.
, , , .
: , L, J.
.
. , .
Jz=∑miri2 [J]=2
.
,
, .
,
g , F
= Frsinα = Fl []=
rsinα=l - .
.
Li - r,
, i
Li - ,
ri i.
Li = riisinα = miVirisinα =Pil
l=rsinα - , α - ri i.
.
= ∑Mi,
, :
M=dL/dt
, Lz =Jzω, :
M=Jzdω/dt=Jzε ε=M/Jz
ε = dω/dt - .
:
Dt
.
( ).
( ) r, , m0. , m. m .
, .
m :
mg - ;
N1 - ;
:
N/ - ;
N1/ - m
mhg - ;
:
N - ;
No ;
G , m0.
:
1. :
2. :
|
|
3. :
4. :
5. :
6. :
7. :
.
m, | m0, | h, | R, | r, | t,c | <t>,c | ||||
1 2 3 4 5 | ||||||||||
60.20.2 | ___ | 0.35 0.001 | ___ | 2251 | 2.88 | 2.94 | 2.96 | 2.90 | 2.96 | 2.928 |
60.20.2 | 621 | 0.35 0.001 | 941 | 2251 | 3.49 | 3.49 | 3.54 | 3.49 | 3.51 | 3.504 |
77.20.2 | 621 | 0.35 0.001 | 941 | 2251 | 3.03 | 3.09 | 3.08 | 3.07 | 3.07 | 3.068 |
77.20.2 | 621 | 0.35 0.001 | 2141 | 2251 | 4.88 | 5.11 | 5.16 | 5.10 | 4.97 | 5.044 |
:
:
:
, , ,
:
=1,87×0,036=0,067
=1,87×0,022=0,041
=1,87×0,023=0,043
=1,87×0,115=0,215
|2.88-2.928|=0.048 | 0.048<0,067 | |||||
|2.94-2.928|=0.012 | 0.012<0,067 | |||||
|2.96-2.928|=0.032 | 0.032<0,067 | |||||
|2.90-2.928|=0.028 | 0.028<0,067 | |||||
|3.49-3.504|=0.014 | 0.014<0,041 | |||||
|3.54-3.504|=0.036 | 0.036<0,041 | |||||
|3.51-3.504|=0.006 | 0.006<0,041 | |||||
|3.03-3.068|=0.038 | 0.038<0,043 | |||||
|3.09-3.068|=0.022 | 0.022<0,043 | |||||
|3.08-3.068|=0.012 | 0.012<0,043 | |||||
|3.07-3.068|=0.002 | 0.002<0,043 | |||||
|4.88-5.044|=0.164 | 0.164<0,215 | |||||
|5.11-5.044|=0.066 | 0.066<0,215 | |||||
|5.16-5.044|=0.116 | 0.116<0,215 | |||||
|5.10-5.044|=0.056 | 0.056<0,215 | |||||
|4.97-5.044|=0.074 | 0.074<0,215 | |||||
.
:
1.
<t1>=2.928 (c.)
<t2>=3.504 (c.)
<t3>=3.068 (c.)
<t4>=5.044 (c.)
2.
1=0.082 (/2)
2=0.057 (/2)
3=0.074 (/2)
4=0.028 (/2)
3.
1=3.64 (/2)
2=2.53 (/2)
3=3.29 (/2)
4=1.24 (/2)
4.
M1=0.013 (×)
M2=0.013 (×)
M3=0.017 (×)
M4=0.017 (×)
5.
I1=0.0036 (×2)
I2=0.0051 (×2)
I3=0.0052 (×2)
I4=0.014 (×2)
6.
7.
m, | R, | a,/2 | e,c-2 | M,× | I,×2 | , c-1 | , | |
0,0602 | 0,082 | 3,64 | 0,013 | 0,0036 | 10,66 | 0,038 | ||
0,0602 | 0,094 | 0,057 | 2,53 | 0,013 | 0,0051 | 8,87 | 0,045 | |
0,0772 | 0,094 | 0,074 | 3,29 | 0,017 | 0,0052 | 10,09 | 0,052 | |
0,0772 | 0,214 | 0,028 | 1,24 | 0,017 | 0,014 | 6,25 | 0,088 |
.
|
|
, , , .
.
Þ
, , , , , .
.
Þ Þ
Þ
Þ
.
,
- , ;
;
, ;
a).
).
).
I1=0.0036 (×2)- .
, .. , , ..
.
.
.
:
:
:
=0,01
.
1. 2. 3.
EI = /I=0.021
EI = /I=0.01
,
: , , .
, , , .