The invention discloses a whole cruise ship finite element analysis method based on a target value, and relates to the field of ship structure design. The method comprises the following steps: establishing a whole ship finite element model; simulating target load distribution by adopting a polynomial; the target load is converted into distribution force; applying a distribution force and calculating an actual value; calculating a transfer function; calculating stress correction; correcting stress; evaluating the structural strength; according to the method, a target load is converted into a distribution force distributed along the length of a ship through a numerical method, and the obtained load is a load loaded on a model, so that an actual value of the load is obtained; a stress result is obtained through a transfer function working condition, stress caused by unit bending moment and shearing force on a unit is calculated according to the stress result, stress calculation is a transfer function, and stress correction is calculated; the actual stress is corrected, the corrected stress result can more accurately reflect the stress distribution condition of the hull beam under the target load, and compared with an existing method, the fitting precision of the method is greatly improved.

    本发明公开了基于目标值的邮轮整船有限元分析方法,涉及船舶结构设计领域;此方法包括建立整船有限元模型;采用多项式模拟目标载荷分布;目标载荷转化为分布力;施加分布力并计算实际值;计算传递函数;计算应力修正量;应力修正;结构强度评估;本发明通过数值方法将目标载荷转化为沿船长分布的分布力,得到的载荷为加载到模型上的载荷得到载荷的实际值;在通过传递函数工况得到应力结果,并根据应力结果计算单位弯矩和剪力在单元上引起的应力,应力计算即为传递函数,计算应力修正量;再对实际应力进行修正,修正后的应力结果可以更准确地反映船体梁在目标载荷下的应力分布情况,此方法相比现有方法在拟合精度上有了巨大的提升。


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    Title :

    Target value-based cruise ship whole ship finite element analysis method


    Additional title:

    基于目标值的邮轮整船有限元分析方法


    Contributors:
    ZHENG GANG (author) / SU YIHUA (author)

    Publication date :

    2024-01-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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