杜尊峰, 慕旭亮, 李志军. 压浪板对高速两栖平台运动稳定性影响的数值分析[J]. 中国舰船研究, 2022, 17(3): 85–92. doi: 10.19693/j.issn.1673-3185.02331
引用本文: 杜尊峰, 慕旭亮, 李志军. 压浪板对高速两栖平台运动稳定性影响的数值分析[J]. 中国舰船研究, 2022, 17(3): 85–92. doi: 10.19693/j.issn.1673-3185.02331
DU Z F, MU X L, LI Z J. Numerical analysis of influence of stern flaps on motion and stability of high-speed amphibious platform[J]. Chinese Journal of Ship Research, 2022, 17(3): 85–92. doi: 10.19693/j.issn.1673-3185.02331
Citation: DU Z F, MU X L, LI Z J. Numerical analysis of influence of stern flaps on motion and stability of high-speed amphibious platform[J]. Chinese Journal of Ship Research, 2022, 17(3): 85–92. doi: 10.19693/j.issn.1673-3185.02331

压浪板对高速两栖平台运动稳定性影响的数值分析

Numerical analysis of influence of stern flaps on motion and stability of high-speed amphibious platform

  • 摘要:
      目的  压浪板对两栖平台的水上性能具有显著影响,需探讨滑行状态下压浪板对高速两栖平台航行姿态及运动稳定性的影响规律。
      方法  采用SST k-ω湍流模型以及重叠网格技术,对高速状态下两栖平台的静水直航进行CFD数值仿真计算,比较不同压浪板作用下平台姿态及稳定性的变化特性,并利用支持向量机(SVM)进行速度、重心位置等因素影响下平台运动稳定性边界的分类识别。
      结果  结果显示,压浪板通过改变平台底面的压力分布,可减小航行纵倾角,并且压浪板的下旋角度越大,对姿态稳定性的影响越显著;在重心位置相同的情况下,可提高平台稳定状态下能够达到的最大航速。
      结论  研究表明减摇附体的应用及运动稳定性的提高对两栖平台的高速化发展意义重大。

     

    Abstract:
      Objectives  Stern flaps have a significant impact on the water performance of high-speed amphibious platforms. This paper discusses the influence of stern flaps on the motion and hydrodynamic characteristics of a high-speed amphibious platform in a sliding state.
      Method  Using the SST k-ω turbulence model and overset grid technology, the CFD numerical simulations of an amphibious platform's high-speed navigation under static water conditions are performed, and the motion response and stability of the platform with different stern flaps are analyzed. Considering the influence of the velocity, center of gravity and angle of the stern flaps on the longitudinal motion of the platform, supporting vector machines are adopted to classify and recognize the boundary of its motion stability.
      Results  The results show that the stern flaps reduce the sailing trim angle by changing the pressure distribution on the underside of the platform, and the larger the rotation angle of the stern flaps, the more significant the influence on motion stability; when the position of the center of gravity is the same, the maximum speed of the platform in a stable state is increased.
      Conclusion  The application of stern flaps and the improvement of motion stability are of great significance for the development of high-speed amphibious platforms.

     

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