reduction in an all-terrain tractor cabin

Authors: Liming Dai, Ji Cao

Addresses: Mathematics and Physics, North China Electric Power University, Beijing, 102206, P.R. China; Industrial System Engineering, University of Regina, Regina, Saskatchewan S4S 0A2, Canada. ' ATCO Noise Management Ltd., 1243 McKnight Blvd. N.E., Calgary, Alberta T2E 5T1, Canada

Abstract: The booming noise in an all-terrain tractor cabin is studied in this research via a numerical structural-acoustic approach. Cavity acoustic resonances of the cabin are evaluated, and the acoustic resonant frequencies are identified and quantified in the research. The noise level inside the cabin is determined, and the frequencies characterised by peak noise levels within the booming noise frequency range are identified. The influences of sound absorption, structural damping, added mass and structural stiffener on the acoustic response of the cabin are quantified. A discussion on the measures to control the booming noise inside the cabin is also provided.

Keywords: booming noise; finite element analysis; FEA; numerical simulation; structure-borne noise; cavity acoustic resonances; NVH; noise reduction; all-terrain tractors; tractor cabin; vehicle noise; vehicle vibration; sound absorption; structural damping.

DOI: 10.1504/IJVNV.2007.016396

International Journal of Vehicle Noise and Vibration, 2007 Vol.3 No.4, pp.317 - 338

Published online: 26 Dec 2007 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article