Design Considerations for an Electromagnetic Railgun Firing Intelligent Bursts to Be Used Against Antiship Missiles
Design Considerations for an Electromagnetic Railgun Firing Intelligent Bursts to Be Used Against Antiship Missiles
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DOI：
10.1109/tps.2015.2416774
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发表时间：
2015-04
影响因子：
1.5
通讯作者：
J. Gallant;Tom Vancaeyzeele;B. Lauwens;B. Wild;F. Alouahabi;Markus Schneider
中科院分区：
文献类型：
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作者：
J. Gallant;Tom Vancaeyzeele;B. Lauwens;B. Wild;F. Alouahabi;Markus Schneider
轨道炮可以达到比传统火炮更高的初速和射速。炮弹的初速可达2400米/秒，射速超过50赫兹，其质量为140克，平方口径为25毫米。我们研究了基于轨道炮的近防武器系统（CIWS）是否比传统的近防武器系统（如守门员）对来袭的反舰导弹表现更好，并提出了优化这种轨道炮性能的解决方案。CIWSs是防御来袭亚音速反舰导弹的作战系统。然而，未来的反舰导弹将是超音速的，更难以用常规火炮系统击败。轨道炮由于其更高的初速和射速，有望在应对这些未来威胁时表现更好。此外，单次爆炸的初速可以很容易地在不同的射击中变化，从而产生所谓的智能爆炸。它允许改变每个射弹的速度，使所有射弹同时到达目标。弹丸的数量，因此，实现一个目标的智能爆炸所需的电能，预计将低于轨道炮发射恒定初速。在第一部分中，通过计算炮弹在初速为1200 ~ 2400 m/s、射速为75 ~ 300发/s的条件下的爆炸命中概率的仿真模型，讨论了电磁CIWS的性能。目标的几何形状是典型的反舰导弹，其速度范围从亚音速（300米/秒）到超音速（600米/秒）。研究了弹丸质量对系统性能和所需电能的影响。我们证实，智能爆炸的概念减少了所需的电能，特别是针对超音速目标。第二部分论述了高射速轨道炮的一些技术问题。我们已经通过实验证明，自动装填系统可以将中口径轨道炮的射速从50赫兹提高到75赫兹。
Railguns can reach higher muzzle velocities and fire rates than conventional guns. Muzzle velocities up to 2400 m/s and fire rates of more than 50 Hz have already been demonstrated with projectiles having a mass of 140 g and a square caliber of 25 mm. We investigated if a close-in weapon system (CIWS) based on a railgun performs better against incoming antiship missiles than a conventional CIWS such as the goalkeeper and propose solutions to optimize the performance of such a railgun. CIWSs are operational systems that defend a ship against incoming subsonic antiship missiles. However, the future antiship missiles will be supersonic and more difficult to defeat with conventional gun systems. Railguns are expected to perform better against these future threats thanks to their higher muzzle velocity and fire rate. Furthermore, the muzzle velocity within a single burst can be varied easily from shot to shot, generating a so-called intelligent burst. It allows varying the velocity of each projectile such that all projectiles arrive on the target at the same time. The number of projectiles, and thus the electrical energy required to achieve a target kill with an intelligent burst is expected to be lower than for railguns firing at constant muzzle velocity. In the first part, the performance of an electromagnetic CIWS is discussed using simulation models calculating the hit probability of a burst of projectiles fired with muzzle velocities ranging from 1200 to 2400 m/s and fire rates ranging from 75 to 300 rounds/s. The geometry of the target is that of a typical antiship missile, its velocity ranges from subsonic (300 m/s) to supersonic (600 m/s). The influence of the projectile mass on the performance of the system and the required electric energy was also investigated. We confirmed that the concept of intelligent burst reduces the required electric energy, especially against supersonic targets. The second part deals with some technical aspects of high fire rate railguns. We have shown experimentally that an automatic loading system allows increasing the fire rate of a medium caliber railgun from 50 to 75 Hz.