: , ,
:
:
:
= 0,95·0,97·0,97·0,99·0,99=0,87
, , .
[2, . .1].
:
=4,116/0,87=4,73
[2, ..2] 4132S643 : , , 2,
:
=965/50,2=19,22
.
u¢1=2
=1,1, (. 1) u2¢=3,5,
2, 3,55,
:
, :
- ( )
P1=P=5,5 n1 =n = 965 1
T1=9550×P1/n1 = 9550·5,5/965=54,43 ×
- ( )
P2=Pl×h1=5,5·0,95=5,225 , n2 = nl/ ul = 965/2=482,5 1
T2=9550×P2/n2 = 9550·5,225/482,5=103,5 ×
- ( )
P3=P2×h2= 5,225·0,97=5,07 , n3 = n2/ u2 =482,5/3,55=135,9 -1
T3=9550×P3/n3 = 9550×5,07/135,9=356,3 ×
- ( )
P4=P3×h3= 5,07·0,97=4,92 , n4 =n3/u3=135,9/2,8=48,54 1
T4=9550×P4/n4 = 9550·4,92/48,54=967,9 ×
Ln=n0×tc×ku×nβ×L0=3×7×0,8×260×5=21840
n0 ,
tc ,
ku ,
L0 ,
nβ .
n0=3 tc=7,2, ku=0,8, nβ=260, L0=5
N1=60×n1×D1×Lh=60·965·0,003·21840=0,38·106
D1×= 0,003 ;
Lh = 21840 .
. N=0,38×106<107, ,
T1=54,43, T2=103,5, T3= 356,3, T4=967,9 ×.
: 1=5,5 , , u1=2, 1=54,43 .
[ 1,. 8.12] 1=5,5 .
d1= 180 [ 1, . 8.10 ]
|
|
e=0,02
=180·2(1-0,02)=352,8
20889-75
=355/180=1,97
= /
[1, .144]
cv=1,05-0,0005×V2=0,51
[1, .151] u1=2
=2,4×180=432
=103×9,09/1721=5,28 -1,
[i]=10 c-1
=
=180˚57,3·(355-180)/431,65=156,37
=2000×54,43/180=604,7 .
=1,35·0,92·1,01×0,8=1 ,
- ,
. =1,35 σ0=1,2 [ 1,.8.10], [ 1,.8.10]
u.=1,05-0,0005u2=1.05-0,00059,092
Cα=10,003(180156,37)=0,92
=604,7/230×1=2,62
, =230 2 [1, .8.2] .
Z = 3.
=2·1,2·230×3×sin (156,37/2)=575,32
,
h ,
q
E=80 [1, .146], h=10,5[1, .8.2],q=0,178 / [2, ..4]
, u
σ ,
[1, c.151] u=1,7 =1 u1=1,34, σ=9 , m=8
4.
: , TH2= 103,5 H×, T3=356,3 H×, n2=482,5 -1, u=3,55, Lh= 21840 , l = 2
45, 50 [1, .9.13 ]:
H | |||||
σB | σT | ||||
735 441 | 192240 | ||||
628 343 | 179228 | ||||
:
NHE 1=60×Lh×n2×[(T1/T)3×D1+(T2/T)3×D2+(T3/T)3×D3]=
=60·21840·482,5·[1,33·0,003+13·0,15+0,73·0,25+0,53·0,6]=1,99·108
T1/T, T2/T, T3/T 1,3, 1,0 0,6;
D1, D2, D3 , D1=0,003, D2=0,65, D3=0,35
[ σH] = (σHlimb/SH)×KHL,
σHlimb ,
SH ,
KHL ,
3=270
σHlimb =2H+70=2×220+70=510 , SH = 1,1 , HL = 1 NHE3> NHO3
[σH]1=510·1/1,1=463
u
σHlimb =2× +70=2×200+70=470 ,
SH = 1,1, KHL = 1:
|
|
[σH]4=470·1/1,1=427,27 .
[σF] = (σFlimb/SF)×KFL,
σFlimb, SF, KFL ,
SF=2[3, .8.9], KFL=1 NFE> NFO
σFlimb=H+260 [1, .9.12],
:
NHE 1=60×Lh×n2×[(T1/T)m×D1+(T2/T)m×D2+(T3/T)m×D3]=
=60·21840·482,5·[1,36·0,003+16·0,15+0,76·0,25+0,56·0,6]=1,28·108
T1/T, T2/T, T3/T 1,3, 1,0 0,6;
D1, D2, D3 , D1=0,003, D2=0,65, D3=0,35
NFE2=NFE1/u2=1,28·108/3,55=3.6·107
SF=2
[σF]1 = ((H3+260)/SF)×KFL480/2=240
[σF]2 = ((H4+260)/SF)×KFL=460/2=230
¢W = 430/ (u2+1) ×3 ,
KHb ;
y¢ba ;
[σH] .
y ba =0,4, y b =0,4×y ba ×(u2+1)=0,5·0,4·6=1,2.
[ 1..9.5, 3 ],KHb= 1,19.
,
¢W1=430/(4,55) ×3
W = 130 [1, . 6].
z1 = 29
z2= z1×u2= 29·3,55=102,95=103
U2 = z2 / z1= 103/29=3,55
m t = 2× a W/(z3+z4)=2·130/(103+29)=2,12 ,
m = 2 [1, . 9.5].
b =arcos(m / m t)= arcos(2/2,12)=19,37
zv1=z1/cos3(b)=29/cos3(19,37)=34,65
zv2=z2/cos3(b)=29/cos3(19,37)=123,06
V = p×m t×z1×n2/(60×103) =3,14·2,12·29·482,5/(60·103) =1,55 /;
[1, . 9.10] n'=8.
, :
-
d1=mt×z1= 2,12·29=61,48;
d a 1=d1+2m=61,48+2·2=65,48;
df1=d12,5m=61,48-2,5·2=56,48;
b1=b2+(510)=56+8=64
-
d2=mt×z3=2,12·103=218,36;
d a 2=d2+ 2m=218,36+2·2=222,36;
df2=d22,5m=218,36-2,5·2=213,36;
b¢2 = yb a × a W= 0,4·139,92=56
w=0,5×(d1+ d2)=0,5×(61,48+218,36)=139,92
eb= bW×sinb/(p×m)=56×sin19,37/(3,14×2)=2,96
ea=[1,88-3,2(z3-1+z4-1)]×cosb=[1,88-3,2(29-1 +103-1)]×cos19,37=1,63.
,:
Ft1=2×103×TH3/d3=2×103×54,43/61,48=1770,66 ;
Ft2=Ft1×tgan/cosb=1770,66×tg20/0,94=685,6 ;
F a1 =Ft1×tgb=1770,66×tg19,37=622,5 ,
an = 20 - .