Publication View

An electromagnetic forcing device (1978)

Abstract

The paper describes the drawbacks of an electromagnetic forcing device, of the type commonly used to study forced vibration of structures, and presents details of a feedback control system designed to overcome them. The work described was initiated when attempting to generate sinusoidal forcing in a nonlinear beam-vibration study. Magnetic-material nonlinearities and spatial inhomogenieties in the magnetic field led to unwanted harmonics in the force the beam experienced, and feedback was used to reduce these effects. A brief description of the principles of feedback control is presented and the problems encountered in applying the concepts to the electromagnetic forcing device are discussed. Details of the system, its problems, operating characteristics and limitations are presented.. Peer Reviewed. http://deepblue.lib.umich.edu/bitstream/2027.42/43929/1/11340_2006_Article_BF02324136.pdf

Publication details

Download	, http://hdl.handle.net/2027.42/43929
Publisher	Kluwer Academic Publishers; Society for Experimental Mechanics, Inc. ; Springer Science+Business Media
Contributors	Department of Aerospace Engineering, University of Michigan, 48109, Ann Arbor, MI, Department of Applied Mechanics, University of Michigan, 48109, Ann Arbor, MI, School of Engineering, Old Dominion University, 23508, Norfolk, VA, Ann Arbor
Repository	University of Michigan (United States)
Keywords	Characterization and Evaluation Materials, Mechanical Engineering, Theoretical and Applied Mechanics, Engineering Fluid Dynamics, Structural Mechanics, Engineering Design, Engineering, Engineering (General), Materials Science and Engineering, Engineering
Language	English