MyJournals Home  

RSS FeedsIJERPH, Vol. 16, Pages 999: A Study on Noise Reduction of Gear Pumps of Wheel Loaders Based on the ICA Model (International Journal of Environmental Research and Public Health)

 
 

20 march 2019 06:04:06

 
IJERPH, Vol. 16, Pages 999: A Study on Noise Reduction of Gear Pumps of Wheel Loaders Based on the ICA Model (International Journal of Environmental Research and Public Health)
 




In order to reduce the noise level of wheel loaders caused by gear pumps and realize environmentally sustainable development, the noise generation mechanism of a gear pump was studied, and the influence of flow pulsation and gear impact on noise was analyzed. In order to reduce the interference of other noise sources on the noise level of the gear pump, a noise test rig was established. The mixed noise signals obtained from the rig test were separated using the ICA model. The ICA model includes the following algorithms: The fast Fourier transform (FFT), independent component analysis (ICA) and inverse fast Fourier transform (IFFT). Some theories about the influence of the teeth number and teeth profile on noise were analyzed by theory and simulation. A noise reduction strategy was proposed by increasing the teeth numbers and modifying the teeth profile of the gear pump. The tests results showed that the noise values of the external and the driver’s ear of the wheel loader were reduced to 1 and 2.2 dB (A), respectively. This proves the effectiveness of the optimization scheme of gear pump noise reduction.


Del.icio.us Digg Facebook Google StumbleUpon Twitter
 
35 viewsCategory: Medicine, Pathology, Toxicology
 
IJERPH, Vol. 16, Pages 998: Environmental Justice in Industrially Contaminated Sites. A Review of Scientific Evidence in the WHO European Region (International Journal of Environmental Research and Public Health)
IJERPH, Vol. 16, Pages 1005: Good Practices in Home Kitchens: Construction and Validation of an Instrument for Household Food-Borne Disease Assessment and Prevention (International Journal of Environmental Research and Public Health)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Toxicology

Use these buttons to bookmark us:
Del.icio.us Digg Facebook Google StumbleUpon Twitter


Valid HTML 4.01 Transitional
Copyright © 2008 - 2019 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Travel Photos Nachrichten Indigonet Finances Leer Mandarijn