CAJ | 학술논문

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.
채용자주개발적공간쇄편풍험평고급방호계통(MODRASS),대재인비선조우공간쇄편팽당풍험진행방진평고화분석,급출궤도경각、궤도고도급운행자태등인소대재인비선조우공간쇄편팽당풍험적영향특성.결과표명,재인비선재불동경각적궤도상조우공간쇄편팽당풍험불동,재170°경각궤도상,재인비선조우적팽당수최다,이재20°～60°급110°좌우경각적궤도상,재인비선조우공간쇄편팽당적정황명현개선,불동궤도경각하적팽당풍험차별가체10배이상.재인비선재불동궤도고도상조우공간쇄편팽당풍험차이흔대,재궤도고도위1400km시,재인비선조우공간쇄편팽당수최다;이재궤도고도위200km시,재인비선조우공간쇄편팽당수부410881개,상차량개수량급.차외,재인비선이불동자태운행시,조우공간쇄편팽당풍험불동,차조우공간쇄편팽당적구역야출현명현변화,가이통과조정재인비선적운행자태감소공간쇄편위협.
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 colhsion area. So adjusting the operating attitude of the manned spacecraft can reduce the threat of orbital debris.