跨介质飞行器触水滑跳运动特性数值模拟

doi:10.12382/bgxb.2021.0164

摘要/Abstract

摘要： 受生活中水漂现象的启发，跨介质飞行器广泛采用灵活机动的滑跳运动模式，大大提高了海战武器的突防能力。基于数值模拟方法研究具有复杂构型的跨介质飞行器触水滑跳运动特性，重点分析入水参数对跨介质飞行器静水面的近水面滑跳运动过程影响。研究结果表明：针对所提跨介质飞行器，近水面滑跳运动可分为稳定滑跳阶段及水面滑行阶段，稳定滑跳阶段飞行器运动轨迹呈类正弦规律波动，逐次入水砰击瞬间飞行器均会受到较大的砰击载荷；跨介质飞行器入水速度v取值为10~55 m/s范围时，随着入水速度增大，可顺利实现近水面滑跳运动的入水俯仰角范围先增大后减小，入水速度为30 m/s时，飞行器入水俯仰角φ有效范围最大为-8°~10°；跨介质飞行器近水面滑跳运动过程中入水速度越大，砰击载荷越大、稳定滑跳次数越多、稳定滑跳距离越远；入水俯仰角φ为0°~5°时飞行器近水面稳定滑跳次数最多，滑跳距离最远，滑跳姿态最稳定。

关键词: 跨介质飞行器, 滑跳, 砰击载荷, 运动特性

Abstract: Inspired by the phenomenon of hydroplaning in life，the flexible skipping motion mode is widely used for trans-media aircraft，which greatly improves the penetration ability of naval weapons. The kinematic characteristics of a trans-media aircraft with complex configuration are studied numerically，and the influence of water-entry parameter on the skipping process of trans-media aircraft over calm water surface is emphatically analyzed. The research results show that the skipping process of trans-media aircraft over water surface can be divided into stable skipping phase and hydroplaning phase，the movement trajectory of trans-media aircraft at the stable skipping phase fluctuates in a sinusoidal pattern，and it is subjected to a large slamming load at every water contact moment. When the water-entry velocity of trans-media aircraft is in the range of 10-55 m/s，the water-entry pitch angle range of the aircraft can increases first and then decreases in the skipping process over water surface with the increase in the entry velocity. When the entry velocity is 30 m/s，the effective range of the water-entry pitch angle of the aircraft is from -8° to 10°.The greater the water-entry velocity is，the greater the slamming load is，the more the number of stable skipping is and the farther the stable skipping distance of the aircraft is. When the pitch angle of water-entry is from 0° to -5°， the trans-media aircraft has the most stable skipping times over the water surface，the longest skipping distance，and the most stable skipping attitude.

Key words: trans-mediavehicle, skipping, slammingload, motioncharacteristic

中图分类号:

TJ630.2

田北晨，刘涛涛，吴钦，黄彪. 跨介质飞行器触水滑跳运动特性数值模拟[J]. 兵工学报, 2022, 43(3): 586-598.

TIAN Beichen， LIU Taotao， WU Qin， HUANG Biao. Numerical Simulation on Kinematic Characteristics of Trans-media Aircraft during Water-skipping[J]. Acta Armamentarii, 2022, 43(3): 586-598.

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