: - () ( ) .
3.1.
_____________________________________________
.3.1. | ||
.3.2. | ||
i: ________________________________________________
3.1 | |||||
i i, i | |||||
/ | ֳ , d | b, | |||
ii :
) i, i _______________________
) i _____________________________________________________
) ii i R = ________________________
) ii R b = R (0,8-0, 001 R) ³ 0,72 R________________________ ________
ii :
) __________________________________________________
) i i sy = _____________________________________
) i Es =___________________________________________
3.2 | ||||
i i | ||||
/ | ||||
h | ||||
b | ||||
H | ||||
a-ds/2 | ||||
a-ds/2 | ||||
ij | ds | |||
ij | ||||
h0 | ||||
As | ||||
³ | 0 | |||
³ | ||||
³ | ||||
3.3 | |||||||||
i | |||||||||
- | N, | ||||||||
-1 | -2 | -3 | |||||||
1 - i i i ;
|
|
2 - i i i .
3.2.
3.4 | ||||||
i | ||||||
- N, | ³ S | г DS = S-S0 | , Db=d´DS | ³ es = Db/bs (eb=Db/bb) | -, ss=Es ´es | |
-1 d = bs= | ||||||
T-2 d = bs= | ||||||
3.4 | |||||||
T-3 d = bb= | |||||||
. 3.3.
|
|
. 3.4.
3.3. в
3.5.
_________________________________________________
___________________________________________________________________
. 3.6. |
____
____
____
____
____
____
____
____
____
____
____
____
: Nu,cal=_____________________________
: Nu,tes=_______________
Nu,cal Nu,tes :
Δ=(Nu,tesNu,cal)/Nu,tes100%=_____________________________________________
:___________________________________
____
____
____
____
ϳ , ________________________________
_________________________________
____ ___________________ 20...
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