Studies on the Threshold Limit Value of Local Vibration of the Vibrating Agricultural Machinery. (III)

On the Practical Machinery

Abstract

The objects of the work reported here are (1) to investigate the characteristice of the random produced by practical agricultural machinery and to reduce severity of vibration imparted to operators, (2) to study on the threshold limit of local vibration.
The results of test are as follows:
(1) The characteristics of this transmissibility are related to resilience by holding the machine, and damping at high frequencies.
(2) The combination of the hand, radius and elbow joint forms an effective broad-band isolation system which tend to prevent high-frequency vibration propagation.
(3) Higher pulse rate takes place over a range of 3-5g.
(4) The new limit value curve is a little lower than the cuve by using sinusoidal input.