8. pÅednáška
8. pÅednáška
8. pÅednáška
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Mechanismy s proměnným převodem<br />
Dynamika II, <strong>8.</strong> přednáška<br />
A<br />
řešení rozkladem pohybu<br />
B<br />
3<br />
4<br />
2<br />
v<br />
r<br />
B,<br />
a r<br />
Bt<br />
ω 2 ,ε 2<br />
A<br />
D<br />
r r<br />
v , a<br />
C<br />
C<br />
Ct<br />
A<br />
Coriolisova konstrukce<br />
= ω ⋅ AB<br />
= ε ⋅AB<br />
vB<br />
2<br />
B<br />
a<br />
Bt 2<br />
a<br />
Bn<br />
= ω<br />
2<br />
2<br />
⋅AB<br />
C<br />
D<br />
r<br />
a<br />
r<br />
a<br />
C<br />
r<br />
= a<br />
r<br />
= a<br />
41<br />
r<br />
+ a<br />
r<br />
+ a<br />
C 41n<br />
a<br />
41t<br />
= ε41<br />
⋅<br />
2<br />
a<br />
41n<br />
= ω41<br />
⋅<br />
a<br />
a<br />
Cx<br />
Cy<br />
= a<br />
= a<br />
34<br />
41t<br />
34<br />
1<br />
r<br />
+ a<br />
r<br />
+ a<br />
41t<br />
CD<br />
CD<br />
Cor<br />
⋅cos<br />
ψ − a<br />
⋅cos<br />
γ − a<br />
34<br />
41n<br />
41n<br />
r<br />
r<br />
ψ v34,<br />
a34<br />
r<br />
+ a<br />
ω 41 ,ε 41<br />
Cor<br />
a r<br />
41t<br />
┴CD<br />
⋅cos<br />
γ − a<br />
⋅ sin γ − a<br />
41t<br />
34<br />
γ<br />
D<br />
r r<br />
v ,<br />
a r<br />
41<br />
a 41t<br />
41n<br />
γ<br />
a r 34<br />
a r<br />
γ<br />
41n<br />
C<br />
║CD<br />
⋅ sin γ + a<br />
⋅ sin ψ + a<br />
a r<br />
Cor<br />
ψ<br />
║BC<br />
C<br />
Cor<br />
Cor<br />
a r 31<br />
µ<br />
a r<br />
Cx<br />
⋅ sin ψ<br />
⋅cos<br />
ψ<br />
ψ<br />
a r<br />
a r Cor<br />
Cy<br />
4 : 1<br />
B<br />
B<br />
┴BC<br />
3 : 4<br />
a<br />
Cor<br />
=<br />
=<br />
2<br />
a<br />
+<br />
⋅ ω<br />
2<br />
2<br />
41n<br />
= = ω41<br />
⋅<br />
41<br />
⋅ v<br />
34<br />
v41<br />
BD<br />
D<br />
D<br />
ω = 41<br />
ε 41 =<br />
BD<br />
C<br />
v 41<br />
BD<br />
a 41t<br />
BD<br />
C