構造振動系における可変フィードバックモード制御の研究 : 第1報, 可変速度フィードバック法の提案

抄録

A modal control with variable velocity feedback for structural vibration systems is proposed. In particular, two methods of variable velocity feedback are presented. The first method is a design in the actual domain and is based on the following idea : even if the number of velocities measured is less than the number of controlled modes, we only have to supply the ideal control input to the actuators by estimating the unobserved velocities. Therefore, the feedback gains change depending on each mode. The second method is a design in the modal domain and the orthogonality property of the modal coordinates is used in this method. These two methods not only realize an optimal pole assignment for the controlled modes, but also have no effect on the uncontrolled modes. Simulations of the active control of two mathematical models are carried out to verify the efficiency of these methods.