Abstract
In some structural tests it is desirable to isolate (i.e., excite and measure) a single mode. Such a technique considerably simplifies the determination of modal parameters, see [116]. This was first achieved by using the force appropriation method, also called the Asher method, see [107], or phase separation method, see [21]. In this method a spatial distribution and the amplitudes of a harmonic input force are chosen to excite a single structural mode. Modal actuators or sensors in a different fonnulation were presented in [38], [93], [75], and [114] with application to structural acoustic problems. In this chapter we present two techniques to determine gains and locations of actuators or sensors to excite and sense a target mode or a set of targeted modes.
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© 2004 Springer-Verlag New York, Inc.
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(2004). Modal Actuators and Sensors. In: Gawronski, W.K. (eds) Advanced Structural Dynamics and Active Control of Structures. Mechanical Engineering Series. Springer, New York, NY. https://doi.org/10.1007/978-0-387-72133-0_8
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DOI: https://doi.org/10.1007/978-0-387-72133-0_8
Publisher Name: Springer, New York, NY
Print ISBN: 978-0-387-40649-7
Online ISBN: 978-0-387-72133-0
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