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The influencing factors of the impact risk of manned spacecraft include orbit inclination angle, orbital altitude and spacecraft attitude. It is shown that different inclination angles affect the impact risk of manned spacecraft against orbital debris in the orbit in the manner that in the orbit with 170° inclination angle, the manned spacecraft may encounter the most frequent collisions; in the orbit with inclination angle between 20° and 60° and also near 110°, the impact risk would decrease greatly. The collision risk at different orbital altitudes could have a difference of above 10 times. At the orbital altitude of 1400km, the manned spacecraft would encounter most frequent collisions; however, at the orbital altitude of 200km, the number of collisions is reduced to 410881, a difference of two orders of magnitude.. In addition, the operating attitude of the manned spacecraft also affects the impact risk against the orbital debris and the collision area. 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科技导报
|研究论文
2010
, 28
(1002) :
34
-38
轨道参数对载人飞船遭遇空间碎片碰撞风险影响
全屏
余庆波1 ,王海福1 ,王辉2 ,肖艳文3
作者信息
1. 北京理工大学;爆炸科学与技术国家重点实验室,北京 1000812. 中国兵器科学院,北京 1000893. 总装备部武汉军代局驻襄樊地区军代室,湖北襄樊 441021
通讯作者:
王海福
Effect of Orbit Parameters on Manned Spacecraft Impact Risk Against Orbital Debris
Affiliations
出版时间: 2010-01-28
文章导航
采用自主开发的空间碎片风险评估及防护系统(MODRASS),对载人飞船遭遇空间碎片碰撞风险进行仿真评估和分析,给出轨道倾角、轨道高度及运行姿态等因素对载人飞船遭遇空间碎片碰撞风险的影响特性。结果表明,载人飞船在不同倾角的轨道上遭遇空间碎片碰撞风险不同,在170°倾角轨道上,载人飞船遭遇的碰撞数最多,而在20°~60°及110°左右倾角的轨道上,载人飞船遭遇空间碎片碰撞的情况明显改善,不同轨道倾角下的碰撞风险差别可达10倍以上。载人飞船在不同轨道高度上遭遇空间碎片碰撞风险差异很大,在轨道高度为1400km时,载人飞船遭遇空间碎片碰撞数最多;而在轨道高度为200km时,载人飞船遭遇空间碎片碰撞数仅410881个,相差两个数量级。此外,载人飞船以不同姿态运行时,遭遇空间碎片碰撞风险不同,且遭遇空间碎片碰撞的区域也出现明显变化,可以通过调整载人飞船的运行姿态减小空间碎片威胁。
The Meteoroid and Orbital Debris Risk Assessment and Shielding System (MODRASS) is used to simulate and assess the impact risk of manned spacecraft against orbital debris. The influencing factors of the impact risk of manned spacecraft include orbit inclination angle, orbital altitude and spacecraft attitude. It is shown that different inclination angles affect the impact risk of manned spacecraft against orbital debris in the orbit in the manner that in the orbit with 170° inclination angle, the manned spacecraft may encounter the most frequent collisions; in the orbit with inclination angle between 20° and 60° and also near 110°, the impact risk would decrease greatly. The collision risk at different orbital altitudes could have a difference of above 10 times. At the orbital altitude of 1400km, the manned spacecraft would encounter most frequent collisions; however, at the orbital altitude of 200km, the number of collisions is reduced to 410881, a difference of two orders of magnitude.. In addition, the operating attitude of the manned spacecraft also affects the impact risk against the orbital debris and the collision area. So adjusting the operating attitude of the manned spacecraft can reduce the threat of orbital debris.
manned spacecraft
/
orbital debris
/
risk assessment
余庆波;王海福;王辉;肖艳文.
轨道参数对载人飞船遭遇空间碎片碰撞风险影响.
科技导报,
2010
, 28
(1002)
: 34
-38
.
.
Effect of Orbit Parameters on Manned Spacecraft Impact Risk Against Orbital Debris[J].
Science & Technology Review ,
2010
, 28
(1002)
: 34
-38
.
2010年第28卷第1002期
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接收时间:2009-08-12
首发时间:2010-01-28
出版时间:2010-01-28
收稿日期:2009-08-12
修回日期:2009-12-25
https://castjournals.cast.org.cn/joweb/kjdb/CN/1242119467329720434
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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