Volume 8, Issue 4 (winter 2005)                   JCPP 2005, 8(4): 225-240 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

S. R. Hasan Beygi Bidgoli, B. Ghobadian, P. Nassiri, N. Kamalian. Investigation, Analysis and Presentation of Prediction Models of a Power Tiller Noise, Pulling a Trailer at Rural Asphalt Road. JCPP. 2005; 8 (4) :225-240
URL: http://jcpp.iut.ac.ir/article-1-316-en.html
Abstract:   (32819 Views)
In addition to farm operations, power tillers in Iran are also engaged in load and passenger transportation. Inspite of their noise and adverse effects on power tiller drivers and bystanders, they have not been adequatly investigated. The initial survey in the present investigation on a 13-hp power tiller at 2200 rpm engine speed revealed that its noise was 92 dB(A), compared to the standard limit of 85 dB(A) which is disappointing. The test site was prepared according to international standards and the noise signals emitted from the system were measured and analyzed in time and frequency domains for audio frequency range (20 – 20000 Hz). The results showed that the noise intensity was higher by 7.74 to 10.75 dB(A) for the microphone position at driver’s ear compared to the bystanders position and that the engine speed played a great role in noise generation for power tiller. This is because the noise increases up to 8.5 dB(A) with engine speed variations. Finally, the power tiller prediction models of sound pressure levels at driver’s ear and bystanders were determined using the experimental data.
Full-Text [PDF 314 kb]   (1840 Downloads)    
Type of Study: Research | Subject: General

Add your comments about this article : Your username or Email:
CAPTCHA

© 2019 All Rights Reserved | Isfahan University of Technology - Journal of Crop Production and Processing

Designed & Developed by : Yektaweb