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The Space Environment Monitors of Shenzhou Manned Spacecrafts 被引量:1
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作者 XU Ying ZHU Guangwu +9 位作者 WANG Shijin QIN Guotai LIANG Jinbao SUN Yueqiang HUANG Xiuying YANG Xiaochao WANG Yue WANG Chunqin YE Haihua JING Guiru 《空间科学学报》 CAS CSCD 北大核心 2004年第z1期32-38,共7页
For the purpose of ensuring normal operations of Shenzhou (SZ) series of manned spacecrafts and cosmonauts' safety, Space Environment Monitors (SEM)are mounted on board SZ-2, 3, 4, 5. SEMs aim to detect the high e... For the purpose of ensuring normal operations of Shenzhou (SZ) series of manned spacecrafts and cosmonauts' safety, Space Environment Monitors (SEM)are mounted on board SZ-2, 3, 4, 5. SEMs aim to detect the high energy particles, the low energy particles, charging potential, atmospheric desity and composition. Detection of SEMs enable us to understand better the space environment in the manned spacecraft's orbit, and to provide a good space environment services for the spacecraft and cosmonauts. In addition, by using the data from SEMs, we have achieved some scientific accomplishments, such as the energy spectra of precipitating electrons, the abnormal variety of atmospheric density and composition during geomagnetic disturbances, the electron angle distribution in the low orbit and so on. 展开更多
关键词 Shenzhou manned spacecrafts Space environment DETECT
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Three Major Tasks of The Tiangong 2 Space Laboratory
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作者 WEI Jinghua 《Aerospace China》 2016年第3期48-50,共3页
Since the successful launch on September 15,the Tiangong2 space laboratory mission commenced,5 years after the successful operation of the Tiangong 1 target spacecraft.Tiangong2 is the first spacecraft that was launch... Since the successful launch on September 15,the Tiangong2 space laboratory mission commenced,5 years after the successful operation of the Tiangong 1 target spacecraft.Tiangong2 is the first spacecraft that was launched into space as part of phase two of the second step of China’s manned space program.It is the first real space laboratory for the country.Compared with Tiangong 1, 展开更多
关键词 manned spacecraft maintenance launch conduct Major orbit verify overcome propellant
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China's First Space Laboratory Tiangong 2 Was Launched into Space Successfully
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作者 WEI Jinghua 《Aerospace China》 2016年第3期55-55,共1页
A LM-2F launch vehicle lifted off from the Jiuquan Satellite Launch Center at22:04 Beijing time on September 15,putting China’s first space laboratory Tiangong 2 into space.575 seconds after the liftoff,Tiangong 2 s... A LM-2F launch vehicle lifted off from the Jiuquan Satellite Launch Center at22:04 Beijing time on September 15,putting China’s first space laboratory Tiangong 2 into space.575 seconds after the liftoff,Tiangong 2 separated from the carrier rocket and entered its preset orbit.The launch achieved complete success. 展开更多
关键词 launch putting spacecraft rocket manned separated seconds orbit technological beginning
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LM-2F Carries out Shenzhou 11 Mission Successfully
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作者 YAO Tianyu 《Aerospace China》 2016年第3期54-54,共1页
At 7:30 Beijing time on Ocotber17,2016,a LM-2F launch vehicle soared up from the Jiuquan Satellite Launch Center,successfully putting the Shenzhou 11 spaceship and its crew into space.Two astronauts,JING Haipeng and ... At 7:30 Beijing time on Ocotber17,2016,a LM-2F launch vehicle soared up from the Jiuquan Satellite Launch Center,successfully putting the Shenzhou 11 spaceship and its crew into space.Two astronauts,JING Haipeng and CHEN Dong will carry out the 6th manned spaceflight mission of the country. 展开更多
关键词 manned putting launch Mission carry rocket spacecraft cargo verify maintenance
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Prediction of the trajectory of the manned spacecraft SHENZHOU-7 deploying a parachute based on a fine wind field 被引量:5
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作者 GUO ZhiMei MIAO QiLong +1 位作者 WANG ShuDong LI Huang 《Science China Earth Sciences》 SCIE EI CAS 2011年第9期1413-1429,共17页
Given that horizontal wind plays an important role in predicting the trajectory of the manned spacecraft SHENZHOU-7 when employing a parachute, the China Meteorological Administration conducted an experiment involving... Given that horizontal wind plays an important role in predicting the trajectory of the manned spacecraft SHENZHOU-7 when employing a parachute, the China Meteorological Administration conducted an experiment involving high-resolution wind ob servation, analysis and prediction between September 21 and 28, 2008. In this work, an algorithm for tracking a spacecraft de ploying a parachute is studied. High-resolution wind profiles obtained from a numerical weather model, upper-atmosphere soundings and mobile incoherent Doppler wind lidar are compared. Forward and backward trajectory predictions based on various wind profiles, as well as their differences, are presented. In addition, the trajectory of SHENZHOU-7 is predicted using different wind profiles, and the predicted parachute-opening and landing points are compared with the observed points. Results indicate that a high-resolution numerical weather model and fine observation data can offer more-detailed wind information for the prediction of spacecraft trajectories and can thus help in the editing and sending of flight commands, consequently increas ing the accuracy and reliability of landing on an assigned spot and reducing the search area and rescue time. 展开更多
关键词 fine wind field manned spacecraft SHENZHOU-7 PARACHUTE landing trajectory PREDICTION
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Experimental and computational investigation of adsorption performance of TC-5A and PSA-5A for manned spacecraft 被引量:4
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作者 Liu Meng Yang Dongsheng +2 位作者 Pang Liping Yu Qingni Huang Yong 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2015年第6期1583-1592,共10页
Two kinds of molecular sieve materials, TC-5A and PSA-5A, were produced to satisfy with special requirement of manned space flight. Their CO2 adsorption performances were investi- gated and compared through two experi... Two kinds of molecular sieve materials, TC-5A and PSA-5A, were produced to satisfy with special requirement of manned space flight. Their CO2 adsorption performances were investi- gated and compared through two experiments, the thermo gravimetric analysis (TGA) experiment and packed bed column experiment. Besides, some kinetic equations were compared according to the TGA experimental data, and their errors were analyzed. Finally, the classic linear driving force (LDF) model is improved to the new Avrami's model, and two models are analyzed based on the packed bed data. The TGA data shows that the CO2 loading has an approximately linear relation- ship with the CO2 concentration, and the best fit adsorption temperature range is from 283 to 303 K. The packed bed column results show that water vapor in air can affect the CO2 adsorption performance badly. The new Avrami's model is proved more suitable to reflect the complex adsorption mechanism for two molecular sieves. The materials are proved having much better adsorption capacity than the other adsorbents with room temperature and low CO2 concentration (≤ 1.0% in volume), and they can meet the aerospace requirements. This work will benefit the optimal design and simulation of the air revitalization (AR) system for Chinese manned spacecraft. 展开更多
关键词 CO2 adsorption Dynamic simulation Experimental analysis manned spacecraft Molecular sieve
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Optimal motion cueing algorithm for accelerating phase of manned spacecraft in human centrifuge 被引量:1
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作者 Ali MAHMOODI Isooda KAZEMI 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2020年第7期1991-2001,共11页
This paper presents a novel optimal Motion Cueing Algorithm(MCA)to control the rotations of a Human Centrifuge(HC)and achieve the best simulation of a Space Craft(SC)motion.Relations of the specific forces sensed by a... This paper presents a novel optimal Motion Cueing Algorithm(MCA)to control the rotations of a Human Centrifuge(HC)and achieve the best simulation of a Space Craft(SC)motion.Relations of the specific forces sensed by astronauts of the SC and the HC have been derived and linearized.A Linear Quadratic Regulator(LQR)controller is implemented for the problem which tends to minimize the error between the two sensed specific forces as well as control input in a cost function.It results in control inputs of the HC to generate its sensed specific force as close as possible to the one in the SC.The algorithm is implemented for both linearized and nonlinear portions of a US space shuttle mission trajectory as a verification using MATLAB.In longitudinal direction,the proposed MCA,works well when the acceleration is less than 2 g in which the tracking error does not exceed 12%.In lateral direction the tracking is much better even in nonlinear region since the error remains less than 7%for tilting up to 50°.Finally,the effect of weight matrixes in the LQR cost function on overall weight and power of the HC motion system is discussed. 展开更多
关键词 Accelerating phase Human centrifuge manned spacecraft Optimal motion cueing Specific force
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China Flies Spacecraft Capable of Manned Trip 被引量:1
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作者 Benjamin Kang Lim 郭秀滇 《当代外语研究》 1999年第12期1-2,共2页
1999年11月2日晨6时30分,在酒泉卫星发射中心,“神舟”号试验飞船被送入太空,在太空遨游了21小时后,飞船在内蒙古自治区中部地区成功着陆!是我国自1992年实施载人航天工程以来实现的重大突破! 根据飞行和工作方式的不同,载人航天器分... 1999年11月2日晨6时30分,在酒泉卫星发射中心,“神舟”号试验飞船被送入太空,在太空遨游了21小时后,飞船在内蒙古自治区中部地区成功着陆!是我国自1992年实施载人航天工程以来实现的重大突破! 根据飞行和工作方式的不同,载人航天器分为载人飞船,载人空间站和航天飞机三类。载人飞船按乘坐人数分为单人式飞船和多人式飞船,按运行范围分为卫星式载人飞船和登月载人飞船,载人空间站又称为轨道站或航天站。可供多名航天员居住和工作。航天飞机既可作为载人飞船和空间站进行载人航天活动,又是一种可重复使用的运载器。 目前,世界上只有美国和俄罗斯掌握了载人航天技术。前苏联于1961年4月12日发射了人类第一艘载人飞船,航天员加加林乘坐飞船绕地球一周并安全返回地面,美国于1962年2月20日发射了第一艘载人飞船。这两个国家在发射载人飞船之前,都进行过多次无人飞船发射试验。 本文报道了“神舟“号飞船九霄揽月的壮举,同时还提供了一些鲜为人知的背景资料。】 展开更多
关键词 载人飞船 载人航天 航天飞机 In China Flies Spacecraft Capable of manned Trip 载人空间站
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Space Cargo Service Now Available!
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作者 Ma Xiaowen 《Beijing Review》 2017年第18期36-37,共2页
China’s first cargo spacecraft is launched in preparation for future space stationScience f iction is becoming a reality with China’s first robotic cargo ship firmly anchored in space,paving the way for a manned spa... China’s first cargo spacecraft is launched in preparation for future space stationScience f iction is becoming a reality with China’s first robotic cargo ship firmly anchored in space,paving the way for a manned space station around 2022.Tianzhou-1,China’s first cargo spacecraft as well as its largest and heaviest spacecraft, 展开更多
关键词 cargo spacecraft manned firmly reality becoming captured rocket Russia ahead
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