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lmy-2020新蟲(chóng) (初入文壇)
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[交流]
[轉(zhuǎn)載]載人登月的新途徑?感覺(jué)有點(diǎn)不可思議. 已有2人參與
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http://www.guokr.com/post/469646/ http://www.guokr.com/post/469646/ ?????????????? ??1 ??????????????????(????????????????????)???1 ???,?????LEO?????????????????∆V?6000m/s??????mi/mf=2,???,???????C=6000/0.69??8700m/s ??2 ???????????????.(????????)???2. ???,?????????LEO???????????20?????????????????,????????10?????·??????????.?????????Ч????????8700m/s,??,?????????888. ??3. ????????????????????8700m/s?????????.?????ǹ????????????.???2,??????Ч???????,????????????е????(?????,????,?綃?????)??????????H2??O2.???????????????????????????????? ??????????????? ??????????? ?????????????????????????????????????????????????????. ?????????????浽LEO??????.LEO??????,??????????????,????LEO???躽???????з?,???????ò?????????.????????????????????????????????,?似?????????????η???,????????????.???????.???вο????.???????????,??????????400kg ?????,??????????????.???????????????????ε???,???????????????????.?????????????????????:???????????????????,????????????????????60??.?????????????12???????????,???????????1000С?/??,????????????????????,????????????????????????????????????????,?????????????????????,????????????,????????????,?????????????????????????????,??????????.?????????????????.??????????????????????????????????????????????·??????????????????,??????????.??????????????????????????.?????????????2010??????????????,??2??~3?????. ??4 2010???????????????(?????Market Research at Ad Astra Rocket Company ??)???????????????:???淢??LEO????????30?????·??,?ο???4 ,??5000???/??????,?????1.5?????.30?????·?????????????????????28С???????LEO??????????.????12С??????????氳??????????.???跢??????30????·??,??????????LEO????????????????,??????????????????????????,??????????3?????.)??????????????????. ?????1 ????????????????????LEO???????????????????????2900m/s,??????????,???????????????????????2600m/s,????????浽????LEO???????????2400m/s.δ????,??300m/s?????????????????????????????????,?????????????????????(??????????????????????10%?????.?????????????????????,??????????.?????????????,???????????????????,?????????????????????.???????????????????淢?,???????????????????.?????????????????????.?????????????????????ж????????????.????????,????????5??????????,???????й????????????????5?????,???5~8???????????????????.) ??5 ????????????????J-2????(?????): 200,000 ???? (890 kN)??????: 500 s???: 418 s (4099 m/s)(??????????545S)????: 3,480 ?? (1,579 kg)????????: 3,609 ?? (1,637 kg)????????: 27.5 to 1?????: LOX & LH2??????: 5.50???????3000m/s=C*X12700m/s=C*X22500m/s=C*X3??J-2????????????????????????Ч?????????4000m/s.???????X1=0.75,X1=0.675,X1=0.625.???e^X1=2.117,e^X2=1.964,e^X3=1.86.????LEO????????30??,?????????????M=30/2.117/1.964=7.2??.???7.2??????3.0???????????????????.????Ч????4.2??.4.2???????????2????·??.?????????????????????,??????????????LEO??????????????30??????????,??????????????????7.2??.?????4.0?????????.??????????20????????????????.(?????????????????-150??????.????е???-183?????е???-161?? ????????,????????????,?洢?????洢????.????????????????????????????????)??????????4.2+7.2+20=31.4?????,?÷???????淵??.???????????????????ж???????.(???????????????????,?????????????????????????????????????,????????????????????????????????????)??????????????????????????????????,?????????????.?κ??????????????????????????????????????????????,?????????????????????????·?????????????????????????????????.?ο?????????????????????"???????????? ?????,??????????????????,????????????????????????????????15??.???????????????8??.?????????????8??.??????????????????й????????2015??~2016?????????????????????.???巽??????2014?????????????,?????????10???????????????洢?豸??????,???豸????????????.?????6????????????????20???????.2015????ó???5????,?????????10????????????????.?÷???????????????????.10?????????????5?????.???20????????,???30?????.2015??10?·?,?÷????????????.???????????????????????.2015??11??,??????????,???????(8.5??)+?????????(10??)+?????(25??)????忪?????????.????????????2016??2??,??ó??????.????????.????????????????10???????????????.2016??,?????????????????.??????????÷???.??2016????????????????????????.??ó??????????????2????????10??????????????.?????????????,?????????й???????????????????????.?????????????180??.2017??3??,??ó???5???????10???????????.?????й????????????·.?й????????????????:?????????8??,?????3*8=24?????.?????????2??,?????2*2=4???????????????????豸???,???5?????????2?,?????2*2=4?????.?????????豸,????3?????.?????40?????.???40??????з?????.??2013??2018????????80?????.???20?????.?????????120?????.2018???????,?????????????.????180????.?????η????2?????.??????????ε??????????????.??2020??2035?????????30?????,????????????????,??????.??2020??2035??15????????150??,?????10??????????????????????.???????????????????????1?????????????(?????????????????????),????????????????????????5?????/???(?????????),????????????1?????/???.???????????????????2?????/???.???????2?????/kg.??????????????????????????????.???????????????????.????????????,???????????50????????????????.???????????.????????????????????? ??????????????????????????е?,????????????1.5~3?????/???,??????????????????????????????.???????????????????????LEO???????10????????????????,???????????????????????,?????????,??????????????,???Ч?????????15000m/s,?????????????????,?????????????????+???????.??????????????????????30~40??,?????????LEO??????????25~30??.?????LEO??????10?????.??????????????10?????.???????????????20??????.?????η???.????????????????,?????????????????????????????5000???/???.???????????浽LEO??????????. [ Last edited by ????730 on 2013-9-9 at 09:53 ] |
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