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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?????¡¤??????????.?????????§¹????????8700m/s,??,?????????888. ??3. ????????????????????8700m/s?????????.?????¨¿????????????.???2,??????§¹???????,????????????§Ö????(?????,????,?ç¯?????)??????????H2??O2.???????????????????????????????? ??????????????? ??????????? ?????????????????????????????????????????????????????. ?????????????›ÔLEO??????.LEO??????,??????????????,????LEO???Üy???????§Ù?,???????¨°?????????.????????????????????????????????,?ËÆ?????????????¦Ç???,????????????.???????.???§Ó¦Ï????.???????????,??????????400kg ?????,??????????????.???????????????????¦Å???,???????????????????.?????????????????????:???????????????????,????????????????????60??.?????????????12???????????,???????????1000§³?/??,????????????????????,????????????????????????????????????????,?????????????????????,????????????,????????????,?????????????????????????????,??????????.?????????????????.??????????????????????????????????????????????¡¤??????????????????,??????????.??????????????????????????.?????????????2010??????????????,??2??~3?????. ??4 2010???????????????(?????Market Research at Ad Astra Rocket Company ??)???????????????:???œM??LEO????????30?????¡¤??,?¦Ï???4 ,??5000???/??????,?????1.5?????.30?????¡¤?????????????????????28§³???????LEO??????????.????12§³??????????ëµ??????????.???ÛF??????30????¡¤??,??????????LEO????????????????,??????????????????????????,??????????3?????.)??????????????????. ?????1 ????????????????????LEO???????????????????????2900m/s,??????????,???????????????????????2600m/s,????????›Ô????LEO???????????2400m/s.¦Ä????,??300m/s?????????????????????????????????,?????????????????????(??????????????????????10%?????.?????????????????????,??????????.?????????????,???????????????????,?????????????????????.???????????????????œM?,???????????????????.?????????????????????.?????????????????????§Ø????????????.????????,????????5??????????,???????§Û????????????????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????????????????????????§¹?????????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???????????????????.????§¹????4.2??.4.2???????????2????¡¤??.?????????????????????,??????????????LEO??????????????30??????????,??????????????????7.2??.?????4.0?????????.??????????20????????????????.(?????????????????-150??????.????§Ö???-183?????§Ö???-161?? ????????,????????????,?›¥?????›¥????.????????????????????????????????)??????????4.2+7.2+20=31.4?????,?¡Â???????œY??.???????????????????§Ø???????.(???????????????????,?????????????????????????????????????,????????????????????????????????????)??????????????????????????????????,?????????????.?¦Ê??????????????????????????????????????????????,?????????????????????????¡¤?????????????????????????????????.?¦Ï?????????????????????"???????????? ?????,??????????????????,????????????????????????????????15??.???????????????8??.?????????????8??.??????????????????§Û????????2015??~2016?????????????????????.???Ùã??????2014?????????????,?????????10???????????????›¥?õô??????,???õô????????????.?????6????????????????20???????.2015????¨®???5????,?????????10????????????????.?¡Â???????????????????.10?????????????5?????.???20????????,???30?????.2015??10?¡¤?,?¡Â????????????.???????????????????????.2015??11??,??????????,???????(8.5??)+?????????(10??)+?????(25??)????âì?????????.????????????2016??2??,??¨®??????.????????.????????????????10???????????????.2016??,?????????????????.??????????¡Â???.??2016????????????????????????.??¨®??????????????2????????10??????????????.?????????????,?????????§Û???????????????????????.?????????????180??.2017??3??,??¨®???5???????10???????????.?????§Û????????????¡¤.?§Û????????????????:?????????8??,?????3*8=24?????.?????????2??,?????2*2=4???????????????????õô???,???5?????????2?,?????2*2=4?????.?????????õô,????3?????.?????40?????.???40??????§Ù?????.??2013??2018????????80?????.???20?????.?????????120?????.2018???????,?????????????.????180????.?????¦Ç????2?????.??????????¦Å??????????????.??2020??2035?????????30?????,????????????????,??????.??2020??2035??15????????150??,?????10??????????????????????.???????????????????????1?????????????(?????????????????????),????????????????????????5?????/???(?????????),????????????1?????/???.???????????????????2?????/???.???????2?????/kg.??????????????????????????????.???????????????????.????????????,???????????50????????????????.???????????.????????????????????? ??????????????????????????§Ö?,????????????1.5~3?????/???,??????????????????????????????.???????????????????????LEO???????10????????????????,???????????????????????,?????????,??????????????,???§¹?????????15000m/s,?????????????????,?????????????????+???????.??????????????????????30~40??,?????????LEO??????????25~30??.?????LEO??????10?????.??????????????10?????.???????????????20??????.?????¦Ç???.????????????????,?????????????????????????????5000???/???.???????????›ÔLEO??????????. [ Last edited by ????730 on 2013-9-9 at 09:53 ]

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