Real-Time Hybrid Experimental Simulation System Using Coupled Control of a Shake Table and Hydraulic Actuator

Abstract eng:
The proposed hybrid loading test method using a shake table and a hydraulic actuator is intended for the application such as evaluation of real-time dynamic response of structural systems under strong seismic excitation. The test method consists of the shaking table test, and dynamic loading test using a dynamic actuator for the specimens that are parts of the structural system considered and numerical computation for the other part. The coupled time delay effect of the shake table and the hydraulic actuator is analyzed using the transfer function approach and numerical stability analysis, and the successful implementation of the test method based on the dynamic compensation of the delay effects of the loading equipments using digital filters is demonstrated by a series of verification tests.

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