Mechanical impedance of wheeled tractor steering mechanism

Abstract

There are fairly many wheeled tractors of 6 kN class made in CIS (Community of Independent States). The characteristics of noise and vibration are inadequate for valid standards. Vibrations of especially high levels having the effect on hands are generated through the steering wheel to the person’s (operator’s) hands. If fitting in vibroisolating or vibrodepherisating elements to the driving mechanism details junctions (joints), it is partly possible to lessen the vibration level having the effect on the person. It would be more effective and more rational to discuss the possibilities of absorbing spreading vibration and vibroisolation when there is enough information about the vibration of the steering wheel mechanism. Applying the methods of mechanical impedance, the mathematical model of steering mechanism, consisting of the steering wheel mechanism and the steering wheel has been made, giving an opportunity to analyze the interaction of the steering wheel, the person (operator), and the spreading vibration.