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Tests with dynamic loading can be carried out in real time. The system is also effective for structures with large damping.
A dynamic vibration test of a part and a numerical analysis of the overall structure are carried out in real time, and the earthquake response of the actual structure is evaluated.
Limited full-scale testing is supplemented by dynamic testing on parts and numerical analysis by computer.
Real-time testing is possible using prediction and compensation control for the vibration exciter response delay
A command signal for the delay time δt is applied in advance
Extrapolation from past calculated values
The predicted time δt is corrected as appropriate