Abstract: In operations controlled by hands and arms, vibration transmitted from controller to hand
and arm would have an impact on the accuracy of operation. The effects of vibrations are investigated
with different parameters on operation accuracy, with the help of a program to simulate a path tracing
operation in virtual space. A programmable haptic device is used as the controller. Vibration
frequency has a nonlinear effect on operation errors, and significant effects occur in the vicinity of
2 Hz. Vibration amplitude has an approximate linear effect on operation errors, and operation errors
can also be affected by vibration direction.

Key words: man-machine engineering, interactive simulation, operation accuracy, hand-transmitted
vibration