| 摘要: |
| 在运载火箭的总体设计中,火箭长细比是一个非常重要的设计参数,它对火箭构型方案的确定、箭体直径的选取等具有决定性影响,通常需要综合权衡载荷、结构效率、姿控稳定性、生产制造以及运输等多方面的因素来确定，火箭长细比设计对箭体直径统一、火箭型谱研究也有重要意义。梳理了火箭长细比设计过程中应遵循的原则,简要介绍了火箭长细比优化设计的方法和途径,并分析了长细比对运载火箭设计的主要影响。 |
| 关键词: 运载火箭；长细比设计 姿态控制 |
| DOI： |
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| 基金项目:航天系统部专用技术项目（30506030101） |
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| The Research of Liquid Launch Vehicle Slenderness Ratio Design |
| LI Pingqi,HE Wei,YANG Yunfei |
| (Beijing Institute of Astronautical Systems Engineering) |
| Abstract: |
| The slenderness ratio is a very important parameter in the general design of launch vehicles. It is one of the crucial factors for rocket configurations and size (diameter) selection. Normally, the slenderness ratio should be balanced over multiple considerations such as structure load, structure efficiency, attitude control stability, manufacture process and transportation constraints. Slenderness ratio design is significant for uniform diameter and product serization study. In this paper, the principles in the design of rocket slenderness ratio and its optimization design methods are introduced. Moreover, the main influences of slenderness ratio on the design of launch vehicles are analyzed. |
| Key words: Launch vehicle Slenderness ratio Attitude control |