Real-time prediction of near-future seismic excitation adapting AR model to preceding information

Yamada, Kazuhiko

doi:10.1002/(sici)1096-9845(199912)28:12<1587::aid-eqe883>3.0.co;2-x

Earthquake Engng. Struct. Dyn.

1999

DOI: 10.1002/(sici)1096-9845(199912)28:12<1587::aid-eqe883>3.0.co;2-x

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Real-time prediction of near-future seismic excitation adapting AR model to preceding information

Kazuhiko Yamada

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Cited by 3 publications

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Control strategy for variable damping element considering near-future excitation influence

Yamada

2000

Earthquake Engng. Struct. Dyn.

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SUMMARYA control strategy is proposed for variable damping elements (VDEs) used together with auxiliary sti!ness elements (ASEs) that compose a time-varying non-linear Maxwell (NMW) element, considering near-future excitation in#uence. The strategy "rst composes a state equation for the structural dynamics and the mechanical balance in the NMW elements. Next, it establishes a cost function for estimating future responses by the weighted quadratic norms of the state vector, the controlled force and the VDEs' damping coe$cients. Then, the Euler equations for the optimum values are introduced, and also approximated by the "rst-order terms under the autoregressive (AR) model of excitation information. Thus, at each moment t I , the strategy conducts the following steps: (1) identify the obtained seismic excitation information to an AR model, and convert it to a state equation; and (2) determine VDEs' damping coe$cients under the initial conditions at t I and the "nal state at t I>* , using the "rst-order approximation of the Euler equations. The control e!ects are examined by numerical experiments.

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Control strategy for variable damping element considering near-future excitation influence

Yamada

2000

Earthquake Engng. Struct. Dyn.

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Multi-step prediction of strong earthquake ground motions and seismic responses of SDOF systems based on EMD-ELM method

Yang

2016

Soil Dynamics and Earthquake Engineering

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Fundamental dynamics and control strategies for aseismic structural control

Yamada

Kobori

2001

International Journal of Solids and Structures

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Real-time prediction of near-future seismic excitation adapting AR model to preceding information

Cited by 3 publications

References 12 publications

Control strategy for variable damping element considering near-future excitation influence

Control strategy for variable damping element considering near-future excitation influence

Multi-step prediction of strong earthquake ground motions and seismic responses of SDOF systems based on EMD-ELM method

Fundamental dynamics and control strategies for aseismic structural control

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