Bull Earthquake Eng https://doi.org/10.1007/s10518-018-0403-z ORIGINAL RESEARCH PAPER An optimum model reference adaptive control algorithm for smart base‑isolated structures 1 2,3 1 Dongbin Zhang · Peng Pan · Yi Zeng Received: 29 January 2018 / Accepted: 31 May 2018 © Springer Nature B.V. 2018 Abstract In structural control, appropriate control parameters and a stable closed-loop mechanism are required for a controller to achieve optimal performance, particularly in the presence of uncertain structural parameters under external excitation. In this study, an opti- mum model reference adaptive control (OMRAC) algorithm combining the Linear quad- ratic regulator method and Model Reference Adaptive Control based on Lyapunov stability is proposed. The OMRAC algorithm is implemented and applied to the response control of a base-isolated structure equipped with magneto-rheological dampers under earthquake excitations. The results from a series of numerical simulations that consider the effects of uncertainty within structural parameters are reported. The performance of the OMRAC algorithm is compared with that of other control algorithms in terms of effectiveness and stability. The results suggest that the proposed OMRAC method can successfully compen- sate for uncertainties in structural parameters, leading the controlled structure to adaptively track the optimal response of the reference model. Keywords Model reference adaptive control · Linear
Bulletin of Earthquake Engineering – Springer Journals
Published: Jun 5, 2018
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