NDLI: Nonlinear Stochastic Controllers for Semiactive and Regenerative Structural Control Systems, With Guaranteed Quadratic Performance Margins

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Jeffrey, T. Scruggs Alexandros, A. Taflanidis Wilfred, D. Iwan
Copyright Year	2006
Abstract	In many applications of vibration control, the circumstances of the application impose constraints on the energy available for the actuation of control forces. Semiactive dampers (i.e., viscous dampers with controllable coefficients) constitute the simplest example of such actuation in structural control applications. Regenerative Force Actuation (RFA) networks are an extension of semiactive devices, in which mechanical energy is first converted to electrical energy, which is then dissipated in a controllable resistive network. A fairly general class of semiactive and regenerative systems can be characterized by a differential equation which is bilinear (i.e., linear in state, linear in control input, but nonlinear in both). This paper presents a general approach to bilinear feedback control system design for semiactive and regenerative systems, which is analytically guaranteed to out-perform optimal linear viscous damping in stationary stochastic response, under the familiar Quadratic Gaussian performance measure. The design for full-state feedback and for the more practical case of noise-corrupted and incomplete measurements (i.e., output feedback) are separately discussed. Variants of the theory are shown to exist for other quadratic performance measures, including risk-sensitive and multi-objective frameworks. An illustrative application to civil engineering is presented.
Starting Page	487
Ending Page	495
Page Count	9
File Format	PDF
ISBN	0791842509
DOI	10.1115/ESDA2006-95625
e-ISBN	0791837793
Volume Number	Volume 3: Dynamic Systems and Controls, Symposium on Design and Analysis of Advanced Structures, and Tribology
Conference Proceedings	ASME 8th Biennial Conference on Engineering Systems Design and Analysis
Language	English
Publisher Date	2006-07-04
Publisher Place	Torino, Italy
Access Restriction	Subscribed
Subject Keyword	Damping Dampers Control equipment Radiofrequency ablation Control systems Risk Pole placement Design Noise (sound) Feedback Differential equations Vibration control Civil engineering
Content Type	Text
Resource Type	Article

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