1. . (.1) (1 2) - . , , , , 21. , b a. (w = const) , , . G J, N F. J w 2 r .
, ( w 2 r), , .
, :
j1 = - g tg (j - a), /2, (1)
j - ; a - .
, :
j2 = g tg (j + a), /2. (2)
, :
j = g / tg a, /2. (3)
w , :
w = (j / r)1/2, -1, (4)
j : j > j > j2.
: v max=w r, /, (5)
j max =w2 r, /2. (6)
v : v = (S - S) w/ 2p, /, (7)
S - , ;
S - , .
S S . S S . (.2) :
v =w r sin w t, /, (8)
j =w2 r cos w t, /2. (9)
t = 2p/w, . (10)
BD B: D = 2, D EF, , D , , -w t, 1-w t; 7 , - 0; 0,5p; p; 1,5p; 2p; 2,5p; 3p; 3,5p; ; EDCF j =w2 r cos w t, (AEFB) - v =w r sin w t ( , 0,5p: sin 0 = 0; cos 0 = 1; sin 0,5p = 1; cos 0,5p = 0; v max, j max , 1D. :
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- mt 12,
j = wt = 0,5p; t = 0,5p/w,: mt = 0,5p/ (w 12), /; (11)
- m v , v max=w r:
m v = v max / , /-; (12)
- mj 1D, j max =w2 r: mj = j max / 1D, /2-. (13)
(.2) , v 1 v 2. j = f (w t) j1, - j2 ( 13 = j1/ (mj); 15 = j2/ (mj)) , . (, / ..) - j1 t . , / , v = f (w t) , v 1 = 06m v , . /1 - j2 t . /1 , v = f (w t) , v 2 = 07m v , . t1 t2, ( t t) : t1 = v 1 / j1, ; t2 = v 2 / j2, . (14,15)
6 -w t 6 = t1/ mt, ; 7 - 7 = t2 / mt, . 0 , 0 , 0 0. 0 , 0 - ; - (), v =w r sin w t 0 0 .
7 , , . 7 ( .2), . : /, 0 //, /////, 0.
: S = d1W1m v mt, ; S = d2W2m v mt, , (16,17)
d1 = cos (j - a) / cosj; d2 = cos (j + a) / cosj; (18,19)
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W1 - /////, W2 - ///. W1 W2 ( ) : , /////, ///, ( , 1 2 = 100 2), - ( ) -, - , ; W1, W2 2. S S 7 v .
:
h = Qp / v g, , (20)
Qp = Qb / b - , /; (21)
Q - , /; b - , , b = 0,33-0,6; b - , , , b = 0,6-0,8;
= 0,9 - , ; - , ; g - , , g = 50-60 /3.
, , ( : , ) :
n = noh / ho, (22)
no = 60-80; ho = (0,01-0,012), .
: Lp ³ n(S - S), . (23)
: q = Qp / Lp, / 2. (24)
q , , ..: q £ [ q ], (25)
[ q ] - : 0,9-1,1 / 2; 20´20 : 0,7-0,85 / 2; 16-20 : 0,3-0,4 / 2.
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2.1. - .
2.2. .
2.3. .
2.4. 1.