Volume 3, Number 2 (8-2013)                   JHSW 2013, 3(2): 35-46 | Back to browse issues page


XML Persian Abstract Print


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

Nassiri P, Ali Mohammadi I, Beheshti M H, Azam K. Hand-Arm vibration assessment among tiller operator. JHSW. 2013; 3 (2) :35-46
URL: http://jhsw.tums.ac.ir/article-1-5063-en.html

1- Professor Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences
2- 2Assistant Professor Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences
3- Msc Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences , beheshtihasan8@gmail.com
4- Assistant Professor epartment of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences
Abstract:   (6554 Views)

Introduction: The power tiller is a multipurpose hand tractor designed primarily for rotary tilling and other farm operations. Vibration, transmitted from the handles of the tiller to the operators’ body, causes many injuries such as, pain, musculoskeletal disorders and white finger syndrome. The aim of this study was to evaluate the hand-arm vibration exposure in the operators of tiller model HT900, as the most frequently used model of tillers.

.

Material and Method: In this study, 40 operators tiller of model HT900 in the city of Kashmar, Khorasan Razavi were examined. Hand-arm vibration measurement was done according to ISO 5349-1 and ISO 5349-2 in three different modes including, static and neutral (mode), transition to the ground mode and plowing the land mode in different gears. In order to measure the vibrations, human response vibration meter of B and K model 2512 was utilized.

.

Result: Results of the present study indicated that in all measured situations, exposure to hand arm vibration was higher than the standard limit suggested by Iranian occupational health committee and there was risk of vibration-induced disorders. The maximum exposure to vibration is in plowing ground. Exposure to hand arm vibration in three modes of plowing, transmission and natural, were respectively 16.95, 14.16 and 8.65 meters per second squared. Additionally, in all situations, vibration exposure was highest in the X-axis in comparison with Z- and Y-axes.

.

Conclusion: This study emphasizes on the need to provide intervention and controlling and managing strategies in order to eliminate or reduce vibration transmitted from tiller to operators hand and arm and also prevent to serious problems including neurovascular disorders, discomfort and white finger syndrome. Meanwhile, more studies are necessary to identify the sources of vibration on different models of tiller.

Full-Text [PDF 477 kb]   (2187 Downloads)    
Type of Study: Research | Subject: Special
Received: 2013/12/10 | Accepted: 2013/12/10 | Published: 2013/12/10

Add your comments about this article : Your username or email:
Write the security code in the box

Send email to the article author


© 2017 All Rights Reserved | Health and Safety at Work

Designed & Developed by : Yektaweb