| 摘要 |
PROBLEM TO BE SOLVED: To provide a damping device which improves stability of damping by canceling fault generated by a low sensitivity region in which damping effect acquired through an excitation of exciting means is low. SOLUTION: When vibration generated by a vibration generating source gn and offsetting vibration generated by the exciting means are offset at a location at which they should be damped, a damping current command I<SB>41</SB>, or an offsetting signal, is corrected so that vibration remaining as offsetting error may be small based on vibration detected by a vibration detecting means 1, and the damping current command I<SB>41</SB>, or the offsetting signal, is made to be corrected in a direction that the offsetting vibration generated by the exciting means is suppressed when a present frequency is decided to be present in the low sensitivity region by a sensitivity judging means 52. COPYRIGHT: (C)2011,JPO&INPIT |
