针对舰艇破损进水运动中受波浪激励作用可能出现的非线性横摇运动问题，推导和构建了舰艇破损进水非线性横摇运动数理模型，对具有Ⅲ类进水舱的破损舰艇受不同波浪激励条件下的横摇运动开展数值模拟仿真。选取试验船模为研究对象，研究破损舰艇在不同波浪激励下的横摇运动，确定可能出现的混沌参数区域。研究结果表明，具有Ⅲ类进水舱的破损舰艇横摇运动形式很丰富，可能是单频的，也可能包含超谐、次谐以及组合频率等频率成分，还可能是混沌的。同时，研究中发现具有Ⅲ类进水舱的破损舰艇出现混沌区域需要的激励力矩范围超过实际能达到的范围，因此实际过程中不会出现混沌运动，与选取船模试验结果相一致。
In view of the possible nonlinear rolling phenomenon caused by wave excitation in the damaged warship, the mathematical model of nonlinear rolling movement of damaged water inflow of warship is derived and constructed. The numerical simulation of rolling motion of damaged warship with class III water inflow tank under different wave excitation conditions is carried out. The experimental model is selected as the research object to study the rolling motion of damaged warship under different wave excitation, and determines the possible chaotic parameter region. The results show that the roll motion of the damaged ship with class III inlet tank is very rich, which may be single frequency, multi-frequency or combined frequency, and chaos. At the same time, it is found that the range of the excitation torque needed for the chaotic region of the damaged ship with class III inlet tank is beyond the actual range, so there will be no chaotic motion in the actual process, which is consistent with the ship model test results.
2021,43(8): 34-37 收稿日期：2020-05-07
DOI：10.3404/j.issn.1672-7649.2021.08.007
分类号：U661.3
基金项目：国家自然科学基金资助项目(5140090291)
作者简介：刘辉(1983-),男,博士,讲师,研究方向为舰艇安全技术与工程
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