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,,,,,,,(),11,,,F=LI2/2,(1)F(N)L(H/m)I(A)a=F/m=LI2/2m,(2)a(m/s2)m2(kg)(2),,,,,,,,(2)33,,,,F=IfIpdM/dx,(3)F(N)If(A)Ip(A)M(H)dM/dx(H/m)(3),,,,,(34191(109)©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.),4000m/s,,b=V1143m0175/K1143d1107,(4)b(dm)V(m/s)m(kg)Kd(dm),,,,,,,,,,,,,,,,,,80,,1982,317g4200m/s1992,9MJ,,,25t,25004000m/s9,9MJ20067,BAE,32MJ,64MJ432,,,,,,,,,,,,,;113cm2755kW/kg,,,,60%90%,,,,(),,,,,,432:,,-44©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=Em-Enh,,EmEnmn2,,,,,,,2,,,,,,(3)?,,,,,3,;,;,20,,,,,,(221000)54191(109)©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.