.
.
, , ( ), ( x y).
m, .
4.2.2.
() () :
: J / J = 1/6 = 0,167 ( . 3.1);
(): / = 5 750 / 9 450 = 0,608;
: b = N / N = 2238,79 / 660,99 = 3,387.
b , N N. N 1-1 2-2; N 3-3 4-4. (1 + 2 + 3 + 5 + 7),
N = 2238,79 , N = 488,62 + 172,37 = 660,99 .
4 / £ 0,6 b ≥ 3, . 18 [2]:
μ = 2,5; μ = 3,0 ( ).
, , .
4 a1 = m / m , :
.
. . 6 [2] m . . 67, . 68.
m a1 n:
, m = 2,541 ( . 67).
a1 | n | ||
0,2 | 0,3 | 0,274 | |
0,80 | 2,42 | 2,56 | 2,523 |
1,00 | 2,73 | 2,94 | 2,885 |
0,810 | - | - | 2,541 |
4 a1 m , m :
( m 3, m = 3);
, m = 3.
:
4 : = H × m = 9 450 × 2,541 = 24 015 = 2 402 ;
4 : = H × m = 5 750 × 3,00 = 17 250 = 1 725 .
4.2.3.
(. 6.13 [2]).
|
|
( ) ( ):
= H H = 5 750 1 600 = 4 150 ,
(. 1.2).
: = H = 9 450 .
.