Titlebook: Vibration Control of Active Structures; An Introduction André Preumont Book 1997 Springer Science+Business Media Dordrecht 1997 beam.design

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Collocated versus non-collocated control,ons. This is because the root locus plot keeps the same general shape, and remains entirely within the left half plane when the system parameters are changed from their nominal values. Such a control system is said to be . with respect to stability. The use of collocated actuator/sensor pairs is recommanded whenever it is possible.

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Introduction,s. One way to prevent this is to build the structure from a thermally stable composite material. An alternative way is to use a set of actuators and sensors connected by a feedback loop; such a structure is .. In this case, we exploit the main virtue of feedback which is to reduce the sensitivity of

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Collocated versus non-collocated control,nating poles and zeros near the imaginary axis (Fig.4.1.a). In this chapter, using the root locus technique, we show that this property guarantees the asymptotic stability of a wide class of single-input single-output (.) control systems, even if the system parameters are subject to large perturbati

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Controllability and Observability,s the ability of the particular sensor configuration to supply all the information necessary to estimate all the states of the system. Classically, control theory offers controllability and observability tests which are based on the rank deficiency of the controllability and observability matrices:

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Stability,poles of the system in the left half plane. In chapter 6, we saw that the poles are the eigenvalues of the system matrix A when the system is written in state variable form. In chapter 7, we examined the Nyquist criterion for closed-loop stability of a . system; we concluded on the stability of the