Motion and Vibration of a Flexible Transportation system

Abstract

This paper deals with motion and vibration control for a flexible tower-like transportation system, taking account of uncontrollable vibration modes called drumming mode. When the transportation system is constructed symmetrically, these modes are appeared as uncontrollable ones. For controlling vibration of whole modes under consideration, a structural modification in the design stage is carried out. Applying a lumped modeling method presented by Seto and LQI-based control system, two controllers are designed which achieves good performance for controlling motion and vibration in the flexible transportation system.