:
: , . . ; ; . . , , . .
1 -
- aw,
(1)
; = 49,5;
= 43
ψ , 0,28...0,36 - , ;
β . β =1;
2 , ; 2 =.;
[σ]H , [σ]H =
u =. .
aw =
aw 4.4 [1]. aw =
- m,
, (2)
m - ; m= 6,8;
m= 5,8
d2 - ,
(3)
( 0,00)
b2 - , ,
b2 = ψ aw (4)
b2 =
4.4[1]. b2 =
[s]F - c , /2; [s]F =
m . m =
m, 1- : 1,0; 1,5; 2; 2,5; 3; 4; 5
2- : 1,25; 1,75; 2,25; 2,75; 3,5; 4,5
1- 2-.
- :
ZΣ = 2aw / m (5)
ZΣ = (2 aw cos βmin)/ m,
βmin , :
βmin= arcsin(3,5m/ b2).
β = 8 15, - F , m b2.
|
|
ZΣ , ZΣ = .
:
β = arccos β
β .
-
Z1 = ZΣ / (1+u) (6)
Z1 . Z1 =
Z1 >18, .
-
Z2 = ZΣ - Z1. (7)
Z2 =
- u Δu
u= Z2/ Z1 (8)
u=
(9)
Δu =
Z1 Z2.
-
aw= (m ·ZΣ) /2 (10)
8 ,
, | |||
, | b1 = b2 + (24) |
, | |||
, | b1 = b2 + (24) |
aw .
0,01
4.4 -
R5 | R10 | R20 | R40 | R5 | R10 | R20 | R40 | ||
1,00 | 1,00 | 1,00 | 1,00 | ¾ | ¾ | ¾ | 3,35 | ||
¾ | ¾ | ¾ | 1,06 | ¾ | ¾ | 3,55 | 5,55 | ||
¾ | ¾ | 1,12 | 1,12 | ¾ | ¾ | ¾ | 3,75 | ||
¾ | ¾ | ¾ | 1,18 | 4,00 | 4,00 | 4,00 | 4,00 | ||
¾ | 1,25 | 1,25 | 1,25 | ¾ | ¾ | ¾ | 4,25 | ||
¾ | ¾ | ¾ | 1,32 | ¾ | ¾ | 4,50 | 4,50 | ||
¾ | ¾ | 1,40 | 1,40 | ¾ | ¾ | ¾ | 4,75 | ||
¾ | ¾ | ¾ | 1,50 | ¾ | 5,00 | 5,00 | 5,00 | ||
¾ | ¾ | 1,60 | 1,60 | ¾ | ¾ | ¾ | 5,30 | ||
¾ | 1,25 | ¾ | 1,70 | ¾ | ¾ | 5,60 | 5,60 | ||
¾ | ¾ | 1,80 | 1,80 | ¾ | ¾ | ¾ | 6,00 | ||
¾ | ¾ | ¾ | 1,90 | 6,30 | 6,30 | 6,30 | 6,30 | ||
¾ | 2,0 | 2,00 | 2,00 | ¾ | ¾ | ¾ | 6,70 | ||
¾ | ¾ | ¾ | 2,12 | ¾ | ¾ | 7,10 | 7,10 | ||
¾ | ¾ | 2,24 | 2,24 | ¾ | ¾ | ¾ | 7,50 | ||
¾ | ¾ | ¾ | 2,36 | ¾ | 8,00 | 8,00 | 8,00 | ||
2,5 | 2,5 | 2,50 | 2,50 | ¾ | ¾ | ¾ | 8,50 | ||
¾ | ¾ | ¾ | 2,65 | ¾ | ¾ | 9,00 | 9,00 | ||
¾ | ¾ | 2,80 | 2,80 | ¾ | ¾ | ¾ | 9,50 | ||
¾ | ¾ | ¾ | 3,00 | 10,00 | 10,00 | 10,00 | 10,00 | ||
¾ | 3,15 | 3,15 | 3,15 |
|
|
. , , , 10, 100, 1000, 10000, 100000 .
4
:
1
aw= (d1+ d2)/2 (1)
2
, (2)
D S - ;
D S - .
D = da1 + 6, (3)
6 - .
D =
S = b2 + 4 (4)
S =