Active Control of Structures
With Active Control of Structures, two global pioneers present the state-of-the-art in the theory, design and application of active vibration control. As the demand for high performance structural systems increases, so will the demand for information and innovation in structural vibration control; this book provides an effective treatise of the subject that will meet this requirement. The authors introduce active vibration control through the use of smart materials and structures, semi-active control devices and a variety of feedback options; they then discuss topics including methods and devices in civil structures, modal analysis, active control of high-rise buildings and bridge towers, active tendon control of cable structures, and active and semi-active isolation in mechanical structures.
Active Control of Structures:
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A Comparison of Passive Active and Hybrid Control
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acceleration active dynamic absorber active mass active strut active vibration control actuator and sensor actuator/sensor asymptotic bridge tower closed-loop poles collocated control force control object control theory corresponding Cumulative RMS displacement sensor equation equivalent mass excitation experimental feedback gain filtered LQ control finite element force actuator force feedback force sensor Frequency Hz frequency response higher modes imaginary axis impulse response input isolator kBBT located loops low-pass filter LQ control theory lumped mass model mass damper mass point modal analysis mode shapes modeling points motion natural frequencies nodes Ns/m obtained open-loop poles open-loop transfer function output payload plate pole/zero pattern poles and zeros Preumont problem relative displacement resonance peak road velocity root locus semi-active Seto shear frame shown in Figure simulation spillover sprung mass stability stiffness matrix tower structures transfer function transmission zeros Triple Towers variable vector vibration mode