(XIII.1)
(XIII.2)
, , , 2, kp/mx.
(XIII.2) . , .
, . . , kp/m kp/m,
max min ,
(XIII.2) . .
. . (. 81).
(XIII.3)
:
t =0
x =0
x=l (XIII.4)
.
.
, (XIII.3), .
(XIII.3) , (XII 1.4)
(XIII.5)
, p, kp/m, t
(XIII.6)
,
(XIII.7)
(XIII.3)
(XIII.8)
(XIII.4) (XIII.5), t θ:
(XIII.9)
, ,
(XIII.10)
.
, dt , , , .
Ω , , , , dp dt.
(XIII.11)
.
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, , pk
(XIII.12)
(XIII. 12) , , . :..a) Qa = const; ) pc = const; ) , c = 2nrchwmax, a wmax , .
118
l = 7500 , = 800 , h = 10 (. . 81), m = 20%, k = 0,5 , = 0,014 , = 14, 7 (150 /2). = 12,74 (130 /2).
Q t = 30 .
. (t) () t = 30 . . (XIII.9).
Q(t)
. 19.
. . ( x=l)
, , . 19.
. 82 (t).
30 = 2,59106 :
. 20. . 83 .
, , (XIII.10).
119
R =1000 , h = 8 pc = 6,86 (70 /2).. = 11,76 (120 /2), k = 800 , m =18%, = 0,013 , r = 10 .
pk(t) .
. , , . dt ( , )
(XIII.13)
,
(XIII.14)
(XIII.13),
t 0 t pk,
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t:
. 84 .
pk, ..11,76 10,78 9,8 8,82 7,84 6,96
t, 0 3,77 8,88 16,5 30,5 80,5
Q,3/c .13,4·10610,1·1067,2·1064,51·1062,11·106 1,99·105
(XIII.14), Q
C . 85.
120
, , R = = 500 Qa = 500 000 3/. = 9,8 (100 /2), () = 0,101 (1,033 /2), h =12 , r =10 , k = 500 , m ==20%, = 0,015 ·.
. , ,
(XIII.15)
(XIII. 15) t 0 t
(XIII.16)
(XIII.17)
.. . .
. (XIII.16), :
(XIII.16) (.17).
. 86 .
t, ..................... 50 100 150 200 291
, /2..............100 86,3 72,6 58,9 45,2 20,2
, /2..............97,9 83,9 69,7 55,3 40,5 1,033
121
, (t) (t) . = 9,8 (100 /2), Rk = 750 , h =10 , k = 0,3 , m = 20%, = 0,012 , r = 0,1 . , , , . = 0,098 (1 /2).
. wmax ,
(XIII.18)
(XIII.19)
,
(XIII.20)
(XIII.19) (XIII.20),
,
(XIII.21)
(XIII.21) (XIII.19), Q pk
, ,
(XIII.22)
(XI 11.22),
(XIII.23)
, , (XIII.23), , t. pc(t) Q{t) (XIII.19) (XIII.21). . 87, 88 .
t, 0 226 462 776 1196 1825 3130 4250 6100
pk , 9,8 8,33 6,86 5,39 3,92 2,45 0,980 0,490 0,210
pc, 9,62 8,15 6,68 5,22 3,74 2,28 0,822 0,345 0,098
Q ·10-5,3/..2,66 2,25 1,85 1,445 1,035 0,632 0,227 0,0955 0,0271
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