Browse > Article
http://dx.doi.org/10.5307/JBE.2008.33.3.151

Evaluation of Ride Vibrations of Agricultural Tractors  

Kim, H.J. (Dept. of Biosysems and Biomaterials Science and Engineering, and Research Institute for Agriculture and Life Sciences, Seoul National University)
Kim, K.U. (Dept. of Biosysems and Biomaterials Science and Engineering, and Research Institute for Agriculture and Life Sciences, Seoul National University)
Publication Information
Journal of Biosystems Engineering / v.33, no.3, 2008 , pp. 151-156 More about this Journal
Abstract
This study was conducted to evaluate ride vibrations experienced by tractor operators during plowing, rotovating, and transporting operations in Korea. Field data of ride vibrations were taken at the operator-seat interface from 49 tractors and analyzed on the basis of ISO 2631-1 and EU Directive 2002/44. Of the measured ride vibrations 15.4% in the plowing and 12.5% in farm road transport exceeded the 8-hour fatigue decreased proficiency boundary in the fore and aft directions at frequencies from 1 to 5 Hz. 93.9% exceeded the 8-hour potential health risk of ISO 2631-1. The ride vibrations exceeding the 8-hour exposure limit were 38.5% in plowing, 31.6% in rotovating, 100% in farm road transport and 88.9% in concrete road transport. Although most tractor operators were not exposed to ride vibrations greater than the 8-hour exposure limit value (ELV) of EU Directive 2002/44, 7.7% of the operators in the plowing experienced greater vibrations than the ELV in the fore-aft direction. Farm road transport produced greater vibrations than any other operations. Concrete road transport, plowing and rotovating operations followed next. Limit criteria for ride vibration exposure differ depending upon the guidelines. Exposure limit of the health guidance caution zone of ISO 2631-1 is lowest among its kinds.
Keywords
Ride vibration; Agricultural tractor; Exposure limit value (ELV); Exposure action value (EAV); Fatigue-decreased proficiency boundary; Absorbed power;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Chung, S. S., G. S. Mun and K. U. Kim. 1992. Evaluation of ride vibration of agricultural tractors (III) -Measurement and evaluation of ride vibrations-. Journal of Korean Society of Agricultural Machinery 18(3):191-198
2 Deprez, K., D. Moshou, J. Anthonis, J. De. Baerdemaeker and H. Ramon. 2005. Improvement of vibrational comfort on agricultural vehicles by passive and semi-active cabin suspensions. Computers and Electronics in Agriculture 49(3):431-440   DOI   ScienceOn
3 European Union Directive 2002/44/EC. 2002. Council directive on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (vibration). European Union, Brussels, Belgium
4 ISO Standard 2631-1. 1997. Mechanical vibrations and shock -Evaluation of human body exposure to whole-body vibration- Part 1: General requirements. International Organization for Standardization, Paris
5 ISO Standard 2631-1. 1985. Mechanical vibrations and shock -Evaluation of human body exposure to whole-body vibration- Part 1: General requirements. International Organization for Standardization, Paris.
6 Kim, H. J. 2008. Evaluation of ride vibrations of agricultural tractors, Unpublished MS thesis. Seoul National University
7 Lee, R. A. and F. Pradko. 1968. Analytical analysis of human vibration. Transactions of SAE 77(1):346-360
8 Marsili, A., L. Ragni, G. Santoro, P. Servadio and G. Vassalini. 2002. Innovative systems to reduce vibrations on agricultural tractors: Comparative analysis of acceleration transmitted through the driving seat. Biosystems engineering 81(1):35-47   DOI   ScienceOn
9 Park, Y. J., S. B. Park and K. U. Kim. 2004. Characteristics of ride vibrations in rotary tillage and plowing operations by tractor. Journal of Biosystems Engineering 29(3):207-216. (In Korean)   DOI   ScienceOn
10 Stayner, R. M., T. S. Collins and J. A. Lines. 1984. Tractor ride vibration simulation as an aid to design. Journal of Agricultural Engineering Research 29(4):345-355   DOI   ScienceOn