摘要
简要介绍了水下枪弹运动速度的测量原理、方法,根据实验数据探讨了水下枪弹运动速度与位移的关系,由能量守恒定律分析了水下枪弹运动速度-阻力曲线。由计算表明,在此不宜根据一般流体阻力与速度的平方关系来建立水下弹丸速度-阻力模型,建立了适合于水下弹丸运动的速度-阻力回归模型。
The principle and method of measuring underwater bullet are introduced. The relations between speed and displacement of underwater bullet are discussed briefly based on experimental data. The curve of speed and drag force of underwater bullet is analyzed on the basis of law of conservation of energy. Indicated by calculation,it is not reasonable to model the speeddrag force of underwater bullet by virtue of general ralation that fluid resistance is proportional to second power of the speed. At last, an reasonable model on the speed and the drag force of underwater bullet is established.
出处
《火炮发射与控制学报》
北大核心
2002年第1期37-39,共3页
Journal of Gun Launch & Control
关键词
速度测量
阻力分析
水下弹丸
回归分析
水下枪弹
Speed measurement
Drag force analysis
Underwater bullet
Regression analysis
