(.35) | (30) | |||||
E, | 2×105 | 2×105 | 1×105 | 0,7×105 | 1,2×105 | 1×104 |
s, | - | - | ||||
/ s, | 180/600 | 100/45 | ||||
0,25 | 0,25 | 0,34 | 0,3 | 0,25 | 0,45 | |
a, 1/ | 12×10-6 | 12×10-6 | 22×10-6 | 24×10-6 | 11×10-6 | 4×10-6 |
: , .
2
1. - n σ :
n σ =1,5;
n σ =3 ( - );
10, 4,5.
2. [t] :
[t] = 0,6 ∙[σ] ; [σ] - -.
3. -.
3
yc | Jx | Wx | ||
0 | ||||
0 | ||||
0 | ||||
0 | ||||
yC=h/3 | - | |||
yC≈0,424r |
4. 6636 - 69*
- , , . Ra5, Ra10, Ra20, Ra40, Ra40, .
Ra 40 | Ra 40 | Ra 40 | Ra 40 | Ra 40 | Ra 40 | Ra 40 | Ra 40 |
2,4 | 5,6 | ||||||
1,05 | 2,5 | ||||||
1,1 | 2,6 | 6,3 | |||||
1,15 | 2,8 | 6,7 | |||||
1,2 | 7,1 | ||||||
1,3 | 3,2 | 7,5 | |||||
1,4 | 3,4 | ||||||
1,5 | 3,6 | 8,5 | |||||
1,6 | 3,8 | ||||||
1,7 | 9,5 | ||||||
1,8 | 4,2 | ||||||
1,9 | 4,5 | 10,5 | |||||
4,8 | |||||||
2,1 | 11,5 | ||||||
2,2 | 5,3 |
5. 8239-89
|
|
h ; b ; s ;
t ;
R ;
r
h | b | s | t | R | r | X X | Y Y | |||||||
Ix, | Wx, | ix, | Sx, | Iy, | Wy, | iy, | ||||||||
2 | 4 | 3 | 3 | 4 | 3 | |||||||||
4,5 | 7,2 | 7,0 | 2,5 | 12,0 | 39,7 | 4,06 | 23,0 | 17,9 | 6,49 | 1,22 | ||||
4,8 | 7,3 | 7,5 | 3,0 | 14,7 | 58,4 | 4,88 | 33,7 | 27,9 | 8,72 | 1,38 | ||||
4,9 | 7,5 | 8,0 | 3,0 | 17,4 | 81,7 | 5,73 | 46,8 | 41,9 | 11,50 | 1,55 | ||||
5,0 | 7,8 | 8,5 | 3,5 | 20,2 | 109,0 | 6,57 | 62,3 | 58,6 | 14,50 | 1,70 | ||||
5,1 | 8,1 | 9,0 | 3,5 | 23,4 | 143,0 | 7,42 | 81,4 | 82,6 | 18,40 | 1,88 | ||||
5,2 | 8,4 | 9,5 | 4,0 | 26,8 | 184,0 | 8,28 | 104,0 | 115,0 | 23,10 | 2,07 | ||||
5,4 | 8,7 | 10,0 | 4,0 | 30,6 | 232,0 | 9,13 | 131,0 | 157,0 | 28,60 | 2,27 | ||||
5,6 | 9,5 | 10,5 | 4,0 | 34,8 | 289,0 | 9,97 | 163,0 | 198,0 | 34,50 | 2,37 | ||||
6,0 | 9,8 | 11,0 | 4,5 | 40,2 | 371,0 | 11,20 | 210,0 | 260,0 | 41,50 | 2,54 | ||||
6,5 | 10,2 | 12,0 | 5,0 | 46,5 | 472,0 | 12,30 | 268,0 | 337,0 | 49,90 | 2,69 | ||||
7,0 | 11,2 | 13,0 | 5,0 | 53,8 | 597,0 | 13,50 | 339,0 | 419,0 | 59,90 | 2,79 | ||||
7,5 | 12,3 | 14,0 | 6,0 | 61,9 | 743,0 | 14,70 | 423,0 | 516,0 | 71,10 | 2,89 | ||||
8,3 | 13,0 | 15,0 | 6,0 | 72,6 | 953,0 | 16,20 | 545,0 | 667,0 | 86,10 | 3,03 | ||||
9,0 | 14,2 | 16,0 | 7,0 | 84,7 | 1231,0 | 18,10 | 708,0 | 808,0 | 101,00 | 3,09 | ||||
10,0 | 15,2 | 17,0 | 7,0 | 100,0 | 1589,0 | 19,90 | 919,0 | 1043,0 | 123,00 | 3,23 | ||||
11,0 | 16,5 | 18,0 | 7,0 | 118,0 | 2035,0 | 21,80 | 1181,0 | 1356,0 | 151,00 | 3,39 | ||||
12,0 | 17,8 | 20,0 | 8,0 | 138,0 | 2560,0 | 23,60 | 1491,0 | 1725,0 | 182,00 | 3,54 |