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China Outer Space Science, Technology and Explorations: News & Updates

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#我国亚轨道重复使用演示验证项目运载器首飞成功#】7月16日,由@中国航天科技集团 一院研制的亚轨道重复使用演示验证项目运载器在酒泉卫星发射中心准时点火起飞,按照设定程序完成飞行后,平稳水平着陆于阿拉善右旗机场,首飞任务取得圆满成功。​
发展重复使用天地往返航天运输技术是我国由航天大国迈向航天强国的重要标志,亚轨道重复使用运载器可作为升力式火箭动力重复使用航天运输系统的子级,是航天航空技术的高度融合体。​
该项目的圆满成功,为我国重复使用天地往返航天运输技术发展奠定了坚实基础,为实现领域创新发展和自主可控迈出了坚实的第一步。​

China Aerospace News
7-16 19:16

[China suborbital reusable demonstration project vehicle successfully flies for the first time]

On July 16, the sub-orbital reusable demonstration project vehicle developed by the China Academy of Launch Vehicle Technology of China Aerospace Science and Technology Corp. ignited on time at the Jiuquan Satellite Launch Center. After completing the flight according to the set procedure, it landed at Alxa Right Banner Airport smoothly and horizontally. The first flight mission was a complete success.

The development of reusable earth-space space transportation technology is an important symbol of China transition from a space nation to a space power. The suborbital reusable carrier can be used as first stage of reusable rocket powered lifting body space transportation system, and has a high degree of fusion of space and aviation technology.

The complete success of this project has laid a solid foundation for the development of China reusable space transportation technology. A solid first step has been taken to achieve innovative development and independence in this field.
 
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#我国亚轨道重复使用演示验证项目运载器首飞成功#】7月16日,由@中国航天科技集团 一院研制的亚轨道重复使用演示验证项目运载器在酒泉卫星发射中心准时点火起飞,按照设定程序完成飞行后,平稳水平着陆于阿拉善右旗机场,首飞任务取得圆满成功。​
发展重复使用天地往返航天运输技术是我国由航天大国迈向航天强国的重要标志,亚轨道重复使用运载器可作为升力式火箭动力重复使用航天运输系统的子级,是航天航空技术的高度融合体。​
该项目的圆满成功,为我国重复使用天地往返航天运输技术发展奠定了坚实基础,为实现领域创新发展和自主可控迈出了坚实的第一步。​

China Aerospace News
7-16 19:16

[China suborbital reusable demonstration project vehicle successfully flies for the first time]

On July 16, the sub-orbital reusable demonstration project vehicle developed by the China Academy of Launch Vehicle Technology of China Aerospace Science and Technology Corp. ignited on time at the Jiuquan Satellite Launch Center. After completing the flight according to the set procedure, it landed at Alxa Right Banner Airport smoothly and horizontally. The first flight mission was a complete success.

The development of reusable earth-space space transportation technology is an important symbol of China transition from a space nation to a space power. The suborbital reusable carrier can be used as first stage of rocket powered reusable space transportation system, and it is a highly modular aerospace technology.

The complete success of this project has laid a solid foundation for the development of China reusable space transportation technology. A solid first step has been taken to achieve innovative development and independence in this field.
This one looks very cool. Any more detailed information of it?
 
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10:52, 21-Jul-2021
China reports latest findings from space science programs
CGTN

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Depiction of the Taiji-1 satellite.

The Chinese Academy of Sciences (CAS) on Tuesday released details of the most recent scientific achievements from its space science programs, including space-based gravitational wave detection, space microgravity experiments, and the observation of black-hole explosions.

According to the academy, the Taiji-1, China's first satellite to conduct experiments on key technologies related to space-based gravitational wave detection, has completed all preset experimental tasks. It has accomplished the highest degree of precision in space laser interferometry so far in China.

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Depiction of the SJ-10 satellite.

Meanwhile, the SJ-10, China's first satellite to conduct microgravity experiments, has for the first time achieved the development of a cell embryo to a blastocyst under microgravity conditions, revealing the key factors affecting early embryo development of mammals in a space environment.

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Depiction of China's Hard X-ray Modulation Telescope, "Insight."

China's Hard X-ray Modulation Telescope, known as "Insight," clearly observed the panoramic view of the explosion of black hole binaries for the first time.

The three satellites were all deployed by the CAS as part of its space-science pilot project, which was formally established in 2011.

The CAS will continue to strengthen research in space science areas such as the extreme universe, space-time ripples, sun-earth panorama, and habitable planets in order to better understand the universe, said Wang Chi, director of the National Space Science Center under the CAS.

(All photos courtesy of the National Space Science Center of the CAS)

Source(s): Xinhua News Agency
 
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Progress on 220-ton staged combustion cycle hydrogen-oxygen engine YF-90


China航天
11月6日 18:47
【大推力补燃循环氢氧发动机氧涡轮泵与预燃室联动试验圆满成功】2020年11月2日,北京航天动力研究所所在北京进行了大推力补燃循环氢氧发动机氧涡轮泵与预燃室联动试验,试验取得圆满成功。试验验证了大推力补燃循环氢氧发动机核心组件的技术方案正确性、工作协调性及生产、试验工艺可行性。本次试验是在前期预燃室热试验、氢涡轮泵与预燃室联动试验等大量试验基础上进行的最具代表性和里程碑意义的热试验,标志着我国突破了大推力补燃循环氢氧发动机系统技术及高压大流量预燃室、高效多级涡轮泵等核心组件的关键技术,为工程研制奠定了坚实的技术基础。

大推力补燃循环氢氧发动机性能指标达到国际先进水平,是航天强国的重要标志,是航天动力先进技术的重要代表,能更好地满足我国未来火箭和重大航天任务对动力的需求。大推力补燃循环氢氧发动机的研制能够填补我国氢氧发动机型谱和技术空白,并对诸多基础学科和工业领域有巨大的牵引带动作用。

后续研制队伍将不忘初心、牢记使命、再接再厉,全力推进后续研制工作,力争早日进行大推力补燃循环氢氧发动机整机试验,为我国氢氧发动机技术攀登世界高峰、为建设航天强国做出贡献。(北京航天动力研究所)


China Aerospace
November 6 at 18:47

[High-thrust staged combustion cycle hydrogen-oxygen engine oxygen turbo pump and preburner linkage test successfully]


On November 2, 2020, Beijing Aerospace Propulsion Institute conducted high-thrust staged combustion cycle hydrogen-oxygen engine's oxygen turbo pump and preburner linkage test in Beijing. The test was a complete success. The test verifies the correctness of the technical scheme, systemic operational coordination, and feasibility of the test production method for the core components. This test is carried out on the basis of a large number of previous tests such as the preburner thermal test, the hydrogen turbo pump and preburner linkage test, etc. It marks a breakthrough in China's high-thrust staged combustion cycle hydrogen-oxygen engine system technology with key technology such as high-pressure large-flow preburner, high-efficiency multi-stage turbo pump and other core components. It laid a solid technical foundation for further engineering development.

The performance index of the high-thrust staged combustion cycle hydrogen-oxygen engine has reached the international advanced level. It is an important symbol of advanced aerospace power technology. It can better meet the propulsion needs of China's future rockets and major space missions. The development of the high-thrust staged combustion cycle hydrogen-oxygen engine can also fill the gaps in the type family and technology of China’s hydrolox engine, and has a drive on effect on many basic disciplines and industrial fields.

The follow-up development team will not forget the original mission, keep the mission in mind, make persistent efforts, and fully promote the follow-up development work, and strive to carry out the complete test of the high-thrust staged combustion cycle hydrogen-oxygen engine as soon as possible, so as to help China’s hydrolox engine technology to climb the world's peak and contribute to the building of a space power nation. (Beijing Aerospace Propulsion Institute)

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From 220吨级补燃循环氢氧发动机完成首台工程样机生产:

220吨级补燃循环氢氧发动机完成首台工程样机生产
北京航天动力研究所 今天​
近日,重型运载火箭220吨级补燃循环氢氧发动机完成首台工程样机生产,标志着该发动机关深阶段研制工作圆满完成。​
220吨级补燃循环氢氧发动机是我国重型运载火箭的芯二级发动机,性能指标达到国际先进水平,能更好地满足我国未来运载火箭和重大航天任务的动力需求,是航天强国的重要标志之一。​
在关深阶段研制过程中,研制团队边论证、边设计、边生产、边验证,实现了四大技术跨越,即“一年完成论证设计、两年完成关键组件生产、三年实现预燃室等组件试验、四年完成预燃室-氢/氧涡轮泵联动分系统试验”,初步突破了补燃循环起动关机过程控制、大流量高压预燃室、先进制造技术等9大关键技术。发动机推力、真空比冲、推重比等技术指标达到国际先进水平,形成多项核心自主知识产权,实现了对设计技术、试验方法等的全方位创新,并首次实现了氢氧发动机全数字化研制,为发动机后续工程研制奠定了坚实的基础。目前,发动机各项研制工作正有序推进,已完成发动机试车台选址、建台方案论证设计,今年将完成半系统试验和整机试验验证。​
220吨级补燃循环氢氧发动机性能和技术指标刷新了我国氢氧发动机的纪录,其研制能够填补我国氢氧发动机型谱和技术空白,并对诸多基础科学和工业领域有巨大的牵引带动作用。​
The 220-ton staged combustion cycle hydrogen-oxygen engine completed the production of the first engineering prototype
Beijing Aerospace Propulsion Institute
today

Recently, the heavy-duty carrier rocket's 220-ton staged combustion cycle oxyhydrogen engine has completed the production of the first engineering prototype, marking the successful completion of the development of the engine at the advance stage.

The 220-ton staged combustion cycle hydrogen-oxygen engine is the core second-stage engine of my country's heavy-duty carrier rockets. Its performance indicators have reached the international advanced level. It can better meet the power needs of my country's future carrier rockets and major space missions. It is one of the important symbols of a space power.

In the development process of the advance stage, the development team achieved four major technological leapfrogs while demonstrating, designing, producing, and verifying, namely, “complete demonstration and design in first year, complete production of key components in second years, and realize pre-combustion chamber in third years. and complete the test of the pre-combustion chamber-hydrogen/oxygen turbo pump linkage subsystem in fourth years.", preliminary breakthroughs have been made in 9 key technologies such as the control of the start-up and shutdown process of the staged combustion cycle, the large-flow and high-pressure pre-combustion chamber, and advanced manufacturing technology. Engine thrust, vacuum specific impulse, thrust-to-weight ratio and other technical indicators have reached the international advanced level, formed a number of core independent intellectual property rights, realized all-round innovations in design technology, test methods, etc., and realized the full digital development of hydrogen and oxygen engines for the first time. It laid a solid foundation for the development of future engine. At present, various engine development work is proceeding in an orderly manner. The site selection of rocket engine test facility and construction design plan have been completed. This year, the semi-system test and the whole engine verification test are expected to be completed.

The performance and technical indicators of the 220-ton staged combustion cycle oxyhydrogen engine set the record of my country’s oxyhydrogen engine. Its development can fill the gap in the type spectrum and technology of my country’s oxyhydrogen engine, and has a huge traction effect on many basic science and industrial fields. .

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清华大学研制的重力与大气科学卫星——这是我国首个专用于重力与大气科学测量的卫星,其主要目标是进行低轨大气密度和重力场联合探测。卫星采用纯球形的新颖构型,可以保证大气阻力与卫星姿态无关,从大大提高大气密度测量的精度。为保证卫星供电充足,团队设计了球面太阳电池阵列,并攻克了小曲率球面贴装工艺的难题。为了解决发射飞行过程中球形卫星锁紧、释放的可靠性问题,团队自主研发了电磁型点式分离机构,这种分离机构具有微冲击、无污染、可地面重复使用的优点,是飞行器在锁紧释放技术领域的重要突破。​
来源:中国网科技​

China Aerospace
Today at 18:30

The Gravity and Atmospheric Science Satellite developed by Tsinghua University

This is China's first satellite dedicated to the measurement of gravity and atmospheric science. Its main goal is to conduct joint detection of low earth-orbit atmospheric density and gravity field. The satellite adopts a novel configuration of pure spherical shape, which can ensure that the atmospheric resistance has nothing to do with the satellite orientation/attitude, thereby greatly improving the accuracy of atmospheric density measurement. In order to ensure sufficient power supply for the satellite, the team designed a spherical solar cell array and overcame the problem of the small curvature spherical surface mounting process. In order to solve the reliability problem of the locking and release of the spherical satellite during launch and flight, the team independently developed an electromagnetic point-type separation mechanism. This separation mechanism has the advantages of micro-impact, no pollution, and reusability on the ground. An important breakthrough in the field of satellite lock-release technology.
Source: China Net Technology

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Gif source: 重力与大气科学卫星:寰宇苍穹 创新筑梦-清华大学
Interesting to compare this low-cost version with above from Tsingtua university.

 
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