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1 璺
2
2.1
2.2
2.3 㳿
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3.1. .
3.2. .
ϳ , , - , 쳿 , .
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瑺, 瑺 , , 瑺 .
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: , , , , , , , , , 璺 .
1.1
Ø22
Ø 22 璺, ;
, ;
, ;
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6,6 ,
1.1.1 ISO 286 1 - 2002
Ø22
Ø22
1.1.2 .
1.1.3
Dmax = Dn + ES; (1.1)
Dmin = Dn + EI; (1.2)
dmax = dn + es; (1.3)
dmin = dn + ei; (1.4)
Dmax, Dmin, , , ;
dmax, dmin - , , ;
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Dn, dn, - 瑺, ;
ES, EI , , ;
es, ei - , , .
Dmax = 22,000+0,013=22,013
Dmin = 22,000+0= 22,000
dmax = 22,000+0,021=22,021
dmin = 22,000+0,008=22,008
1.1.4 TD , S
TD = Dmax - Dmin = ES- EI; (1.5)
Td = dmax - dmin = es - ei; (1.6)
TΣ = TD + Td ; (1.7)
= 22,013-22,000=0,013
Td = 22,021-22,008=0,013
Σ = 0,013+0,013=0,026
1.1.5 璺
Smax = Dmax - dmin = ES - ei (1.8)
(1.9)
1.1.6 瑺 ,
1.2
Ø22
1.2.1
Ø 22
Ø 22
1.2.2
1.2.3 (1.1 - 1.4)
Dmax = 22,000+0,073=22,073
Dmin = 22,000+0,040=22,040
dmax = 22,000+0=22,000
dmin = 22,000+(-0,021)= 21, 979
1.2.4 TD , Td (1.5 - 1.7)
TD = 22,073-22,040= 0,033
Td = 22,000-21,979=0,021
TΣ =0,033+0,021=0,054
1.2.5 ,
Smax = Dmax - dmin = ES - ei (1.11)
Smin = Dmin - dmax = EI -es (1.12)
Smax=22,073 - 21,979=0,094
Smin=22,040-22,000=0,040
1.2.6 瑺
1.3
Ø22
1.3.1
Ǿ22
Ø22
1.3.2 瑺
1.3.3 (1.1-1.4)
Dmax = 22,000+0,028=22,028
Dmin = 22,000+0,007=22,007
dmax = 22,000+0,062=22,062
dmin = 22,000+0,041=22,041
1.3.4 TD , Td, (1.5 - 1.7)
TD = 22,028 - 22,007=0,021
Td = 22,062 - 22,041=0,021
TΣ = 0,021+0,021=0,042
1.3.5 Nmax, (1.8 - 1.11)
Nmax = dmax - Dmin = es - EI
=22,062-22,007=0,055
1.3.6 瑺