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1、 TH,ijL?p/,Ot= LRLHi= 0,m5( c)wLa,5i= U2mZ sinh- RLL U2mZ sinh t. ( 20)3)LRLTH,i/y,t1HYiX/lONH/AM,7f/t2t1Ml,5i(t2)i(t1 )= U2mZ sinhe-RLL + hk . ( 21)T( 19) ( 21)sYT( 17)O7i= 0Vpt2:t2=2 (+ h)+ sinh2w+RLL sinh, LRL TH. ( 22)164t2= + hw + sinh2w e-RLL + hw , LRLTH, ( 23)t2Vp=5D:= wt2=2 (+ h)+ sinh2+RLw
2、Lsinh, LRL TH, ( 24)= wt2= + h+ 2sinhe-RLL + hw , LRLTH( 25)Vm5omVn,t= t0Hi|BKv, i9t0HYCKv.pt0T( 14)LV9iKvIm .T( 17)Vwt0-h= 2,t0= 2w+ hw ,5Im = U2mZ 1+ sinhe- RLL2w+hw . ( 26)2. 3B9L.d;?,)1B=5F5rT.r9m4M,/YV91=5-r1rT.20W;,E(EE)RL= 110,L=1. 87H,u2= 2 220sin( 100t) V, w= 100, T= 0. 02s.1=5-rKvsY:I= U2Z
3、= 2201102+ ( 1001. 87)2= 0. 37( A)Im = U2mZ = 2 2201102+ ( 1001. 87)2 = 0. 52( A)1=5,V1Tpt2I.yLRL= 1. 87110= 0. 017( s) ,VnLRL T,T( 23)9t2.5T( 15)ph.h= tg- 1 1001. 87110 = 0. 44t2 = + 0. 44100 + sin0. 442100 e- 1101. 87+ 0. 44100= 0. 016 5( s)t2T( 25)Vp=5:= 1000. 016 5= 1. 65MT( 26)VpKvIm:Im = 2 220
4、1102+ ( 1001. 87)2 1+ sin0. 44e- 1101. 87 2100+ 0. 44100= 0. 82( A).MT( 15)iVrT:i= 0. 52sin( 100t- 0. 44)+ 0. 51e- 58. 8t ( A)r:I= 1T T0 i2 dt= 1T t 20 i2dt165 =SvJOURNAL OF GU ANGXI NO RM AL UNIV ERSITY 2000M2M6I+(=SSn,+=641112)K1:=78,87X,S,ZE,7/,!7?.N,p=S7!7/.1oM:;M6;7/NBQS/;7?ZMM1,TS,1S$1.aq:“20W
5、,34Q,V7MbW、HW、+QM2;21W|S/5BhS,Z|w1S?ZBK13.W,$Q?Z1,I/BWX_,M6H4Q,yaSS/Y?Z78Pil.1、18W7SBQS/BQ,MwT,3S,9B?M.BQS,V,?Zy1,5Mm1,d-T$4vpp,yd. 1687M,d?V1,SS,S?Z,SLS,3/59L%,S/M.?Z,y,= 10. 020. 016 50 ( 0. 52sin( 100t- 0. 44)+ 0. 51e- 58. 8t )2dt= 0. 47( A) .Vn,1=5,;r0. 37A9v0. 47A,rTA,?z.ID1bv0FI.E0/$e.:, 1985, 440 4542=S,2=Sv,=SvI.0L$() ,:S/, 1985, 434 4423,q,o,u?I.0/$.:, 1998, 217 2244.YVo=55.v, 1999, 18(2): 26 275,R!,q!I.().:, 1979, 50 53、 274 276(责任编辑李小玲 )166
