Abstract Scanlan’s semi-empirical nonlinear model has been widely applied in bridge engineering because of its simplicity. However, it is based on the oscillation displacement, and thus it fails to describe the Vortex-induce Vertical Force (VIVF) on a flat closed-box bridge deck. In the study, in order to better depict VIVFs, a new improved model was proposed. First, the residual of the Vortexinduced Vertical Force (VIVF) is regular and maintains the significant quadratic relation with the VIVF reconstructed by Scanlan’s model, which means Scanlan’s model needs to be improved by adding quadratic terms. Second, an appropriate quadratic term was a dot product of dimensionless displacement and velocity, because this term has a significant linear relation with the reconstructed VIVF in the residual plot, and is independent of the other terms in Scanlan’s model. Furthermore, in lock-in range, the maximum oscillation displacement of a blunt body at different wind speeds was predicted by the proposed model. Simulation results showed that the proposed model is suitable for describing the nonlinearity of the VIVF and well fit the measured data. Due to simplicity, validity, and parameters to be easily identified, the proposed model has potential application in engineering.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Improvement of Scanlan’s Nonlinear Model based on Residual Analysis


    Beteiligte:
    Yan, Jingwen (Autor:in) / Tian, Xiaoxia (Autor:in) / Zhou, Qi (Autor:in) / Yang, Yanchun (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2018-11-30


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Improvement of Scanlan’s Nonlinear Model based on Residual Analysis

    Yan, Jingwen / Tian, Xiaoxia / Zhou, Qi et al. | Online Contents | 2019


    Improvement of a Robotic Manipulator Model Based on Multivariate Residual Modeling

    Gale, Serge / Rahmati, Hodjatolah / Gravdahl, Jan Tommy et al. | BASE | 2017

    Freier Zugriff

    Model based on time sequence analysis and residual matching

    CHEN YANRU / LIU CHANG / LIN LUOJIE et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Model-based transmission acoustic analysis and improvement

    Cao, Zhan / Chen, Yong / Zang, Libin | SAGE Publications | 2020


    Use method of ship residual stability improvement system

    WANG LUPIN / LIU WEIDONG / FAN TAO | Europäisches Patentamt | 2021

    Freier Zugriff