The invention provides a test method for evaluating rapid performance of a ship under navigational speed fluctuation. The test method specifically comprises the following steps: S1, manufacturing a ship model for a test according to a ship model scale ratio; s2, pressing ballast on the ship model and weighing to obtain the total weight of the ship model; s3, setting a navigational speed range and a speed change function of the ship model test; s4, solving a first-order derivative of the speed change function in the S3 to obtain a ship model acceleration at, and measuring ship model resistance data at different moments in the test; s5, calculating the additional mass of the ship model by using the accelerated speeds at of the ship model at different moments in the step S4; s6, calculating the additional mass percentage of the ship model, and evaluating the rapid performance of the ship under the same acceleration of different ship models; according to the method, the ship model at the variable speed is adopted for ship model rapid performance evaluation, the additional mass percentages of the ship model at different moments are calculated, the actual navigation condition is better met, and the stability of ship rapid performance evaluation is improved.

    本发明提供一种在航速波动下评估船舶快速性能的试验方法,具体包括:S1:按船模缩尺比制作试验用的船模;S2:在船模上压上压载并称重得到船模总重量;S3:设定船模试验的航速范围和速度变化函数;S4:对S3所述速度变化函数求一阶导得到船模加速度at,测量试验中不同时刻船模阻力数据;S5:利用S4所述不同时刻船模加速度at计算船模附加质量;S6:计算船模附加质量百分比评估不同船模在相同加速度下船舶的快速性能;本发明采用变化速度下的船模进行船模快速性能评估,计算出不同时刻船模附加质量百分比,更加符合实际航行情况,提高了船舶快速性能评估的稳定性。


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    Titel :

    Test method for evaluating rapid performance of ship under navigational speed fluctuation


    Weitere Titelangaben:

    一种在航速波动下评估船舶快速性能的试验方法


    Beteiligte:
    CHEN JIANTING (Autor:in) / CHEN WEIMIN (Autor:in) / DONG GUOXIANG (Autor:in)

    Erscheinungsdatum :

    31.10.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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