Balanced Control of Flexible Structures by Wodek Gawronski PDF

By Wodek Gawronski

ISBN-10: 3540760172

ISBN-13: 9783540760177

Equipment of structural keep watch over and dynamics are brought during this e-book. those comprise aid of enormous structural versions by way of balanced truncation, placement of actuators and sensors for dynamic trying out and regulate, structural id of the minimum-order balanced illustration, balanced dissipative controller layout, balanced LQG and H( controller designs with the closed-form relationships among controller parameters and method functionality, and controller relief equipment that shield the closed-loop functionality. The booklet explores the original homes of versatile buildings to acquire effective tools of dynamic research and controller layout. The provided equipment of structural dynamics, identity, sensor/actuator placement, and passive, LQG and H( controller layout were checked either with simulations and commercial implementations.

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The last property follows from the diagonal dominance of the matrix A in the balanced coordinates. 61). 60), regardless of the sensor and actuator location), and that the orientations of the balanced and modal coordinates are almost identical. Although the balanced and modal coordinates almost coincide, the important difference between them lies in their scaling. It is well known that the modal coordinates are not unique, since they depend on the scaling of the natural modes, which is arbitrary.

This large and complex structure presents many difficulties in the controller design, and also violates the narrow definition of a flexible structure provided earlier. Yet, its flexible properties are dominating that the controller design methods derived for the narrowly defined structure can be applied in the antenna case as well. 19 Chapter 3 Balanced Open-Loop Systems Controller design relies heavily on the plant controllability and observability properties. , a property that all states are excited by the input actuators).

11) IlYrllIly-yrU is a measure of the distance of the reduced model from the optimal one. Surely, for the optimal reduced model one obtains e = 0 , and for the near-optimal model one obtains e< =-~-O, and e--0. In summary, a,~l implies e<

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Balanced Control of Flexible Structures by Wodek Gawronski


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