Passive Control of the Flexible Structures Subjected to Moving Vibratory Systems

摘要

Abstract The objective of this paper is to propose a reasonable dynamic model and design a passive Controller of the bridge system for vibration control purposes. The bridge system is subjected to a moving vehicle. Like an elastic beam, system includes both spring and link flexibility, and is akin to a flexible-link robot arm with joint flexibility. The symbolic form of the equations describing the bridge vibration system is developed using Lagrange’s equations and elastic deflection with the assumed-mode method. Therefore, the mode) will be appropriate for dynamic analysis and simulation as well as controller design. The design of the parameters of a passive control mechanism (e.g. dynamic absorber) in order to reduce the amplitude of vibration is also described. Dynamic computer simulation results (i.e. time histories) are presented in the paper. The broad range of problems discussed in this paper will be found useful in civil, mechanical, transport, marine, offshore, aviation, and astronautical engineering, for vibratory systems with moving loads.