| 引用本文: | 黄圳圭.再入弹头滚速过零与落点散布.[J].国防科技大学学报,1994,16(3):80-86 ，79.[点击复制] |
| Huang Zhengui.Zero Roll-Rate and Impact Dispersion of Ballistic Re-entry Missiles[J].Journal of National University of Defense Technology,1994,16(3):80-86 ，79[点击复制] |
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| 再入弹头滚速过零与落点散布 |
| 黄圳圭 |
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(国防科技大学 自动控制系 湖南 长沙 410073)
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| 摘要: |
| 滚转弹头的再入过程中，滚速过零对落点精度影响最大。本文分析了滚速过零的机理，推导了考虑滚动阻尼影响的过零高度公式，以及滚速过零影响下的落点散布公式。最后用六自由度弹道数字仿真结果同近似计算结果作了比较，比较结果表明了近似分析的可行性。 |
| 关键词: 滚动再入，配平状态，过零高度，落点散布 |
| DOI： |
| 投稿日期：1993-11-05 |
| 基金项目: |
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| Zero Roll-Rate and Impact Dispersion of Ballistic Re-entry Missiles |
| Huang Zhengui |
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(Department of Automatic Control)
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| Abstract: |
| One of the greatest impact dispersion is caused by zero roll-rate for spinning missiles during their re-entry flights. The mechanism of roll-rate through zero is analysed. The altitude of zero roll-rate for including roll damping influence and the impact dispersion as a result of zero roll-rate are formulaed. Finally，we compare six degrees of freedom simulation results of ballistic re-entry missiles motion with the computing results of approximate formula. The comparison shows the feasibility of the approximate analysis. |
| Keywords: spinning re-entry,trim state,zero roll-rate altitude,impact dispersion |
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