PSI - Issue 64

Jiantao Li et al. / Procedia Structural Integrity 64 (2024) 500–506 Author name / Structural Integrity Procedia 00 (2019) 000–000

505

6

Fig. 5. Response residual and its Fourier spectrum

5. Conclusions A new method by integrating the AKF with BEM has been developed to reconstruct the CP response of VBI system from vehicle responses. The CP responses and its derivatives are included to the vehicle states to develop an augmented state-space model of the vehicle system. The AKF and BEM is then integrated to simultaneously identify the vehicle states and CP responses. The results demonstrate that the vehicle axle and CP responses can be identified accurately from the responses of the vehicle body using the proposed method. The road surface roughness could be removed using the response residual of the CP responses at the front and rear axles to enhance the bridge modal identification. Acknowledgements The research is financially supported by the National Natural Science Foundations of China (No. 52108288) and China Postdoctoral Science Foundation (No. 2023M733407). The financial aid is gratefully acknowledged. References Wang, C., Zhan, J., Wang, Y., Zhang, F., Pan, D., 2024. A Drive-by methodology for rapid inspection of HSR bridge substructures using dynamic responses of passing marshaling trains. International Journal of Structural Stability and Dynamics 24(06), 2450068. Yang, Y., Lin, C., Yau, J., 2004. Extracting bridge frequencies from the dynamic response of a passing vehicle. Journal of Sound and Vibration 272 (3 – 5), 471 – 493. Wang, H., Nagayama, T., Nakasuka, J., Zhao, B., Su, D., 2018. Extraction of bridge fundamental frequency from estimated vehicle excitation through a particle filter approach. Journal of Sound and Vibration 428, 44 – 58. Zhang, F., Zhan, J., Li, J., Wang, Y., Wang, C., 2023. Indirect spatial mode shape identification of t-girder bridges using contact-point response of a moving test vehicle: a theoretical study. International Journal of Structural Stability and Dynamics 23(10), 2350112. Wang, Z., Yang, J., Shi, K., Xu, H., Qiu, F., Yang, Y., 2022. Recent advances in researches on vehicle scanning method for bridges. International Journal of Structural Stability and Dynamics 22(15): 2230005. Li, J., Zhu, X., Guo, J., 2022. Enhanced drive-by bridge modal identification via dual Kalman filter and singular spectrum analysis. Structural Control and Health Monitoring 29 (5), e2927. Yang, Y., Yang, J., 2018. State-of-the-art review on modal identification and damage detection of bridges by moving test vehicles. International Journal of Structural Stability and Dynamics 18 (2), 1850025. Yang, Y., Zhang, B., Qian, Y., Wu, Y., 2018. Contact-Point Response for Modal Identification of Bridges by a Moving Test Vehicle. International Journal of Structural Stability and Dynamics 18 (05), 1850073. Nayek, R., Narasimhan, S., 2020. Extraction of Contact-Point Response in Indirect Bridge Health Monitoring Using an Input Estimation Approach. Journal of Civil Structural Health Monitoring 10 (5), 815 – 831.