Identification and Reduction of Booming Noise on a Motor Grader

Paper #:
  • 2011-01-1729

Published:
  • 2011-05-17
Citation:
Zhen, J., Pan, C., Jangale, A., and Salisbury, B., "Identification and Reduction of Booming Noise on a Motor Grader," SAE Technical Paper 2011-01-1729, 2011, https://doi.org/10.4271/2011-01-1729.
Pages:
7
Abstract:
NVH is gaining importance in the quality perception of off-highway machines' performance and operator comfort. Booming noise, a low frequency NVH phenomenon, can be a significant sound issue in a motor grader when it is used under certain operating conditions that cause low frequency excitations to the machine. In order to increase operator comfort by decreasing the noise levels and noise annoyance, both simulation and testing techniques were leveraged to reduce the booming noise of a motor grader. Simultaneous structural/acoustics simulations and experimental modal tests were performed to evaluate this phenomenon. The simulation models were validated using test results and then used to evaluate solutions to this noise problem. Further field tests confirmed the validity of these recommended solutions.
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