Adaptive Vibration Control for Cable-Bridge Coupled Uncertain Nonlinear System

Yanjun Liang, Junqi Liang, Zhongsheng Wang

Abstract


Considering buffeting loading on the structure, technique of adaptive vibration control for long-span cable-bridge structure is developed. Model of vibration control for uncertain nonlinear systems of long-span cable-bridge structure is established; buffeting loading systems of long-span bridge structure is created by weighted amplitude wave superposition method. In order to depress buffeting loading influence of the wind-induce vibration for the structure and improve the robust performance of the vibration control, based on the semi-active vibration control devices and using adaptive control approach, an adaptive vibration controller and adaptive control laws for the uncertain parameters are designed. Numerical simulation results illustrate the effectiveness of the proposed technique.


Keywords


adaptive control; vibration control; uncertain system; nonlinear system; cable-bridge coupled.

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References


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