Study on interventions to reduce vibration transmission to power tiller operator
Journal Title: Journal of Applied and Natural Science - Year 2016, Vol 8, Issue 1
Abstract
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.
Authors and Affiliations
Varun Chaturvedi, Adarsh Kumar, I. M. Mishra, R. N. Sahoo, J. K. Singh, G. K. Jha, S. B. Lal
Keywords
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