1. (/3) () H 4/3
=
-, . 140.
(/)- ,
F- , .
n- ,
()- ( =2)
Ŋ- , , , 50 1 , ŋ =1
∆(0)- .
V1 (3/)- ( 13500 3/ =1,43/).
= =0,001 /3
= = =
v m=0,65
v′ m=1,3
fe=800(v′ m)3=800 43,24=34595
2.
D=
ω (/)- .
D=
1. um (/)
um =2,2 v′ m=2,2 3,51=7,7 /
2. () , (/3) m
= (5-F/4)d H, d ,
d=4,95 v m (1+0,28 )=4,95 1+
=(5-1/4)94,2 3,7=117,4
3. (/3) u(/), um (/),
u . 4,5 /.
=r cm
r , u/um r=0,67 (u/um)+1,67 (u/um)2-1,34 (u/um)3
r=0,67 0,9+1,67 0,92-1,34 0,93=0,98
=0,98 0,001=0,00098
4. ()
= , - ,
=8,43(1-u/um)5+1=8,43(1-0,9)5+1=1,00008≈1
=1
5. um (/3) ()
C=s1 cm, s1 , / F
s1=3(/)4-8(/)3+6(/)2=1
= 1 0,12=0,12 (/3).
:
1. =60 , s1=3(60/117,4)4-8(60/117,4)3+6(60/117,4)2=0,68
C=0,68 0,001=0,00068(/3)
|
|
2. =80, s1=3(80/117,4)4-8(80/117,4)3+6(80/117,4)2=0,85
=0,85 0,001=0,00085(/3)
3. =100 , s1=3(100/117,4)4-8(100/117,4)3+6(100/117,4)2=0,99
=0,99 0,001=0,00099(/3)
4. (/3) ()
= s2 c s2- u (/) /x ty:
ty= uy2/x2=4,5
s2=1/(1+5 ty+12,8 ty2+17 ty3+45,1 ty4)2=4,9 10-5
5. (/), (/3) 0,07 /.
,
=( F D ŋ / 8 V1 cm)3/4
H=(140 0,07 0,3 3/4=0,02 .
.
, . , -15-700, -300, - 100S2. . , -86, , :
- () ,
- ,
- um,
- ,
- ,
- .
1. .. .. /,2007-189
2. .. - .:,1982-312.
3. .. .: ,1991-360.
4. .. . 2.: .1961-538.
5. .. .: .1988-368.