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, W= n -2p5 -1p4
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W=n-25-4
W =n-25
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_________________
6
2
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W = n - 25 - 4 =
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n , n1 = 100 /.
nH
n1 = 100 /.
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__________________
3
()
1. m () =
2. d =
r= d/2 =
3. α = 20
( ha = 1 = 0,25, Zmin=17)
| / | ( <, >, =) | ||||
| . | |||||
| Z=d/m = | Z=d/m = | ||||
| Bmin=m(17-z)/17 = | = 0 | ≠0 | |||
| b = 0 | b ≥ bmin; b = | ||||
| Pa = πm = | Pa = πm = | Pα | Pα | ||
| rb = r*cosα = | rb = r*cosα= | rb | rb | ||
| S = P α/ 2 = | S = Pα/2 + 2b*tgα = | S | S | ||
| ha = m = | ha = m + b = | ha | ha | ||
| hf= 1,25 m = | hf= 1,25 m-b = | hf | hf | ||
| ra=r+ha = | ra= r+ ha = | r | r | ||
| rf = r-hf= | rf=r-hf= | rf | rf | ||
| . r α | ra = | ra = | r α | rα |
| α | α = = arccos (rb/ra)= | α /= = arccos (rb/ra)= | α | α/ | |
| Sa=da [π/2z+(invαa invα)]= | Sa /=da [π/2z+(invαa invα)]= | Sa | S'a | ||
| , | S = | S' = | |||
| , | Sa = | Sa/ = |
inv α = tg α - α =
|
|
|
inv α a = tg α a - α a =
α, , α = 20.
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___________________
12
4
______________________
| , φ | ||||||||||||||
| , S, ( ) | ||||||||||||||
| So, ( ) | ||||||||||||||
| Sc | ||||||||||||||
| ΔSC, | ||||||||||||||
| , Vφ. | ||||||||||||||
| φ | ||||||||||||||
| S | ||||||||||||||
| So | ||||||||||||||
| Sc | ||||||||||||||
| ΔSC | ||||||||||||||
| Vφ | ||||||||||||||
φy =; φ =; φ =
|
|
|
Sc = 0.5(S+S0)
ΔSci =Sci Sc(i-1)
i- , i = 1, 2, 3...
Δφ
MM
Δφ - , .
φ, φ, φ, .
Vφ = Vφ (φ) Vφi Δφ.
Sc = Sc (φ), Vφ = Vφ (φ)
S, Vφ
| t | ||||||
φ
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____________________
15
5
| - , | . , | , | ||||||
| M1 | 2 | 3 | R1 | R2 | R3 | α1 | α2 | α3 |
| , - | n | rn | αn | |||
| M1 | 2 | 3 | Mn | |||
.
= M1+ 2 cos α2 + M3 cos α3 =
= 2 sin α2 + 3 sin α3 =
n :
1. () .
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________________
______________________________
6
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m = r =
.
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| i | ||||||
| A1 | ||||||
| 2 | ||||||
| 3 |
- A1, A2,A3; 
|
|
|
| n, | rn, | ||||
| + αn= | - αn= | 180 - αn= | 180 + αn = | ||
m0r0
n,
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.
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6. /? ?
7. , ?
8. .
__________________
21
020370 ..
27.09.2004.
60x90/16. 1,5 ..
100. 120.
-
