长征四号系列运载火箭研制改进与创新

Improvement and Innovation in the Development of Long March 4 Launch Vehicles

长征四号系列运载火箭是上海航天技术研究院抓总研制的三级常温推进剂运载火箭,面对高密度研制发射的形势,型号主动开展技术改进创新、积极推动“三个转变”,即保成功向高质量保证成功转变、作品向产品转变、研制向批产转变,取得了丰硕的应用成果,2021年以来发射任务连续超过10发,践行了“三高”发展要求。在长征四号系列运载火箭首个百次发射到来之际,文章系统总结了研制改进与创新成果,希望能给相关型号一些启发。

The LM-4 launch vehicles are three-stage vehicles with normal temperature propellants developed by the Shanghai Academy of Spaceflight Technology.Facing the high-density development and launch,the researchers of LM-4 launch vehicles have taken the initiative to carry out technological improvement and innovation,and have promoted the“three transformations”,including ensuring the success of high-quality,work-to-products,and the development of batch production.The LM-4 launch vehicles have achieved fruitful application results.Since 2021,the LM-4 launch vehicles have been launched more than 10 times annually,fulfilling the requirements of the“three high”development.When the arrival of the first hundred launches of the LM-4 launch vehicles,the achievements of improvement and innovation in the development were summarized systematically in this article,and inspiration for other related rockets was proposed.