Abstract
The sinusoidal reference strategy (SRS) is a new strategy developed by the present authors for adaptive feedforward vibration control. The recursive-least-squares algorithm is used and a higher frequency sinusoidal signal is adopted as the reference signal. Some shortcomings of the conventional adaptive feedforward control are overcome. Numerical simulations and experimental studies have been carried out. The results show that this strategy can reduce vibration remarkably, and can adapt in real time to dynamic uncertainties and modeling errors. In this paper, the principle of SRS-based adaptive feedforward control is briefly introduced first, then simulation studies are conducted on reducing wind-induced response of the benchmark wind-excited building. The results are also compared to that obtained from linear quadratic Gaussian control.
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