衛(wèi)星發(fā)射對(duì)空間碎片環(huán)境影響分析
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圖1災(zāi)難性碰撞次數(shù)和非災(zāi)難性碰撞次數(shù)隨時(shí)間的變化??Fig.?1?Cumulated?number?of?catastrophic?and??non-catastrophic?collisions??
與方案2情況相反.??方案4A將基本方案中發(fā)射數(shù)量減半,單個(gè)發(fā)射??物體廣量和面積相座加倍;方案4B將基本方案中發(fā)??射數(shù)置加倍,單個(gè)發(fā)射物體質(zhì)量和面積相應(yīng)減半,單??個(gè)物體面質(zhì)比與基本方案保持一致■??1.2碰撞水平變化仿真分析??災(zāi)難性碰撞定義為碰撞能童大予40?Ig-1的事....
圖3各方案中新增碎片、完整物體(包括衛(wèi)星、火箭殘骸和任務(wù)相關(guān)物體)、舊碎片及其總數(shù)隨時(shí)間的變化??Fig.?3?Number?of?new?debris,?intact?(including?the?satellite,?rocket?body?and?mission?related?objects),??old?debris?and?its?
和發(fā)射質(zhì)量減半??來(lái)減少災(zāi)難性碰撞次數(shù)???分析非災(zāi)難性碰撞次數(shù)的結(jié)果可得相同結(jié)論,但??是三個(gè)影響因素對(duì)非災(zāi)難性碰撞次數(shù)的影響比對(duì)災(zāi)??難性碰撞更大.??Chin.?J.?Space?Sci.空間科學(xué)學(xué)報(bào)?2020,40(3)??1.3未來(lái)空間碎片數(shù)量演化和分析??定義新增碎片....
圖4各方案新增碎片、完整物體(包括衛(wèi)星、火箭殘骸和任務(wù)相關(guān)物體)、舊碎片及其總數(shù)相對(duì)基本方案的比例??Fig.?4?Proportion?of?the?number?of?new?debris,?intact?(including?the?satellite,?rocket?body?and?mission?related??objects),?old?
^.0033??0.6415?0.6323?I?|?|??I??2.0??1.8??1.6??1.4??1.2??1.0??0.8??0.6??0.4??0.2??Base?1A?IB?2A?2B?3A?3B?4A?4B??(c)??1.0000?0.9981?0.9998?0.....
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