二重円筒ロータの釣合せ : 第2報, はりモデルの伝達マトリックス法による解析

抄録

The balancing of a double cylindrical rotor is analyzed by modeling the system as a beam system connected by rotational spring and using the transfer matrix method. A double rotor is found to have the counter-phase-mode (CPM) vibration, which has different characteristics from the ordinal same-phase-mode (SPM) vibration ; for instance, the connecting spring influences the natural frequency of CPM, but not that of SPM. The model of the flexible disk supported type is found to have the optimum connecting spring constant to minimize the residual vibration, but the model of the double bearing type does not, which is caused by the difference in the characteristics of the CPM.