Dynamic Responses and Fuzzy Control of a Simply-Supported Beam Subjected to a Moving Mass

This paper deals with the active vibration control of a simply-supported beam traversed by a moving mass using fuzzy control. Governing equations for dynamic responses of a beam under a moving mass are derived by Galerkin's mode summation method, and the effect of forces (gravity force, Colioli...

Full description

Saved in:
Bibliographic Details
Published in:Journal of mechanical science and technology 2006-09, Vol.20 (9), p.1371-1381
Main Authors: KONG, Yong-Sik, RYU, Bong-Jo, SHIN, Kwang-Bok, LEE, Gyu-Seop, LEE, Hong-Gi
Format: Article
Language:English
Subjects:
Active control
Beams (structural)
Deflection
Dynamics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Fuzzy control
Inertia
Mathematical analysis
Physics
Solid mechanics
Structural and continuum mechanics
Studies
Vibration
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper deals with the active vibration control of a simply-supported beam traversed by a moving mass using fuzzy control. Governing equations for dynamic responses of a beam under a moving mass are derived by Galerkin's mode summation method, and the effect of forces (gravity force, Coliolis force, inertia force caused by the slope of the beam, transverse inertia force of the beam) due to the moving mass on the dynamic response of a beam is discussed. For the active control of dynamic deflection and vibration of a beam under the moving mass, the controller based on fuzzy logic is used and the experiments are conducted by VCM (voice coil motor) actuator to suppress the vibration of a beam. Through the numerical and experimental studies, the following conclusions were obtained. With increasing mass ratioy at a fixed velocity of the moving mass under the critical velocity, the position of moving mass at the maximum dynamic deflection moves to the right end of the beam. With increasing velocity of the moving mass at a fixed mass ratioy, the position of moving mass at the maximum dynamic deflection moves to the right end of the beam too. The numerical predictions of dynamic deflection of the beam have a good agreement with the experimental results. With the fuzzy control, more than 50% reductions of dynamic deflection and residual vibration of the tested beam under the moving mass are obtained.[PUBLICATION ABSTRACT]
ISSN:1738-494X
1976-3824
DOI:10.1007/BF02915960