| 摘要: |
| 固体运载火箭作为我国航天运输系统的重要组成部分，具有整箭贮存、海陆通用、快速响应的特点，在军民商发射领域受到了广泛青睐。针对我国固体火箭运载能力在2~3 t（500 km太阳同步轨道）区间上存在“缺位”的现实，首先给出了一款运载能力约3 t的四级全固体运载火箭构型。随后建立了固体运载火箭三自由度弹道计算和优化模型，通过仿真手段分析了其典型弹道曲线特点，以及推重比、各级结构质量、末级装药量对运载能力的影响规律，为未来固体火箭的总体方案论证提供参考依据。 |
| 关键词: 四级固体运载火箭 弹道设计 运载能力 |
| DOI： |
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| 基金项目:国家自然科学基金（51906019） |
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| Four-Stage Solid Launch Vehicles Trajectory Designand Launch Capacity Analysis |
| HE Lei,ZHANG Wen,DONG Xiaobin |
| (Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China) |
| Abstract: |
| As an important part of China Space Transportation System, solid-propellant launch vehicles have a series of important characteristics, such as the whole rocket storage convenience, the universal launch from sea and land, and the rapid response etc. According to the lack of the launch capacity of our country's solid launch vehicle (SLV) at the level of 2~3 tons（500km Sun-Synchronous Orbit）, this paper first gives a configuration of a four-stage all-solid launch vehicle with launch capacity of about 3 tons. Next, the three-degree-of-freedom dynamic model for trajectory calculation and optimization was established, it will be used to analyze how the thrust-to-weight ratio, the structural coefficient of each sub-stage and the final stage's charge affect the rocket's launch capacity. It intends to provide a reference for the configuration selection and overall program demonstration of the future solid-propellant rockets. |
| Key words: Four-stage solid launch vehicle Trajectory design Launch capacity |