| 引用本文: | 郭鹏,程文科,秦子增.返回舱垂直着陆过程动力学研究.[J].国防科技大学学报,2010,32(6):93-99.[点击复制] |
| GUO Peng,CHENG Wenke,QIN Zizeng.Research on Dynamic Model of the Capsule's Vertical Landing[J].Journal of National University of Defense Technology,2010,32(6):93-99[点击复制] |
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| 返回舱垂直着陆过程动力学研究 |
| 郭鹏, 程文科, 秦子增 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 在考虑着陆场地面弹塑性特点的情况下，建立了返回舱垂直着陆过程的弹塑性接触模型。数值分析结果表明，返回舱的着陆过程与地面土壤的物理性质有很大关系，在相同的弹性模量下，土壤的极限应力越大，则着陆过载最大值就越大，着陆过程中的能量损失就越小，返回舱的“跳跃”现象越明显。 |
| 关键词: 返回舱 着陆场地面 弹塑性接触 极限应力 |
| DOI： |
| 投稿日期：2010-06-15 |
| 基金项目:国家部委资助项目(2009HK10015) |
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| Research on Dynamic Model of the Capsule's Vertical Landing |
| GUO Peng, CHENG Wenke, QIN Zizeng |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Considering the landing field's elastic-plastic characteristic, a model which took the capsule's vertical landing as an elastic-plastic contact problem was established. The numerical simulation indicated that the soil's bearing capability played an important role during the capsule's landing, with the same Young's modulus and Poisson's ratio: when the soil's bearing capability increases, the capsule gets bigger acceleration, less energy loss and higher bounce. |
| Keywords: capsule landing field elastic-plastic contact bearing capability |
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