(. 3). : Ft =2807 H, Fr =1036 H,
Fa =480 H, ℓ1 =69 , d1/2=23 .
. 3.
:
- xz
Y 1-2-3
∑ y1 = 0
∑ y3 = Rx1 ℓ1 =
∑ y3 = Rx2 ℓ1 =
∑ 2 = 0
- yz
Ry1 = (0,5/ℓ1) (Fr ℓ1 + Fa 0,5 d1) =
Ry2 =(0,5/ℓ1) (Fr ℓ1 - Fa 0,5 d2) =
: Ry1 + Ry2 - Fr = 0 598+438-1036=0
1-2-3
∑ 1 = 0
∑ 3 = -Ry1 ℓ1 =-
∑ 3 = -Ry2 ℓ1 =-
∑ 2 = 0
= z = 1 =65,5
:
.
Pr(1-2) ≤
- 308:
d =40 , D =90 , B =23 , C =41 kH, C0 =22,4 kH.
;
=0,205 (.1. . 9.18)
.
.9.18[1] X = 0,56; Y =2,15.
,
= (XV Pr1 +Y Fa)K , [ .1, 9,3 ]
: X (.1, 9.18) = 0,56;
Y (.1, 9.18) =2,15;
V ; = 1;
K (.1, 9.19) = 1,4;
- (.1, 9.20) = 1.
Lh = (106 / 60 n) (C / )3 .
10000 .
. (. 4) , :
Ft =2807 H, Fr =1036 H, Fa =480 H, ℓ2 =70 , d2/2=117 .
. 4. .
:
- xz
Y 1-2-3
∑ y5 = 0
∑ y7 = -Rx5 ℓ2 =
∑ y7 = -Rx6 ℓ2 =
∑ 6 = 0
- yz
Ry6 = (0,5/ℓ1) (Fr ℓ1 + Fa 0,5 d1) =
Ry5 =(0,5/ℓ1) (Fr ℓ1 - Fa 0,5 d2) =
: Ry5 + Ry6 - Fr = 0 919+117-1036=0
1-2-3
∑ 5 = 0
∑ 7 = Ry5 ℓ2 =
∑ 7 = Ry6 ℓ2 =
∑ 6 = 0
= z = 2 =327,5
.
Pr(5-6) ≤
- 309.
|
|
d =50 , D =110 , B =27 , C =65,8 kH, C0 =36 kH.
, .
, X=1 Y=0,
10000 .
.
(.1, . 8.9).
. 45 .
- 45 .
(8.22 [ 1 ])
=100...120 , =50...70 .
d=32 ; ; t1=5 ; l=40
d=42 ; ; t1=5 ; l=56
d=55 ; ; t1=6 ; l=63
.
s [s].
s > [s].
(. 3). 40, - . (.1, 3.3) 120 σ = 930 .
σ- 1 ≈0,43σ=0,43∙930 = 403
τ-1 ≈0,58σ- 1=0,58∙403 = 234
. . .
sτ = τ-1 / (τ τυ / ετ + ψτ τm ),
: τ ,
=1,9. [.1, .8,5]
τυ ;
τm ;
ετ ,
ετ =0,76 [.1, .8,8]
ψτ [.1, .166]
τυ = τm = 0,5 τmax =0,5 1 / Wk ,
: Wk .
Wk = (πd3 / 16) [bt1 (d t1)2 / 2 d ] [.1, .8,5]
: d - ;
b ;
t1 .
d=32 ; b=10 ; t1=5 .
. (. 3), . s = sτ =16.
(. 4).
45 ; σ = 570 (.1, . 3,3).
σ- 1 ≈ 0,43σ =0,43∙570=246
τ-1 ≈ 0,58σ- 1 =0,58∙246 =142
. d =55 -,
|
|
2 =327,5 . _________
- = √2 + 2,
: - , (. 4);
- , (. 4).
- =
.
: τ -
, =1,5 [.1, .8,5]
τυ ;
τm ;
ετ ,
ετ =0,69 [.1, .8,8]
ψτ [.1, .166]
τυ = τm = 0,5 τmax =0,5 1 / Wk ,
: Wk .
Wk = (πd3 / 16) [bt1 (d t1)2 / 2 d ] [.1, .8,5]
d=55 ; b=16 ; t1=6
.
sσ = σ- 1 / (σ συ / εσ + ψσ σm),
: σ , =1,6 [.1, .8,5]
συ ;
σm , = 0.
εσ ,
εσ =0,81 [.1, .8,8]
ψσ , =0 [.1, .164]
συ = - / W ,
: W .
W = (πd3 / 32) [bt1 (d t1)2 / 2 d ] [.1, .8,5]
d=55 ; b=16 ; t1=6
s > [s] = 2,5. [.1, . 162]
9.
:
6
7
:
7/6.
9/d9.
P9/h9.
:
7/h7.
:
7/m6.
10.
, , 12 . 0,25 3 1 : V = 0,25×6,851,7 3.
11.
.
, :
, 80¸1000;
, , .
. . , . . , .
.
: ( ) .
.
|
|
, .
1. .., .., .. . - .: , 1988.- 416 .
2. .. - .: , 1991.- 432 .