摘要
针对小口径速射火炮的特点,将有限元法与模态叠加法结合起来对形状不规则身管的固有振动特性进行数值模拟。以某型小口径速射火炮为研究对象,计算身管的固有频率和对应的模态,得到的振动曲线可用于该型火炮的弹道修正以及射击频率的合理设置,该数值模拟具有重要的参考价值。
Aim at the characteristics of minor-caliber rapid-firing gun, finite element method and modal superposition method are combined in numerical simulation based on out-of-shape barrel＇s natural vibration characters. The gun body＇s natural frequency and modality are calculated though researching certain type of minor-caliber rapid-firing gun. The vibration curve can be used in ballistic modify and shooting frequency＇s setting for this type of gun. Therefore, the numerical simulation has vital reference value.
出处
《兵工自动化》
2008年第2期41-42,48,共3页
Ordnance Industry Automation
基金
总装司令部试验技术研究项目
关键词
数值模拟
固有振动
有限元法
模态叠加法
Numerical simulation
Natural vibration
Finite element method
Modal superposition method
