Output Feedback Control of Rotating Disk Vibrations

Abstract

Output feedback control of rotating disk vibrations is investigated. A polynomial equation, which determines the closed-loop system poles, is derived in wave coordinates and the approximate solutions for each wave are provided. The closed-loop system characteristics are analyzed in relation to the P-D gains and the sensor-actuator location, utilizing the approximate solutions of the closed-loop poles. Analysis of the closed-loop system in case of the half-clamped disk is also performed, with the gains and location varied.