基于参轨综合优化的组合动力可重复使用运载器性能提升

Performance Improvement of Combined Cycle Engine Reusable Launch Vehicle Based on Parameters and Trajectory Overall Optimization

可重复使用运载器是实现快速、廉价、可靠天地往返运输的重要途径,而组合动力系统为其提供了更加高效、灵活的动力形式。首先对组合动力技术的基本原理、结构分类、研究计划等方面的研究现状进行了阐述,然后通过两级分层和一体化参/轨综合优化方法,分别对运载器总体设计参数和轨迹进行优化,实现了总体设计效率和飞行性能的提升,并仿真对比分析了两种算法的有效性和适应性,可为组合动力重复使用运载器设计提供一定参考。

Reusable launch vehicle is an important way to realize fast,cheap and reliable space transportation. And the combined cycle engine system provides a more efficient and flexible form of power. The investigation on the research status of the combined cycle engine technology,including the basic principle,research programs,structure classification,etc. is firstly discussed in this paper. Then,the overall design parameters and trajectory of the vehicle are analyzed through the bilevel hierarchical and integrated parameters and trajectory overall optimization method,which is realized the improvement of overall design efficiency and flight performance. And simulations are implemented to compare and analyze the effectiveness and adaptability of the two algorithms,in order to provide a certain reference for the design of combined cycle engine reusable launch vehicles.