Characteristics of Hand Transmitted Vibration through Steering Wheel of Tractor during Ploughing Field

The paper presents the transmission of vibrations through the steering wheel of the tractor during the ploughing\ud field. The measurements of vibration were carried out on the tractor randomly chosen. An investigation was\ud conducted to determine the transmission of vibration from the steering wheel of the tractor to the wrists and\ud upper arms of the operator under actual field conditions during ploughing field. The vibrations transmitted\ud through the steering wheel of the tractor to the hand of the operator was measured and the frequency spectra for\ud the chosen working conditions were obtained. The maximum transmissibility of vibration were observed in the\ud first two frequency interval (in Hz) i.e. 1-20 and 20-40. The vibration, which is transmitted from the steering\ud wheel of the tractor to the wrists, arms and shoulders causes discomfort to the operator and results in early\ud fatigue