Effects of exit losses on the performance of the Wells turbine;
余速损失对Wells透平性能影响
The limit velocity formula adapted for battle damage simulation was chosen, and the method of calculating the terminal velocity was proposed.
选择了适用于战斗损伤仿真的极限速度公式,并提出了剩余速度的求解方法。
The principles implied in the process of EFP(explosively formed projectile) impacting the plate covered explosive and the ceramic composite armor have provided the evidence for calculating the residual velocity of EFP(explosive formed projectile) impacting a new integrated armor,and a calculation model has been induced.
根据平板装药和陶瓷复合装甲与爆炸成型弹丸(EFP)相互作用的原理,提出了新型集成装甲与EFP作用的计算模型;据此模型进行了EFP残余速度计算,证明了在相同面密度的新型集成装甲和陶瓷复合装甲防护下,EFP的残余速度有明显差异;根据该计算模型可进行集成装甲的优化和EFP的反装甲目标设计。
Then we can formulate some empirical formulas about ballistics limit and residual velocity,which are based on a large number of computation data.
运用有限元模型仿真弹丸侵彻靶板的全过程,通过计算得到大量数据,然后在弹丸穿透平板时极限速度和剩余速度经验公式的基础上,来探讨弹丸穿透单筋板时的极限速度和剩余速度的经验公式。
This paper analyzes the impact damage forecast for the airplane structure from the following four aspects: ballistic limit, residual velocity, residual mass, forecast of damage size in structure penetrated or not penetrated, simultaneously discusses the development tendency of damage forecast and finally points out the main direction and means in the future damage forecast research.
从弹道极限、剩余速度、剩余质量、未击穿及击穿条件下损伤尺寸预测等方面对飞机结构撞击损伤的预测进行了分析,并对损伤预测的发展趋势进行论述,提出今后损伤预测研究的主要方向和手段。