:
N ≥ N , (5.1)
, N , ;
N , , .
, -1300:
N = N + N + N + N , (5.2)
, N , , ;
N , ;
N ( -1300 N = 60), ;
N , .
, :
N = T max ωr,(5.3)
, T max , , ;
ω ,1/;
r ,(S/2) ,
:
T i= P j+ F+ , (5.4)
, R , ;
P j , , ;
F , , .
.
:
Rcp =(εfz)/(x x), (5.5)
, ε , 1 2 (ε=(12)×10-2/2;
f , 2;
x x , , .
:
f=LS,(5.6)
, L , L=4,2 ;
S , S=8,7 .
f =4,2∙8,7=36,5 c2 .
:
z=B/t, (5.7)
, , ;
t , .
z=3,6/0,076=47,4≈47,
R=(1 ∙ 10-2 ∙ 36,5 ∙ 47)/(0,063-0,029)=504,6 .
( =0 =S):
:
Pjmax≈ m∙ω2∙r, (5.8)
, m − (m = m o B), ;
m 0 − (m o = 2,02,2 /);
ω , ω =63,32 -1;
r r=S/2= 0,0435.
m = 2,03,6=7,2 ,
Pjmax≈ 7,2 ∙ 63,322 ∙ 0,0435=1255,8 .
: , (5.9)
:
F=fG, (5.10)
, G=mg , ;
f (f =0,250,30), f =0,30
F =0,30 ∙ (7,2 ∙ 9,81)=21,19 .
R c, P j F , :
R c , ;
Pj HMKL , 1
|
|
V = const;
MK 0;
1 ;
F , ;
T max , :
T max= P j +F, (5.11)
T max=1255,8+21,19=1276,9 ,
N =1276,9 ∙ 63,32 ∙ 0,0435=3517,1 =3,5 .
, (N ) (N x):
N = N + N x, (5.12)
, :
N 0 = { a + b [ q min]} [ q min] u,(5.13)
, [ q min] , /;
b , ( - = 100120 ͷ(/)-1 b = 810 ×(/)-2);
u , u =30 /.
, :
N 0 = {110+10 ∙ 3,7} ∙ 3,7 ∙ 30 =16371 ≈ 16,37 .
N x :
N x = a x u + b x u 3,(5.14)
, ( = 0,850,90 100 ( -1300 320 );
b x , , ( b x = 0,0550,090 2/2).
N x =2,88 ∙ 30 + 0,09 ∙ 303=2516,4 =2,52 ,
N =15,44+2,52=17,96 .
, :
N = 10-3 P V / (η η), , (5.15)
, P , ;
η (η = 0,87);
η (η = 0,950,98).
:
= G (f i / 100), (5.16)
, f (f = 0,070,09 );
G = m g , ;
i , i=2 %.
m :
m = m + ∆,(5.17)
, m , ;
∆ m , , .
m =11,33+5,0=16,33 ,
G =16,33 ∙ 9,81=160,2 ,
=160,2 ∙ (0,08+2/100) =16,02 ,
N =16,02 ∙ 1,7/(0,87 ∙ 0,97)=25,25 .
N ( ), -1300 , N =60 .
:
N = N + N + N + N ,
N =3,50+17,96+60+32,3=113,8 .
-1300. , N≥N (179>113,8) .
: , .
|
|
-1300 39 /.
1 .
, 64% .
, , .