Introduction
In the foregoing chapters, we have seen that the use of collocated actuator and sensor pairs, for a lightly damped flexible structure, always leads to alternating poles and zeros near the imaginary axis, Fig.6.1.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 (SISO) control systems, even if the system parameters are subject to large perturbations. 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 robust with respect to stability. The use of collocated actuator/sensor pairs is recommended whenever it is possible.
Keywords
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.
An Erratum for this chapter can be found at http://dx.doi.org/10.1007/978-94-007-2033-6_18
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Rights and permissions
Copyright information
© 2011 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Preumont, A. (2011). Collocated versus Non-collocated Control. In: Vibration Control of Active Structures. Solid Mechanics and Its Applications, vol 179. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2033-6_6
Download citation
DOI: https://doi.org/10.1007/978-94-007-2033-6_6
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-2032-9
Online ISBN: 978-94-007-2033-6
eBook Packages: EngineeringEngineering (R0)