针对高速执法巡逻艇因火炮射击后坐力而导致的横向失稳问题，本文采用基于试验流体力学（EFD）的方法，对高速巡逻艇模型在航行中受外力冲击的运动横稳性进行敲击试验模拟。首先对巡逻艇模型开展静水面拖曳试验，选定敲击试验状态；然后开展不同重心高度、不同外力冲量、不同航速的敲击试验，研究以上因素对巡逻艇运动横稳性的影响规律。结果显示，模型重心高度越高、外力冲量越大、航速越低，将会导致巡逻艇模型的运动横稳性越差。研究表明，基于EFD的高速艇航行横稳性研究方法是可行的，对高速艇的型线优化设计及火炮系统选型具有重要意义。
In order to solve the problem of lateral instability of high speed law enforcement patrol boat caused by the recoil of artillery fire, this paper adopts the method based on Experiment Fluid Dynamics (EFD), the dynamic stability of a high-speed patrol boat model under the impact of an external force is simulated by a percussive test. First, the model of patrol boat is tested by dragging on the surface of still water, and then the percussive test is carried out with different center of gravity height, different external impulse and different speed, the influence of above factors on the transverse stability of patrol boat is studied. The results show that the higher the height of the center of gravity, the higher the external impulse and the lower the speed, the worse the transverse stability of the model will be. The results show that the EFD method is feasible, which is of great significance to the shape optimization design of high-speed craft and the selection of artillery system.
2023,45(16): 17-20 收稿日期：2022-7-14
DOI：10.3404/j.issn.1672-7649.2023.16.004
分类号：V661.3
基金项目：民机专项研究项目（MJZ-2018-F-10）
作者简介：王飞(1974-),男,高级工程师,研究方向为船舶作战系统总体设计
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