軸荷重のON-OFF制御による危険速度の通過(機械力学,計測,自動制御)

概要

論文の詳細を見る
Natural frequencies of a flexible rotor are varied with its axial force. When a tensile axial force loaded, the rotational speed of a flexible rotor can be increased to the mean speed of its inherent critical speed and the raised one. Then, the tensile axial force is unloaded in very short time, the inherent critical speed is passed through without any serious whirl. ON-OFF control of a tensile axial force for a flexible rotor is realized in an experimental apparatus by a piezoelectric actuator whose response action is rapid. When the axial force is varied according to ON-OFF control schedule in experiments, the amplitude of an unbalance response is grossly reduced, and the first critical speed, are negotiated. A transient whirl, measured on the ON-OFF control action, is depend on a switching time and a slight change in its magnitude is observed below 0.1 second.
一般社団法人日本機械学会の論文
2002-06-25