Through the viscous damping wall test, the displacement time history data of the free vibration test is first obtained by means of the Vic-2D non-contact acquisition equipment. Then, based on the original displacement time history, the damping force time history and velocity time history are calculated by energy method and central difference method respectively. In order to filter the high-frequency noise in the signal, Butterworth low-pass digital filter is used to filter the time history curve, and then a smooth velocity damping force relationship curve is obtained. Select the key control points on the relationship curve to obtain the skeleton curve of velocity damping force. Linear fitting is performed based on the pure damping model to obtain the mechanical model parameters of the damping wall. Finally, Rosenbrock integration method is used for numerical simulation, and the displacement time history curve and displacement damping force relationship curve obtained from the test results and numerical simulation results are compared to verify the reliability of the mechanical model parameter identification method.


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    Title :

    Experimental Analysis of Viscous Damping Wall Based on Free Vibration Response


    Additional title:

    Lect.Notes Mechanical Engineering


    Contributors:
    Yadav, Sanjay (editor) / Kumar, Harish (editor) / Wan, Meher (editor) / Arora, Pawan Kumar (editor) / Yusof, Yusri (editor) / Sun, Junxia (author) / Liu, Nana (author) / Wang, Yingjia (author) / Zhang, Yan (author) / Wang, Wei (author)

    Conference:

    International conference on Advancement in Materials, Manufacturing, and Energy Engineering ; 2022 ; Xi'an, China September 23, 2022 - September 25, 2022



    Publication date :

    2023-08-09


    Size :

    8 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English






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