Varun Chaturvedi Adarsh Kumar I. M. Mishra J. K. Singh R. N. Sahoo G. K. Jha S. B. Lal


Present study focuses on interventions to reduce vibration transmitted to power tiller operator. In this study two operations (namely: standing mode and transportation) and three forward speeds (1.0, 1.5 and 2.0 kmh-1) were selected. In both selected operations vibration magnitudes were maximum at 2.0 kmh-1. In the standing mode vibration magnitudes in x, y and z direction were 5.83, 1.37 and 2.36 ms -2 at 2.0 kmh-1. In transportation vibration magnitudes were 6.81, 1.49, 2.82 ms-2 respectively in x, y and z direction at 2.0 kmh-1. The selection of vibration isolators were done on the basis of the transmissibility curves and the isolation region. The selected isolators were installed at interface between engine and the chassis. These interventions along with previously developed bush and sheet type interventions reduced vibrations up to 50.24, 69.06 and 59.08 % at 1.0, 1.5 and 2.0 kmh-1 in stationary mode. In transportation vibration reduction were 52.96, 65.98 and 36.67 % at 1.0, 1.5 and 2.0 kmh-1, respectively. The vibration reduction were high in stationary mode than transportation mode because in stationary mode vibration comes only from the engine but in transportation vibration comes from engine and the surface profile as well.


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Hand-arm vibration, Interface, Isolation region, Transmissibility curves, Vibration isolator

Anonymous, (2013). State of Indian Agriculture 2012-13. Di-rectorate of Economics and Statistics, Department of Agriculture and Corporation, Ministry of Agriculture, New Delhi 20Indian % 20Agricul-ture %202012-13%20(English) %20with%20cover.pdf, 221 p.
Binisam and Kathirvel, K. (2006). Vibration characteristics of walking and riding type power tillers. Biosystems Engi-neering. 95 (4) : 517-528.
Binisam and Kathirvel, K. (2009). Development and evaluation of vibration isolators for reducing hand transmitted vibra-tion of walking and riding type power tillers. Biosystems Engineering. 103 : 427-437.
Chaturvedi, V., Kumar, A., Singh, J.K. (2012). Power tiller: Vibra-tion magnitudes and intervention development for vibration reduction. Applied Ergonomics. 43 : 891-901.
Dewangan, K.N. and Tewari, V.K. (2010). Handle grips for reducing hand-transmitted vibration in hand tractors. In-ternational Agricultural Engineering Journal. 19 (2) : 48-57.
Griffin, M.J. (1996). Handbook of Human Vibration. Acadmic press, London.
IEC 61260. (1995). Electroacoustics - Octave-band and frac-tional-octave-band filters. Geneva, Switzerland.
IEC 61672-1. (2002). Electroacoustics - Sound Level Meters - Part 1: Specifications. Geneva, Switzerland.
ISO 2631-1. (1985). Evaluation of human exposure to whole body vibration - Part:1. General Requirements, Geneva, Switzerland.
ISO 5349. (2001). Mechanical vibration-Guidelines for the measurement and the assessment of human exposure to hand transmitted vibration. Geneva, Switzerland.
Mehta, C.R., Tiwari, P.S., Varshney, A.C. (1997). Ride vibra-tions on a 7.5 kW rotary power tiller. Journal of Agric. Engng Res. 66 : 169-176.
Mehta, C.R., Chandel, N.S., Senthilkumar, T., Singh, K.K. (2014). Trends of Agricultural Mechanization in India. CSAM Policy Brief (Issue 2).
Ragni, L. (1993). Vibration transmitted to the hand-arm system by walking tractors. Third part: a solution for vibration reduction. Rivista di Ingegneria Agraria. 24 (4) : 193-198.
Rao, S.S. (2000). Mechanical Vibrations. Addison-Wesley Publishing company, Boston.
Tewari, P.K., Dewangan, K.N., Karmakar, S. (2004). Opera-tor’s fatigue in field operations of hand tractors. Biosys-tems Engineering. 89 (1) : 1-11.
Ying,Y., Zhang, L., Xu, F. and Dong, M. (1998). Vibratory characteristics and hand-transmitted vibration reduction of walking tractor. Transactions of the ASAE. 41 (4) : 917-922.
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Chaturvedi, V., Kumar, A., Mishra, I. M., Singh, J. K., Sahoo, R. N., Jha, G. K., & Lal, S. B. (2016). Study on interventions to reduce vibration transmission to power tiller operator. Journal of Applied and Natural Science, 8(1), 265–272. https://doi.org/10.31018/jans.v8i1.784
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