2025 Volume 81 Issue 13 Article ID: 24-13538
Real-Time Hybrid Simulation (RTHS), which synchronizes dynamic loading tests and numerical analysis, is considered an effective method for evaluating the dynamic behavior of large structures. However, RTHS faces a challenge due to unavoidable control delays in actuator, which disrupts the correspondence between measured forces from the loading test and displacement responses from the numerical analysis, thereby reducing test accuracy. To address this issue, a force-based delay compensation method has been proposed. However, previous force-based compensation methods, such as T-Modification, have been reported to suffer from decreased accuracy due to noise in the measured force. In this study, a new force-based compensation method, which is robust to measurement noise and utilizes a simplified nonlinear model of the experimental component as prior information, is proposed. Verification experiments confirmed that the proposed method provides effective compensation even in the presence of measurement noise.
