| 摘要: |
| 基于边界元方法建立了水下航行体出水姿态计算模型，包括各控制方程及边界条件，采用截平面方法对航行体出水模型进行了简化处理，并将所得结果和实验数据进行比对，发现二者符合良好，验证了数值模型的有效性。运用边界元法研究了规则波浪参数（波高、浪向、周期、相位）对出水姿态的影响。研究结果表明，波高影响波浪力幅值大小，对出水姿态参数有着直接的影响，波高越大对出水姿态参数的影响越大；浪向、初相位和周期主要影响流体质点的运动方向，改变波浪附加惯性力，影响波浪力对出水姿态参数的作用效果；受到出水相位的影响，出水俯仰角和俯仰角速度呈余弦变化规律；随着周期的增大，周期对航行体出水姿态参数的影响逐渐减小，此时，相同波高下出水姿态参数只受到出水相位的影响。 |
| 关键词: 航行体出水 规则波浪 俯仰角 俯仰角速度 边界元 |
| DOI： |
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| 基金项目:国家自然科学基金青年科学基金项目（52001095）；国家自然科学基金企业创新发展联合基金重点支持项目（U20B2005）；装备预先研究领域基金项目（61402070113） |
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| Analysis of the Influence of Regular Waves on the Water-Exiting Attitude Parameters of Underwater Vehicle |
| ZHI Mingyang,MA Guihui,REN Zeyu,ZHAO Jianzhou |
| (College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150000，China) |
| Abstract: |
| A calculation model of water-exiting attitude of underwater vehicle which includes the basic governing equations and boundary conditions is established based on boundary element method.The water-exiting stage of the underwater vehicle is simplified by using the cross-section plane method.By comparing the results with the experimental data, it is found that they are in good agreement with each other, which verifies the effectiveness of the numerical model.Some researches about the influence of regular wave parameter (wave height， wave direction， period and phase) on water-exit attitude is studied by using the BEM.The results show that the wave height affects the amplitude of the wave force and has a direct influence on the water-exit attitude parameters.The greater the wave height is, the greater the influence is on the water-exit attitude parameters.The wave direction, initial phase and period mainly affect the motion direction of the fluid particles, change the additional inertia force of the wave, and change the effect of the wave force on the water-exiting attitude parameters of the vehicle.Affected by the water-exiting phase, the water-exiting pitch angle and pitch angular velocity shows the law of cosine change.With the increase of the period, the influence of the period on the attitude parameters of the underwater vehicle decreases gradually, and in this case, the water-exiting attitude parameters are only affected by the water-exiting phase. |
| Key words: Water exit of vehicles Regular wave Pitch angle Pitch angular velocity Boundary element |