Res. Agr. Eng., 2014, 60(4):134-141 | DOI: 10.17221/65/2012-RAE

Investigating operator vibration exposure time of 13 hp power tiller fuelled by diesel and biodiesel blendsOriginal Paper

B. Heidary1, S.R. Hassan-Beygi1, B. Ghobadian2
1 Department of Agricultural Technical Engineering, College of Abureihan, University of Tehran, Tehran, Iran
2 Department of Mechanics of Agricultural machinery Engineering, College of Agriculture, University of Tarbiat Modarres, Tehran, Iran

One of the most useful agricultural machinery is power tiller; this kind of tractor is widely used in small fields. The operators of this kind of machinery are exposed to high level of vibration. Long time working with these machinery causes dynamic disorders, damaging different parts of the body, digestion disorders and vascular diseases. In this research, vibration acceleration of 13hppower tiller was collected in 5 levels of engine speed and 6 kinds of consumed fuel blends investigating the power tiller vibration exposure time. The data were analyzed by factorial tests with completely random design. The results showed that reciprocal effect of fuel and engine speed are prominent in 1% level. The working conditions of the power tiller operator fall into the highest class of risk according to ISO 5349-2 (2001) and in less than 4 years White Finger Syndrome may have induced in 10% of operators. Results of experiments revealed that the exposure time decreases with increase in engine speed especially in 1,800 and 2,200 rpm. The reason is the vibration intensification that happened in handle of power tiller in 1,800 rpm engine speed so it reduced the exposure time severely. The latency period for the appearance of vibration-induced White Finger Syndrom in biodiesel 10%, 15% and 20%, respectively, so using diesel fuel can be replaced by these three kinds of fuel in power tillers.

Keywords: white finger; vibration acceleration; highest class of risk; working conditions

Published: December 31, 2014  Show citation

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Heidary B, Hassan-Beygi SR, Ghobadian B. Investigating operator vibration exposure time of 13 hp power tiller fuelled by diesel and biodiesel blends. Res. Agr. Eng. 2014;60(4):134-141. doi: 10.17221/65/2012-RAE.
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    References

    1. Bini S., Kathirvel K., 2009. Development and evaluation of vibration isolators for reducing hand transmitted vibration of walking and riding type power tillers. Biosystem Journal, 103: 427-437. Go to original source...
    2. Carraretto C., Macor A., Mirandola A., Stoppato A., Tonon S., 2004. Biodiesel as alternative fuel: Experimental analysis and energetic evaluations. Energy, 29: 2195-2211. Go to original source...
    3. Dewangan K.N., Tewari V.K., 2009. Characteristics of hand-transmitted vibration of a hand tractor used in three operational modes. International Journal of Industrial Ergonomics, 39: 239-245 Go to original source...
    4. Dewangan K.N., Tewari V.K., 2008. Characteristics of vibration transmission in the hand-arm system and subjective response during field operation of a hand tractor. International Journal of Biosystem Engineering, 100: 535-546. Go to original source...
    5. Dorado M.P., Ballesteros E., Arnal J.M., Lopez F.J., 2004. Exhaust emissions from a diesel engine fueled with trans esterified waste olive oil. Journal of Fuel, 82: 1311-1315. Go to original source...
    6. Griffin M.J., 1996. Hand Book of Human Vibration. London, Academic Press.
    7. Griffin M.J., Bovenzi M., Nelson C.M., 2003. Doseresponse patterns for vibration-induced white finger. Occupational and Environmental Medicine, 60: 16-26. Go to original source... Go to PubMed...
    8. Goglia V., Gospodaric Z., Filipovic D., Djukic I., 2006. Influence on operator'shealth of hand-transmitted vibrations from handles of a single-axle tractor. Annals of Agricultural and Environmental Medicine, 13: 33-38. Go to PubMed...
    9. Ghobadian B., Khatamifar M., 2006. Biodiesel fuel production using transesterification of waste vegetable oils. The Journal of Engine Research: 24-35.
    10. Hassan-Beygi S., Ghobadian B., 2005. Noise attenuation characteristics of different road surfaces during power tiller transport. Agricultural Engineering International, CIGR E-Journal. VII: Manuscript PM 04009.
    11. Hassan-Beygi S., Ghobadian B., Amiri R., Kianmehr M.H., 2009. Prediction of power tiller noise levels using a back propagation algorithm. International Journal of Agriculture & Biology, 11: 147-160.
    12. ISO 5349-2, 2001. Mechanical vibration - guidelines for the measurement and assessment of human exposure to hand-transmitted vibration. Part 2: Practical guidance for measurement at the workplace. Geneva, International Standard Organization.
    13. Lee S.W., Herage T., Young B., 2004. Emission reduction potential from the combustion of soy methyl ester fuel blended with petroleum distillate fuel. CANMET Energy Technology Centre, 83: 1607-1613. Go to original source...
    14. Mansfield N.J., 2005. Human Response to Vibration, Boca Raton, CRC Press: 244
    15. Okunribido O.O., Magnusson M., Pope M.H., 2006. Low back pain in drivers: The relative role of whole-body vibration, posture and manual materials handling. Journal of Sound and Vibration, 298: 540-555. Go to original source...
    16. Salokhe V.M., Majumder B., Islam M.S., 1995. Vibration characteristics of a power tiller. Journal of Terramechanics, 32: 181-197. Go to original source...
    17. Sam B., Kathirvel K., 2006. Vibration characteristics of walking and riding type power tillers. Biosystems Engineering, 95: 517-528. Go to original source...
    18. Sam B., Kathirvel K., 2009. Development and evaluation of vibration isolators for reducing hand transmitted vibration of walking and riding type power tillers. Biosystems Engineering, 103: 427-437. Go to original source...
    19. Taghizadeh A., Hashjin T.T., Ghobadian B., Nikbakht A.M., 2007. Evaluation of vibration in power tiller on the asphalt surface. In: Proceedings of the International Agricultural Engineering Conference Cutting Edge Technologies and Innovations on Sustainable Resources for World Food Sufficiency. December 3-6, 2007. Bangkok.
    20. Tewari V.K., Dewangan K.N., Subrata K., 2004. Operator's fatigue in field operation of hand tractors. Biosystems Engineering, 89: 1-11. Go to original source...
    21. Zenouzi A., 2007. Evaluation of MF-399 tractor performance using biodiesel and diesel blends. [MSc. Thesis.] Tehran, Tarbiat Modares University.

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