Inverse Dynamic Active Ground Motion Acceleration Inputs Estimation of the Retaining Structure

The innovative fuzzy estimator is used to estimate the ground motion acceleration of the retaining structure in this study. The Kalman filter without the input term and the fuzzy weighting recursive least square estimator are two main portions of this method. The innovation vector can be produced by the Kalman filter, and be applied to the fuzzy weighting recursive least square estimator to estimate the acceleration input over time. The excellent performance of this estimator is demonstrated by comparing it with the use of difference weighting function, the distinct levels of the measurement noise covariance and the initial process noise covariance. The availability and the precision of the proposed method proposed in this study can be verified by comparing the actual value and the one obtained by numerical simulation.

Authors:

• Ming-Hui Lee
• Iau-Teh Wang

Keywords:

• Earthquake
• Fuzzy Estimator
• Kalman Filter
• Recursive Least Square Estimator.

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