Influence of an uneven surface on the vibration occurrence affecting the tractor operator

Abstract

The paper presents a study of the influence of an uneven surface and number of tractor hours on vibration that is transmitted to the operator's hand-arm system during operation. The study was conducted on the asphalt, gravel and grass traversal during 2015 and 2016. The results indicate that the movement of a tractor on different agrotechnical surfaces generates vibrations of varying intensity that affect the hand-arm system of the operator. The highest vibration values were recorded on the asphalt, while the least vibrations were measured on the grass. The measured maximum vibration values are lower than the permissible 5 m·s−2 in the direction of all three axes, making it possible to assume that they are not harmful to the health of the operator.

Prediction of Noise Levels According to Some Exploitation Parameters of an Agricultural Tractor: A Machine Learning Approach

“…For tractors without a cabin, the highest measured noise level was 88 dB(A) at 2000 engine revolutions per minute, while for tractors with a cabin, the highest noise level, also at 2000 engine revolutions per minute, was 72 dB(A), significantly lower compared to tractors without cabins. Barač et al [17] stated that measurements of noise levels on a LANDINI POWERFARM DT100A tractor moving across three agrotechnical surfaces (grass, gravel, and asphalt) did not exceed the permitted level. The tests were performed according to standards that considered internal noise measurements during movement, and the tractor had 5800 operating hours at the time of measurement.…”