A Study on Noise Test and Control of Combine Harvester

Abstract:

Faced at the present situation that the noise level of most combine harvesters was generally higher than the national standard limit in our country, experiments carried out to reduce the driver's ear noise, which chosen 4LZ-5.0E type tracked combine harvester as experimental prototype. The method of noise sources separation was used to test the whole machine on different working conditions. Based on the contribution analysis to obtain the contribution of main working parts for the driver's ear noise and identify the main noise sources. Through designing the reasonable structure of sound insulation for engine and installing the sound insulation plate on the left of driver, testing results showed that the noise of the driver's ear was reduced 3.1dB (A).

• Periodical: Advanced Materials Research (Volumes 971-973)
• Pages: 324-328
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.971-973.324
• Online since: June 2014
• Authors: Yao Ming Li*, Pan Sun
• Keywords: Combine Harvester, Contribution Analysis, Noise Control, Noise Sources Separation

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