2
4
: H=210 , n1=90 /, φ=90, yB=0
1.1
1- ;
2- ;
3-
4- .
. , .
f = 3(n-1) 2p1 p2
n = 4; p1 = 4; p2 = 0, f = 3(4-1) 2*4 = 1.
1.2 12- . .
2 lOA = H
lOA = H/2 = 210/2 = 105 = 0, 105
lAB = lOA/0,25 = 105/0,25 = 420 = 0,420
lAC = 0,35 lAB = 0,35×420 = 147 = 0,147
1.3 () ( , - - φ=90). .
) φ = 90
: ω1 = 2πn1/60 = 2×3,14×90/60 = 9,42 /
: VA = ω1×OA = 9,42×0,075 = 0,71 /
, :
KV = VA/Va = 0,71/75 = 0,0095 (/) /
V = KV × Vb =0,0095×75 =0,71 /
V = KV × V = 0,0095×75 = 0,71 /
V = 0 ( )
Va, Vb, V, Vba -
: ω2 = V/ lAB = 0,86/0,3 = 2,96 /
) φ = 0
V =0 /, VA = 0,71 /, V = VA = 0,71 /
ω2 = V/ lAB = 0,71/0,42 = 1,7 /
) φ = 90
ω1 = 9,42 / = const, = 0 /2
= ω1× lOA =(9,42)2×0,075 =6,66 /2
= / lAB = 02/0,42 = 0 /2
, :
KW = Wa = 6,66/60 = 0,111 (/2)/
= KW × Wτ= 0,111 × 67,6 = 7,5 /2
= ε2 × lAB ε2 = / lAB = 7,5/0,42 = 17,87 /2
WB =KW × Wb = 0,111×31,14 = 3,46 /2
WC =KW × Wc = 0,111×46,54 =5,17 /2
Wa, Wb, Wc, Wτ -
) φ = 0
= / lAB = (0,71)2/0,42 = 1,2 /2
= 0 /2 ε2 = 0 /2
= ω1× lOA =(9,42)2×0,105 =9,32 /2
, :
KW = Wa = 9,32/70 = 0,133 (/2)/
Wn = /KW = 1,20/0,133 = 9,02
WB =KW × Wb =0,1333×79 = 10,51 /2
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WC =KW × Wc =0,133×72,05 = 9,58 /2
1.4 ,
= xB×
+ = -
φ = 90
l1 = l = 0,105 , l2 = l = 0,42
l1 + l2 = xB
l1 + l2 = 0
= l1 l2 = ( 0, 105× )/0,42 = 0,25
= = = 0,968
xB = l1 + l2 = 0,105×0+ 0,42×0,968 = 0,407
l1 l2 =
l1 + l2 = 0
= l1 l2 = 0,105×0/0,42×0,968 = 0
= l1 l2 = 0,105×1 0,42×0×( 0,25) = 0,105
l1 l2 l2 =
l1 + l2 = 0
= ( + l1 l2 =
= (0,42×(0)2×(0,25) + 0,105×1)/0,42×0,968 = 0,242
= l1 l2 l2 =
= 0,105×0 0,42×0,258×(0,25)0,42×(0)2×0,968 = 0,0254
ω1 = 2πn1/60 = 2×3,14×90/60 = 9,42 /
ω2 = × ω1 = 0×9,42 = 0 /
= × ω1 = 0,105 ×9,42 = 0,99
ε2 = = × = 0,242×(9,42)2 = 21,47 /2
= × = 0,0254×(9,42)2 = 2,25
1.5 , 30. 12- .
. .
+ = -
l1 = l = 0,105 , l3 = l = 0,147
l1 + l3 = x
l1 + l3 = yC
x =0,105×0 + 0,147×0,968 =0,142
yC =0,105×1 + 0,147×( 0,25) = 0,683
l1 l3 =
l1 + l3 =
= 0,105×1 0,147×0×( 0,25) = - 0,105
= 0,105×0 + 0,147×0 ×0,968 = 0
l1 l3 =
l1 + l3 =
= 0,105×0 0,147×0,242×( 0,25) 0,147×02×0,968 = 0,0089
= 0,105×1 + 0,147×0,242×0,968 0,147×(0)2×( 0,25) = 0,0705
ω1 = 2πn1/60 = 2×3,14×90/60 = 9,42 /
ω2 = × ω1 = 0×9,42 = 0 /
= × ω1 = 0,105 ×9,42 = 0,989
= × ω1 = 0 ×9,42 = 0
ε2 = = × = 0,242×(9,42)2 = 21,47 /2
= × = 0,0089 ×(9,64)2 = 0,83
= × = 0,0705×(9,64)2 = 6,55
1.6 , .
. .
xB = xB(φ)
= (φ)
= (φ)
2
4
:N=11 , ng4=960 /, nxx=1000 /, z1=15, z2=28, m=5 , m1=11 , m2=24 , m3=55 , I1O=0,17 2, n1=90 /, H=210 , D=180 , φ=90
2.
2.1 , . .
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φ=30
PC -
-
X2 = m2 × = 24 × 0,83 = -19,92
Y2 = m2 × 24 × (6,55) = 157,2
X3 = m3 × 55 × 2,25 = -123,75
JC:
JC = 0,17× m2× = 0,17×24×(0,42)2 = 0,72 2
JC × = 0,72×21,47 = 15,46
φ, | ||||||||||||||
, 105 | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 | |||||||
, 105 | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 | 0,5 |
φ 00 1800:
= ()×Sn = (6 1)×105× 0,0254 = 12700 = 12,7
φ 1800 3600: = − 12,7
= (φ)
2.2 . , ( - , - ).
:
R12 - , ( )
R23 -
R1 - 1
R3 -