我国新一代中型高轨运载火箭发展研究

新一代火箭CZ-5、CZ-6和CZ-7陆续首飞成功,拉开了我国运载火箭更新换代的序幕。新一代中型运载火箭CZ-7于2016年6月和2017年4月圆满完成了两次飞行任务,为中型运载火箭的研制奠定了坚实的基础。在CZ-7火箭基础上,增加CZ-3A氢氧三子级,在海南文昌发射GTO轨道卫星,运载能力不低于7.0t,可快速形成更新换代能力,填补我国GTO轨道该吨位的运载能力的空白。为了进一步提升我国运载火箭的竞争力,对标国际先进水平,针对新一代中型高轨运载火箭开展构型优化研究,以提高火箭性能,降低火箭成本,提升火箭的使用维护性能,满足后续GTO发射任务需求。

Research on the Development of New Generation Medium High-Orbit Launch Vehicle in China

As the new generation launch vehicles (CZ-5, CZ-6 and CZ-7) have made their maiden flights, it reveals the Chinese launch vehicles begin to upgrade. CZ-7, the new generation medium launch vehicle, has successfully completed two flight missions on June 2016 and April 2017 seperately, which provides firm foundations for developing the next generation medium launch vehicle. Based on CZ-7 and adding the third stage of CZ-3A, it may build up a new type of medium launch vehicle, with 7.0t capacity for GTO in Wenchang, Hainan. This type of launch vehicle can fill the gap of 7.0t GTO capacity in China. To enhance the competitiveness of Chinese launch vehicle and match the top level of the international launch vehicle, this paper studied the launch vehicle configuration optimization for new generation medium high-orbit launch vehicle. The research could benefit to increase the performance, save the cost and enhance the maintainability and satisfy the GTO launch missions in the future.