大型低温液体火箭“零窗口”发射技术

我国大型低温液体运载火箭组成系统多、各系统耦合关联程度大、射前流程复杂，实现“零窗口”发射难度大。基于大型低温液体运载火箭的系统特点和射前约束条件，提出了实现“零窗口”发射的技术方案。通过能力挖潜主动拓展了任务故障适应性和窗口宽度，并辅以科学的测试发射策略，将技术和流程相结合，共同实现大型低温运载火箭“零窗口”发射目标。这对全面提升大型运载火箭和发射场“零窗口”发射能力、适应未来航天发展需求具有十分重要的意义。

Zero Window Launch Technology of Large Cryogenic Liquid Rockets

The large cryogenic liquid rockets of China are composed of multiple systems, with a high degree of coupling and correlation between each system, and a complex pre-launch process, making it difficult to achieve zero window launch. Based on the system characteristics and pre-launch constraints of large cryogenic liquid rockets, a technical scheme is proposed to realize zero window launch, actively expands the mission fault adaptability and window width through capability exploitation, and supplemented by scientific test launch strategies, combines technology and process to jointly realize the zero window launch of large cryogenic liquid rockets. It is of great significance to comprehensively enhance the zero window launch capability of large cryogenic liquid rockets and launch sites, and to meet the future space development needs.