Introduction to Active Vibration Control

Chapter
Part of the Solid Mechanics and Its Applications book series (SMIA, volume 198)

Abstract

This chapter is intended to give a flavor of active vibration control and, at the same time, to illustrate how active control is primarily based on understanding the system dynamics, rather than on a blind application of control recipes. This is done through four sections borrowed from different fields of engineering. The first section highlights the virtue of collocated control: a collocated control configuration should always be preferred to a non-collocated one if possible. The second section uses the quarter-car model developed in the previous chapter to analyze the active suspension known as sky-hook damper. The third section re-examine the n-storey building of the previous chapter, but actively controlled with an inertial actuator. Finally, the fourth section analyzes the dynamics and active damping of an active truss (representative of a large space structure) equipped with an active strut consisting of a displacement actuator (e.g. piezoelectric) collocated with a force sensor; the choice of the active strut location and the trade-off between damping and static stiffness is discussed. A set of problems is proposed at the end of the chapter.

Keywords

Force Actuator Flexible Mode Active Suspension Root Locus Passive Suspension 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Active Structures LaboratoryUniversité Libre de BruxellesBrusselsBelgium

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