Active Control of Dynamic Response for a Discrete System in an Elastic Structure

Abstract:

In this study, the dynamic response of a discrete system being fixed to an elastic beam has been controlled actively by means of a feedforward control method. A discrete system is considered as a vibrating receiver which be forced to vibrate by a vibrating source being positioned on the elastic beam. By analyzing the interactive motions between a discrete system and an elastic beam, the equation of motion for an elastic beam was derived by using a method of variation of parameters and also dynamic response of a discrete system was solved. To define the optimal conditions of a controller, the cost function, which denotes the dynamic response of a discrete system was evaluated numerically. The possibility of reduction of a dynamic response was found to depend on the locations of a control force, the magnitude of a discrete system mass and a forcing frequency.

• Periodical: Advanced Materials Research (Volume 505)
• Pages: 512-516
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.505.512
• Online since: April 2012
• Authors: Gi Man Kim, Seong Dae Choi
• Keywords: Cost Function, Dynamic Response, Feedforward Control Method

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