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## Abstract Natural hazards such as earthquakes and strong wind events place large forces on tall, slender structures and on long‐span bridges that inherit numerous uncertainties due to model errors, stress calculations, material properties, and load environments. Thus, a robust feedback control for structural systems is needed. This paper develops a robust active control approach for uncertain structural systems with acceleration sensors and white noise. The approach is based on a robust state feedback control, with the robust α‐degree relative stability, robust __H__~__∞__~ __δ__‐degree disturbance rejection and robust __H__~2~ optimality, and a modified Kalman filter, with α~0~‐degree relative' stability. The uncertainties considered include structural ones in the system and control input matrices and multiplicative nonstructural ones in the disturbance input matrices. Special singular value decomposition (SVD) is applied to structured uncertain structures. Numerical simulations excited by the 1940 El Centro, California, earthquake data have been carried out for the proposed different robust controllers and LQG for comparison. The resulting approach to robust control may be appl

Who reads Robust Active Control for Uncertain Structural Systems with Acceleration Sensors?

Author

Sheng-Guo Wang

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Pitagora Editrice; Wiley (ISSN 1122-8385)

Published

2003

Language

EN

Field

Engineering (Physical Sciences)