Title: Prediction of noise from track systems

Authors: H. Zheng, X.M. Tan, Y.K. Koh

Addresses: Institute of High Performance Computing, 1 Science Park Road, #01-01 The Capricorn, Singapore Science Park II, 117528, Singapore. ' Institute of High Performance Computing, 1 Science Park Road, #01-01 The Capricorn, Singapore Science Park II, 117528, Singapore. ' Singapore Technologies Kinetics Ltd., 249, Jalan Boon Lay, 619523, Singapore

Abstract: A practical approach is presented for the prediction of noise level generated by a track system at the design stage of a tracked vehicle. Rayleigh|s surface integral is adopted for relating the acceleration of a track link chain in the time-domain to the radiated acoustic pressure of the exterior noise. The sound pressure levels of the noise generated by the vibrating track system are calculated in both time-domain and frequency-domain for the cases where the vehicle is moving forward on a paved road. A comparison with on-site measurements indicates that the developed predictive approach for the calculation of track system noise is accurate enough for industrial application.

Keywords: vehicle track systems; vehicle vibration; vehicle noise; modelling; noise prediction; tracked vehicles; acoustic pressure; sound pressure; paved roads.

DOI: 10.1504/IJVNV.2008.021897

International Journal of Vehicle Noise and Vibration, 2008 Vol.4 No.3, pp.235 - 246

Available online: 08 Dec 2008 *

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