X形艉水下航行体姿态角对舵水动力特性的影响

Hydrodynamic characteristics of underwater vehicle with X-rudder configuration coupling with incidence and rudder angle

    摘要
  • 摘要:
      目的  X形艉布局的水下航行体及操纵策略特殊，受主体姿态角影响的X形艉舵特性与十字形艉布局的不同。
      方法  基于SUBOFF模型的X形艉布局方案，通过数值计算分析变单舵、变单舵耦合攻角以及变单舵耦合漂角时的操纵性水动力特性，并按照现有的船标推荐公式，对舵角/姿态角耦合下的操纵性水动力特性进行拟合研究。
      结果  结果表明，X形艉水下航行体变单舵时，舵与主体间存在较强的相互作用，使得两个正交平面内的水动力（矩）存在差异；区别于无主体姿态角时的X舵水动力特性，耦合主体姿态角后的X舵水动力特性明显受到主体的影响。在研究的姿态角及舵角范围内，右上舵和左下舵舵效分别随姿态角的增大而减小和增大。舵导数相对变化量值最大达16%。
      结论  研究结果可为X形艉水下航行体操控及仿真评估分析提供参考。

     

    Abstract:
      Objective  Due to the different arrangement and control mode of an underwater vehicle with an X-rudder configuration, the effectiveness of the after-control-surface is influenced by the angle of incidence of the underwater vehicle.
      Methods  Numerical simulation is carried out on SUBOFF model with an X-rudder configuration, including variations of single rudder coupled with attack angle and drift angle respectively, along with fitting research for each case.
      Results  The results show that the hydrodynamic characteristics related to rudder angle for the two orthogonal planes are different because of the significant interaction between the rudder and main body. The effectiveness of the top right rudder and lower left rudder decreases and increases with the incidence angle respectively for the studied range of incidence and rudder angle, and is also different from its straight running conditions. The relative change of the rudder derivative is up to 16% in quantity.
      Conclusion  This study can provide references for the motion modeling and simulation evaluation of underwater vehicles with an X-rudder configuration.

     

    • HTML全文
    • 参考文献(13)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回