[Objectives]The collective protection system is an essential part of surface ship defense. In order to solve the overpressure value of the collective protection system of surface ships,[Methods]the overpressure value of the collective protection system of an entire ship is calculated by theoretical analysis, a simplified physical model and mathematical model of a foreign frigate are created,and an analysis of the overpressure value of the collective protection system is carried out by simulating the pressure distribution of the entire ship under different wind directions and speeds.[Results]The simulation results show that the pressure distribution of an entire ship is extremely non-uniform,increasing from bow to mast until it reaches the maximum,then decreasing dramatically until it presents negative pressure after the stern. It can be concluded that the overpressure value of a surface ship is influenced by wind direction and speed, and each section of a surface ship's overpressure value should be set according to its pressure distribution. [Conclusions]The simulation results of the overpressure value of a surface ship can provide data to support the design of collective protection systems;combined with the pressure distribution of a surface ship,it can also provide useful references for the design of collective protection systems.%[目的]集体防护系统是水面舰船防护的重要组成部分.为解决水面舰船集防系统的超压值设定问题, [方法]通过理论分析集防系统的超压值,并建立国外某护卫舰的简化物理模型和数学模型,模拟不同风向和风速下全舰的压力分布,开展集防系统的超压值仿真分析.[结果]仿真结果表明,从舰艏到舰艉的压力分布极不均匀,其中桅杆处的正压力最高,之后迅速降低至负压,且逐渐增加的负压一直延续到舰艉;全舰超压值的设定受风向和航速的影响,应根据压力分布对超压值进行分段设置.[结论]研究成果可为我国水面舰船集防系统的超压值设置和优化设计提供数据参考.
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