Study on Noise Control of Fan with Air Suction

Abstract:

Fan is a pneumatic device in the 4ZTL-1800 combine harvester threshing prior to cutting. Based on the prophase search result that fan noise is highest when fan rotates at 1200r/min, in order to decrease noise of it, sigle-microperferated-panel muffler, double-microperferated-panel muffler and interposition muffler were designed and tested. The results show that double-microperferated-panel muffler is best and sound power level of fan is decreased 11dB, and that interposition muffler is better, and that sigle-microperferated-panel muffler is worst to descrease fan noise. Through contrast on transmission power loss of different mufflers, cone-shaped double-microperferated-panel muffler is verified to be best for noise control of fan.

• Periodical: Applied Mechanics and Materials (Volumes 138-139)
• Pages: 391-394
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.138-139.391
• Online since: November 2011
• Authors: Li Jun Wang, Zhi Yang Pan
• Keywords: Air Suction, Combine Harvester, Fan, Noise, Threshing Prior to Cutting

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