This study investigates the use of second-order irregular waves for estimating loads on dropped objects. The theory for the irregular nonlinear wave model is integrated into a motion prediction model to simulate the falling process of a dropped cylinder under irregular waves. Through frequency analysis, the simulated irregular waves are transformed into wave spectrum by fast Fourier transform and compared with the target wave spectrum. A good agreement between simulated wave spectrum and target wave spectrum indicates the validity of the irregular nonlinear wave model. The effects of cylinder mass density, wave amplitude and initial wave phase on the trajectory and terminal conditions of dropped cylindrical object are systematically investigated, and the simulated results are compared with those induced by regular waves.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Incorporating irregular nonlinear waves in simulation of dropped cylindrical objects


    Contributors:


    Publication date :

    2020-02-01


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    INCORPORATING IRREGULAR NONLINEAR WAVES IN COUPLED SIMULATION OF OFFSHORE WIND TURBINES

    Agarwal, P. / Manuel, L. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2010




    On nonlinear ship motions in irregular waves

    Hasselmann, K. | Engineering Index Backfile | 1966


    DROPPED OBJECT INFORMATION PROVISION SYSTEM, AND DROPPED OBJECT INFORMATION PROVISION METHOD

    SHIBASAKI WATARU / NAKAJIMA TAKETO / NAKANISHI HARUKA et al. | European Patent Office | 2023

    Free access