Shotgunner51
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China Outer Space Science, Technology and Explorations: News & Updates
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JSCh
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Micro satellite developed by Chinese university starts to work around Moon
Source: Xinhua| 2018-06-14 19:26:43|Editor: ZX
BEIJING, June 14 (Xinhua) -- A micro satellite, developed by the Harbin Institute of Technology in northeast China's Heilongjiang Province and sent into an orbit around the Moon, has started to transmit data back to Earth.
Two micro satellites, Longjiang-1 and Longjiang-2, were sent into space on May 21 together with the Chang'e-4 lunar probe's relay satellite from southwest China's Xichang Satellite Launch Center.
Longjiang-2 successfully reached its destination near the Moon on May 25, and entered a lunar orbit with the perilune at 350 km and the apolune at 13,700 km. However, Longjiang-1 suffered an anomaly and failed to enter lunar orbit, according to the China National Space Administration (CNSA).
Longjiang-2, weighing 47 kg, has become the world's first lunar orbiter developed by a university.
It carries an optical camera developed by the King Abdulaziz City for Science and Technology of Saudi Arabia, as well as a low-frequency radio detector developed by the National Space Science Center of Chinese Academy of Sciences.
The scientific instruments on the satellite have all started to work, CNSA said.
Shotgunner51
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JSCh
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China’s snake-like space robot ‘designed to move or manipulate a big object’
The robotic tentacle could crush a small satellite like ‘a python strangles its prey’ but that China does not plan to use it as a weapon, says observer.
www.scmp.com
JSCh
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来自 新版微博 weibo.com
关注
921新一代载人运载火箭三级半深空构型地月转移轨道运力27吨（瞄准载人登月任务），近地版两级光杆构型将实现一子级回收复用，系绳吊挂回收方式别出心裁。两级光杆构型近地轨道运力18吨，复用条件下近地轨道运力约为14吨（配合近地轨道版具备重复使用能力的新一代载人飞船效果更佳）。复用版一子级基于多机并联的YF-100K液氧煤油发动机进行动力减速，同时栅格舵控制飞行姿态，着陆末段通过多条系绳实现软着陆，如此设计可避免死重较大的着陆腿影响火箭运载系数。
pinnacle heights plus
22-2-18 11:29 from weibo.com
The 921 new-generation manned carrier rocket has a three-stage deep space configuration with a capacity of 27 tons for the earth-moon transfer orbit (targeting the manned lunar landing mission). The two-stage configuration of the near-earth version will realize first-stage recycling and reuse, and the tethered hanging recycling method is ingenious. The low-Earth orbit carrying capacity of the two-stage configuration is 18 tons, and the low-Earth orbit carrying capacity under the reuse condition is about 14 tons. (would be perfect to launch the reusable new generation manned spacecraft). The first stage of the reusable version is based on multiple YF-100K liquid oxygen and kerosene engine for power deceleration, while the grid rudder controls the flight attitude, and the final landing section uses multiple tethers to achieve a soft landing. This design can avoid heavy dead weight of the landing legs that affect the rocket load factor.
JSCh
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Asteroids, Hubble rival and Moon base: China sets out space agenda
In the next five years, the nation hopes to launch a robotic craft to an asteroid and two lunar missions.
www.nature.com
JSCh
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China's next-generation #rocket designed to carry astronauts will be multifunctional and partly reusable, according to a senior rocket scientist. #space #technologies
来自 新版微博 weibo.com关注921新一代载人运载火箭三级半深空构型地月转移轨道运力27吨（瞄准载人登月任务），近地版两级光杆构型将实现一子级回收复用，系绳吊挂回收方式别出心裁。两级光杆构型近地轨道运力18吨，复用条件下近地轨道运力约为14吨（配合近地轨道版具备重复使用能力的新一代载人飞船效果更佳）。复用版一子级基于多机并联的YF-100K液氧煤油发动机进行动力减速，同时栅格舵控制飞行姿态，着陆末段通过多条系绳实现软着陆，如此设计可避免死重较大的着陆腿影响火箭运载系数。
pinnacle heights plus
22-2-18 11:29 from weibo.com
The 921 new-generation manned carrier rocket has a three-stage deep space configuration with a capacity of 27 tons for the earth-moon transfer orbit (targeting the manned lunar landing mission). The two-stage configuration of the near-earth version will realize first-stage recycling and reuse, and the tethered hanging recycling method is ingenious. The low-Earth orbit carrying capacity of the two-stage configuration is 18 tons, and the low-Earth orbit carrying capacity under the reuse condition is about 14 tons. (would be perfect to launch the reusable new generation manned spacecraft). The first stage of the reusable version is based on multiple YF-100K liquid oxygen and kerosene engine for power deceleration, while the grid rudder controls the flight attitude, and the final landing section uses multiple tethers to achieve a soft landing. This design can avoid heavy dead weight of the landing legs that affect the rocket load factor.
View attachment 816458
View attachment 816457
JSCh
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【中科院与中国核动力研究设计院研发的新型钼合金可用于太空核反应堆的制造】近期，中科院合肥研究院固体所内耗与固体缺陷研究部与中国核动力研究设计院合作在高性能钼合金研究方面取得新进展。近期，中科院合肥研究院固体所内耗与固体缺陷研究部与中国核动力研究设计院合作在高性能钼合金研究方面取得新进展，相关研究成果以“Excellent high-temperature strength and ductility of the ZrC nanoparticles dispersed molybdenum”为题，发表在金属材料顶级期刊Acta Materialia（Acta Mater., 2022, DOI:10.1016/j.actamat.2022.117725）上。
空间核反应堆具有环境适应性好、功率覆盖范围广、结构紧凑以及大功率条件下质量功率比小等突出优点，在大功率地球轨道卫星、深空探测以及月球行星基地供电等方面具有广阔的应用前景。
China Aerospace
22-3-3 13:40
[The new molybdenum alloy developed by the Chinese Academy of Sciences and Nuclear Power Institute of China can be used in the manufacture of space nuclear reactors]
Recently, the Internal Friction and Solid Defect Research Department of the Institute of Solid State Physics, Hefei Institutes of physical science (HFIPS), Chinese Academy of Sciences (CAS), and Nuclear Power Institute of China have made new progress in the research of high-performance molybdenum alloys. The related research results are titled "Excellent high-temperature strength and ductility of the ZrC nanoparticles dispersed molybdenum", published in Acta Materialia (Acta Mater., 2022, DOI: 10.1016/j.actamat.2022.117725), a top journal of metal materials.
Space nuclear reactors have outstanding advantages such as good environmental adaptability, wide power coverage, compact structure, and low mass-to-power ratio under high-power conditions. It has broad application prospects in high-power earth-orbiting satellites, deep space exploration, and power supply for lunar bases.
New molybdenum alloy achieves breakthrough in strength and ductility
A kind of high-performance molybdenum alloy, nanoscale ZrC dispersion strengthened Mo alloy with high strength and excellent ductility, was fabricated recently by a collaborated research team from Institute of Solid State Physics, Hefei Institutes of physical science (HFIPS), Chinese Academy of...
www.eurekalert.org
JSCh
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Chinese scientists say they have developed new type of rocket engine清华大学来自 微博 weibo.com关注【祝贺！#清华自主研发新型发动机成功发射#】1月24日上午，清华大学航天航空学院王兵教授团队进行了自主研发的新型发动机飞行演示试验，发动机在预定的高度和速度范围内成功点火、稳定工作，试验取得圆满成功。试验表明，我国已经掌握该新型发动机的自主研发与工程实现能力，在新型空天动力领域跻身世界前列。#我国新型发动机飞行演示验证试验成功# #科研速递#
Tsinghua University
22-1-24 13:50 from Weibo
【congratulate! #Tsinghua independently developed a new engine successfully launched#]
On the morning of January 24, the team of Professor Wang Bing from the School of Aeronautics and Astronautics of Tsinghua University conducted a flight demonstration test of a new independently developed engine. The engine successfully ignited and worked stably within the preset altitude and speed range, and the test was a complete success. The test shows that my country has mastered the independent research and development and engineering realization capabilities of the new engine, and ranks among the world's forefront in the field of new aerospace power. #my country's new engine flight demonstration test was successful# #research express#
Excerpt from linked article,
上午11点30分，试验任务由“清航·大兴号”两级火箭助推执行。一级火箭分离后，二级火箭将任务段发动机推到预定高度和速度。发动机进气道实现高效吸气，供油系统将航空煤油雾化喷入燃烧室，点火系统顺利启动，燃烧室与发动机稳定工作，获得持续推力，试验取得圆满成功。
At 11:30 a.m., the test mission was carried out by the "Qinghang Daxing" two-stage rocket. After the first stage rocket is separated, the second stage rocket pushes the test engine to a preset altitude and speed. The engine air intake achieves efficient air intake, the fuel supply system sprays aviation kerosene into the combustion chamber, the ignition system starts smoothly, the combustion chamber and the engine work stably, and continuous thrust is obtained. The test was a complete success.
View attachment 810804
View attachment 810803
JSCh
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China has recently measured the global gravity field data for the first time using domestically-developed Tianqin-1 satellite, becoming the third country in the world to make such achievement, the chief scientist of the Tianqin program announced on Tuesday. #TwoSessions2022
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