1985 Volume 47 Issue 3 Pages 321-327
To evaluate the characteristics of the rotational vibration of tractor (pitch, roll, yaw), a gravel road was selected and the angular accelerations of 3 tractors were measured and analyzed. The angular acceleration was calculated from accelerations measured by 9 accelerometers. Consequently, the pitch and yaw rotational vibrations were affected by the irregularities of terrain and the roll rotational vibration was affected not only by the irregularities of terrain, but also by lugs of rear wheels. And it seems that the magnitude of the yaw rotational vibration was negligibly small.
