The mode of vibration of hand-held tools cannot be considered without knowledge of the influence of the operator's hand-arm system. Therefore some technical applications of hand-arm models were realized for drill hammers by the Uni- versity of Dortmund. These applications are a software program to simulate the motion of machine com- ponents, a horizontal drilling jig, and a chucking device in a drilling rig.
Keywords:
automatic test rig, drill hammer acceleration, drilling jig, mechanical impedance