More than One year ago on 24th November 2020, the Chang Zheng – Long March Five Carrier Rocket Launched away in CNSA – China National Space Administration China Wenchang spaceport launch, Change Five Lunar probe into orbit, opened up towards China – People’s Republic of China’s first celestial bodies sample return trip from Mons Rumker on the Lunar Surface of the moon New research achievements – Chinese scientists reveal the composition of lunar soil minerals and space wind at the landing site of Chang’e 5
The fourth phase of the lunar exploration project has been approved, and the basic production of Chang’e-6 products has been completed…… The CNSA- China National Space Administration announced yesterday that China- People’s Republic of China’s lunar exploration project has made new progress. The fourth phase of the lunar exploration project has been approved by the state and is progressing smoothly. According to sources, the fourth phase of the lunar exploration project includes the Chang’e 6, Chang’e 7 and Chang’e 8 missions, which will be implemented successively in the next ten years. Among them, Chang’e 6 is the backup of Chang’e 5, which has the function of sampling and returning, and will go to the far side of the moon to perform missions. The production of Chang’e 6 has basically been completed. Combined with the first visit of Chang’e 4 to the back of the moon, after the demonstration of engineers and scientists in the early stage, the back of the moon is also taken into consideration. ….
Via CNSA China Space Administration –CLEP China Lunar Exploration project management office
中国空间站 On currently on 29th July 2022 2022, the Belt and Road Initiative CNSA –China National Space Administration on the currently developments of the latest progress of China’s Chang Zheng – LongMarch manned lunar landing carrier rockets Science and Technology Daily reporters learned from the First Academy of China Aerospace Science and Technology Corporationon July 28 2022 that the 702 Institute of the Academy recently successfully completed the multi-machine parallel static-motion joint test of my country’s new generation of manned launch vehicles. It strongly supported the smooth transition of the development of this type of rocket to the initial stage.
China- People’s Republic of China’s moon landing rocket has completed the multi-engine parallel static and dynamic test and began to manufacture, and the first flight may not be far away
China’s new generation of manned rockets has made important progress! According to news from the First Academy of China Aerospace Science and Technology Corporation published by the “Science and Technology Daily” and other media on July 28th 2022, the 702 institutes affiliated to the academy have recently successfully completed the multi-machine parallel static-motion joint test of my country’s new generation of manned launch vehicles. The first step of this type of rocket will be transferred to the initial sample development stage.
At present, my country’s only manned rocket is the Long March 2F rocket, which is especially responsible for transporting China- People’s Republic of China’s Shenzhou spacecraft and Takionauts to the sky. My country’s new generation of manned rockets is a rocket with larger and more advanced capacity. It is also the “921 rocket” that netizens have often said over the years. In fact, its real code name is “CZ-5DF”, which means Chang Zheng- Long March 5. The series of lunar rockets are exactly the rockets prepared for my country’s manned lunar landing.
According to the published data, this rocket is about 100 meters high. After successful development, it will be the highest rocket before the appearance of the Long March 9. It is about the height of a 33-story building, which should be higher than the building you live in. Well, isn’t it shocking?
And it will also be the largest rocket before the appearance of the Long March 9 carrier rocket, with a diameter of 5 meters, the same as the Long March 5, but its shape is very different from the Long March 5, because it adopts the CBC configuration, but It is not a “triple version of Chang 5”, it is not the configuration of the three core-stage rockets of the current Long March 5, because it is not composed of three core-stage rockets of the Long March 5. There are only two YF-77 liquid hydrogen-oxygen engines with a thrust of only 100 tons. The thrust of the Fat Five mainly relies on four bundled boosters. Each booster is equipped with two YF-100 engines with a thrust of 240 tons. , the thrust of the four boosters reached 960 tons, which together contributed to the 1060-ton thrust of the Long March-5 first-stage rocket.
The new generation of manned rockets with This type of rocket weighs about 2,200 tons and is a three-stage and a half configuration. The capacity of the Earth-Moon transfer orbit will not be less than 27 tons, which can meet the capacity requirements for launching China’s new generation of manned spacecraft (within 25 tons in weight). It can also meet the upward mission of large spacecraft in low-Earth orbit, because the orbital carrying capacity of low-Earth orbit will reach more than 70 tons.
Take China’s space station as an example. After the Wentian experimental module was docked, the total weight of China’s space station assembly has now reached 66 tons, and China’s new generation of manned rockets can be sent into orbit with one launch mission. Zhu Xiquan, deputy chief designer of the 702 Institute, said: The successful completion of the parallel static-dynamic joint test of my country’s new generation of manned rockets marks the first time that my country has broken through the large-load static-dynamic joint test technology of launch vehicles. The test with the largest scale, the most technical difficulty and the most complex test process has laid a solid foundation for the new generation of manned launch vehicles to adopt the parallel technology of multiple high-thrust engines.
According to the plan, this rocket will be the main launch vehicle for manned moon landing missions in China in the next 20 to 30 years, so it can also be called China’s first-generation “moon landing rocket”. It is significant, marking that China’s manned lunar landing rocket has entered a substantial manufacturing moment. After the manufacturing is completed, it will be a test flight. It was previously reported that the first flight will be completed before 2025. It can be seen that the first flight is not far away! Moreover, this type of rocket will also expand the recovery and reuse capabilities of the take-off stage in the future, that is, to create a reusable rocket like Musk’s Falcon rocket, which can also greatly reduce the launch cost.
References :”Science and Technology Daily” July 28 article “China’s new generation of manned rockets has made important progress “
中国空间站 On currently on 29th July 2022 2022, the Belt and Road Initiative CNSA –China National Space Administration on the currently developments of the latest progress of China’s Chang Zheng – LongMarch manned lunar landing carrier rockets Science and Technology Daily reporters learned from the First Academy of China Aerospace Science and Technology Corporationon July 28 2022 that the 702 Institute of the Academy recently successfully completed the multi-machine parallel static-motion joint test of my country’s new generation of manned launch vehicles. It strongly supported the smooth transition of the development of this type of rocket to the initial stage.
The key point is in picture 1 also pictured on the header. The pull rods carrying 350 tons and the thrust of 2800 tons are installed in the 8 columns. Obviously, this test is the core stage (refer to Figure 2), and the thrust of the entire rocket (including the two boosters) is to transmit from this.
This is the new ultra heavy large Chang Zheng –Long March domestically made Carrier rocket that I am most looking forward to, and it is the key model for realizing the dream of manned lunar moon landing…..
This test is an important test to verify the key technologies of multi-machine parallel connection and bottom-box force transmission of a new generation of manned launch vehicles. Wang Xiaohui, director of the 702 Institute, said that the successful completion of the test marks the first time that my country has broken through the large-load static-dynamic joint test technology. It is an important innovation in test methods and test capabilities. Solid foundation.
“This is the largest, most technically difficult, and most complicated test ever conducted in the field of mechanical testing in my country.” Zhu Xiquan, deputy chief designer of the 702 Institute, introduced that the test needs to break through the static thrust of multiple engines under actual flight conditions Combined loading with vibration load involves key test technologies such as vibration elastic boundary simulation, nearly 1,000-ton static load elastic loading, and multi-machine combined multi-dimensional vibration control and loading under large static load.
The new-generation manned launch vehicle base stage module has a diameter of 5 meters and is equipped with multiple 120-ton engines. Zhu Xiquan said that the high-thrust engine multi-machine parallel technology is the first time that my country’s launch vehicle has adopted it, which brings about the coupling effect of static and dynamic forces of complex structures and the nonlinear transmission problem under the action of combined loads. One of the key technologies to deepen research. In order to analyze and solve this problem and verify the effectiveness of the design scheme, the technical team designed and implemented the first multi-machine parallel static and dynamic joint test in my country.
Since 2019, the 702 Institute has demonstrated and determined the experimental technical plan with relevant units. According to the plan, the team successively broke through the key technologies required for the test, and this year developed a static and dynamic load consisting of 28 sets of 50-ton oil and gas support systems, multiple sets of 20-ton induction shaking tables and a set of 1,000-ton vibration elastic boundary systems. Combined loading test system…
More than One year ago on 24th November 2020, the Chang Zheng – Long March Five Carrier Rocket Launched away in CNSA – China National Space Administration China Wenchang spaceport launch, Change Five Lunar probe into orbit, opened up towards China – People’s Republic of China’s first celestial bodies sample return trip from Mons Rumker on the Lunar Surface of the moon in which now on the week of 12th July a new series Popular Science Documentary named the “The Magical Chang’e 5” Popular Science Documentary Officially Released in Beijing- China – People’s Republic of China…
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On July 12th 2022, the popular science documentary “The Magical Chang’e 5” jointly produced by the National Space Administration and the China Association for Science and Technology was officially released in Beijing. Shu Wei, secretary of the Secretariat of the China Association for Science and Technology, and Dong Baotong, deputy director of the National Space Administration, attended the press conference and delivered speeches. Hu Hao, the chief designer of the third phase of the lunar exploration project, and relevant comrades from the China Association for Science and Technology, the National Space Administration, the Space Foundation, and the engineering research and development units attended the conference- press conference.
On December 17, 2020, the Chang’e 5 mission, the third phase of the lunar exploration project, obtained 1,731 grams of lunar samples and returned to Earth, realizing the millennium dream of the Chinese nation “to embrace the moon in nine days”, and promoting human lunar sample research into the “Chang’e Era”. Chang’e 5 is not only a historical achievement of scientific and technological innovation, but also has a very high value for popular science. Show the lunar exploration journey of Chang’e 5 in the way of popular science, and tell the technological breakthrough of Chang’e 5 in the language of popular science, give full play to the social efficiency of major projects, and promote the process of popularization of scientific and technological resources.
Scientific and technological innovation and scientific popularization are the two wings to realize innovation and development. The popular science documentary “The Magical Chang’e 5” focuses on the key links of the Chang’e 5 mission from launch to home. It reproduces the magical journey of Chang’e’s lunar exploration in the form of records + popular science, and uses the form of documentary + animation It describes the scientific principles of Chang’e’s lunar exploration, which is a beneficial exploration of the combination of scientific and technological innovation and scientific popularization.
At the press conference, three senior consultants of the lunar exploration project sent messages via video. Academician Luan Enjie, the first commander-in-chief of the lunar exploration project, said that our lunar exploration project has embarked on a lunar exploration road with Chinese characteristics. Academician Ouyang Ziyuan, chief scientist of the Chang’e-1 lunar application system, said that “The Magical Chang’e-5” is China’s first all-round, multi-dimensional and three-dimensional science popularization work based on the lunar exploration project. Academician Ye Peijian, chief designer and commander of the Chang’e-1 probe, said that the core technology can only rely on self-reliance. They believe that “The Magical Chang’e 5” will surely plant spiritual seeds in the hearts of young people and take our exploration to a deeper space.
As of Month of 7th July 2022, The CNSA –China National Space AdministrationCLEP- China Lunar Exploration Program Belt and Road Initiative Lunar Mission……Chang’e-4 with Yutu two the Lunar rover still working exploring more than moved more than 1239.88 meters on the other side of the moon on the 103 Kilometers Diameter Von Karman Crater in which is least than two length by length fifty five Kilometers Hong Kong –Macau- Zhuhai Bridges …. Working Exploring the Crater on the other side of the Moon Chang’e Luna…. Chang’e-4 completed the 44th day of work, and the results revealed the cause of the abnormal area of the Moon’s South Pole-Aiken ….composition travelling The “Yutu 2” lunar rover and lander of the Chang’e The total mileage of the lunar rover on the far side of the moon is 1239.88 meters
The South Pole-Aiken Basin is the largest impact basin on the Moon, with a diameter of over 2,400 kilometers. The study of the South Pole-Aiken Basin is of great significance for revealing the origin of the lunar asymmetry, the impact process, the early evolution process and the composition of the deep material. Orbital remote sensing observations show that there is a compositional anomaly in the center of the Antarctic-Aiken Basin. The planetary science team of Shandong University analyzed and interpreted the in-situ visible and near-infrared spectral data of the Yutu-2 lunar rover and found that the lunar crust is the Antarctic-Aiken composition anomaly. The main material source provides important constraints for the future exploration of materials in the Antarctic-Aiken Basin and even the deep parts of the moon.
The main material components on the lunar The material composition at the bottom of the South Pole-Aiken Basin is abnormal, and the content of mafic silicate minerals and iron is significantly higher than that in the peripheral area of the basin (Figure 1).
Figure 1. The distribution of iron and pyroxene content inside and outside the Antarctic-Aiken Basin
Most of the previous studies on the material composition of the Antarctic-Aiken Basin only focused on mafic minerals. Due to the anomalous characteristics of mafic in this region, there has even been a debate about whether the lunar mantle is peridotite or pyroxene. Although according to the lunar magma ocean hypothesis, olivine and pyroxene are the main minerals of the lunar mantle, the plutonic magma intrusion after the formation of the lunar crust can also form rocks rich in olivine or pyroxene in the lunar crust, so olivine is enriched Or pyroxene does not serve as evidence of origin from the lunar mantle. So far, humans have not obtained samples from the Antarctic-Aiken Basin and returned to Earth, and their trace elements and isotopic characteristics cannot be known. Among the material composition information available through remote sensing or in situ detection, the plagioclase content also distinguishes crust-derived and mantle-derived rocks. key indicators.
Figure 2. Mineral composition and source reservoir of Chang’e-4 landing area
The content of plagioclase in the material of the Antarctic-Aiken composition anomaly area sputtered by the Finsen Numerical simulation studies believe that during the excavation process of the South Pole-Aiken impact, the lunar crust has been completely stripped, but in the subsequent transformation stage, the collapse of the instantaneous crater wall may cause the lunar crustal material to slip off the bottom of the basin. In addition, other basin impact events after the Antarctic-Aiken impact event also produced a backfilling effect on the bottom of the Antarctic-Aiken Basin, and the exposed lunar mantle material or impact melting products during the formation of the basin is likely to have been diluted by the lunar crust material. Mineralogical and geochemical unmixing analysis results show that the lunar soil on the surface of the anomalous area is composed of about 70% of the lunar crust material and about 30% of the material enriched in iron and incompatible elements.
The first author of this research is postdoctoral fellow Chen Jian of Shandong University, and the corresponding author is Professor Ling Zongcheng, head of the planetary science team of Shandong University and senior researcher of the Center for Excellence in Comparative Planetology, Chinese Academy of Sciences. It was published in The Astrophysical Journal Letters, an international astronomy journal …..
Images and visuals are from their Respectives source CLEP – China Lunar Exploration Project
