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| 大长细比旋转式火箭弹柔性变形对弹道运动的影响 | |
| 引用本文： | 杨飞虎. 大长细比旋转式火箭弹柔性变形对弹道运动的影响[J]. 强度与环境, 2009, 36(1): 27-31 |
| 作者姓名： | 杨飞虎 |
| 作者单位： | 北京强度环境研究所,北京,100076 |
| 摘 要： | 为了研究柔性小变形对大长细比旋转式火箭弹弹道运动的影响，建立了旋转式火箭弹的刚柔耦合动力学模型。运用有限元法来解算弹体柔性小变形，运用弹道仿真来解算空间大运动，通过两种解算方法之间力和攻角的交换来完成刚柔耦合过程。对比了刚柔耦合模型和纯刚体模型的部分弹道。由对比可以看出弹体的柔性变形对火箭弹弹道影响很大，必须充分予以考虑。 |
| 关 键 词： | 柔性变形 刚柔耦合 弹道仿真 有限元法 |
The influence of flexibility on the ballistic motion of spinning rocket having high L/D ratios |
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| YANG Fei-hu. The influence of flexibility on the ballistic motion of spinning rocket having high L/D ratios[J]. Structure & Environment Engineering, 2009, 36(1): 27-31 | |
| Authors: | YANG Fei-hu |
| Affiliation: | Beijing institute of structure and environment;Beijing 100076;China |
| Abstract: | In order to research the influence of flexibility on the motion of spinning rocket having high L/D ratios,the rigid-flexible coupling dynamic model was established.The finite element method was used to calculate the vibration equations,and the ballistic simulation was used to calculate the ballistic trajectory.The angle of attack and the forces on the body were exchanged to calculate the coupling model.The rigid-flexible coupling dynamic model was compared to rigid dynamic model.Through the compare,the ball... |
| Keywords: | flexibility rigid-flexible coupling ballistic simulation finite element method |
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