:
Lx = 26 ; Ly = 2 ; n = 0.3; Kz =1; = 0.17; =1; t =1;
= ; V = 30 /; t = 4.30; ( ) = 8.00; = 19.30
:
Lx ();
Ly , ;
n ( ); n=0.3;
Kz , , , ;
: =0.17; =0.22; =0.4;
: =1; =1.8; =2.7;
γ (); γ=0.15; γ=0.06; γ=0.02;
, , ;
Δt ( );
t ;
t ;
t ;
m , :
m :
,
t;
1 ;
t : ,
=mKyKz; = Kt;
s ( ), /2: s=з;
, : =;
;
;
: =Δt/240;
, , : =z;
, ; = 3300;
, ; =z;
Σ , ;
Σ=++.
:
1. () 16.1 , B, .
2. m1 :
3. m ():
, ,
γ , 0,06;
, ;
4. t;
1=m1KyKz=0,10210,22761=0,02324 /.
5. (t):
t=-(+t)=8-(4,5+1)=2,5 , t=L/n;
.
6. (t=2,5 ):
|
|
=1 Kt=0,023240,76=0,0177 /.
7. 1=1 Kt(1 ); 1=0,023241,316=0,030 /.
8. (s):
s=з=0,01770,17=0,0030 /2.
9. ():
tn=t + t.
10. :
=1=0,0237,11=0,164 .
11. , ();
) , , .
) (m2):
;
) 2:
2=m2KyKz=0,002480,2771=0,000564 /;
) :
=Dt/240=15/240=0,0625;
Dt=t-t=19,5-4,5=15 ;
) :
= 2 Kz=0,0005640,062511=0,0000353 u.
12. :
= 3300 = 33000,0000353 = 0,116 .
13. (`):
) , , .
) ;
) 3 = m3KyKz = 0,23090,2771 = 0,0524 /;
) ` = 3z = 0,05240,06251 = 0,00328 .
14. (Σ):
Σ = ++` = 0,164+0,116+0,00328 = 0,283 .
:
. 16.2 .
16.1