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Vibration and Noise Reduction Analysis of Snowplow’s GearBox Case Based on Modal Analysis
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Study has been conducted on how, where and why does excessive noise generate on the gear-box of the snowplow, and, measures for improvement have been presented. As well, analysis to the generation mechanism of vibration noise of gearbox and gears has been made, to find out the source
of the noise. Next, a precise model of the gearbox, built by using 3D modeling technology, was translated into finite element model to make the modal analysis. Through analyzing characteristics of each vibration mode, positions of the gearbox case on which a vibration is most likely to be
generated have been determined. To check the accuracy of theoretical calculation, vibration and noise tests were made to the gearbox. Specific measures for improvement were then put forward by combining results from both finite element analysis and experimental analysis. The comparison results
showed that: the improved gearbox case had a significant effect on noise reduction, and the goal of reducing vibration and noise was achieved.
American Scientific Publishers
Title: Vibration and Noise Reduction Analysis of Snowplow’s GearBox Case Based on Modal Analysis
Description:
Study has been conducted on how, where and why does excessive noise generate on the gear-box of the snowplow, and, measures for improvement have been presented.
As well, analysis to the generation mechanism of vibration noise of gearbox and gears has been made, to find out the source
of the noise.
Next, a precise model of the gearbox, built by using 3D modeling technology, was translated into finite element model to make the modal analysis.
Through analyzing characteristics of each vibration mode, positions of the gearbox case on which a vibration is most likely to be
generated have been determined.
To check the accuracy of theoretical calculation, vibration and noise tests were made to the gearbox.
Specific measures for improvement were then put forward by combining results from both finite element analysis and experimental analysis.
The comparison results
showed that: the improved gearbox case had a significant effect on noise reduction, and the goal of reducing vibration and noise was achieved.
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