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impulsis momenti fsevdoveqtoria. misi mimarTuleba ganisazRvreba<br />
marjvena burRis wesiT, i r -dan p i -sken brunvisas. impulsis momentis<br />
moduli tolia:<br />
mxaria.<br />
L = r ⋅ p sin α = � ⋅ p<br />
i<br />
i<br />
43<br />
i<br />
sadac α kuTxea r da p veqtorebs Soris, xolo � = r sinα<br />
Zalis<br />
materialur wertilTa sistemis (sxeulis) impulsis momenti uZravi 0<br />
wertilis mimarT, ewodeba L veqtors, romelic tolia igive 0 wertilis<br />
mimarT wertilebis impulsebis L i momentTa geometriuli jamis:<br />
L =<br />
n<br />
∑<br />
i=<br />
1<br />
[ r i × p i ]<br />
sxeulis impulsis momenti uZravi z RerZis mimarT ewodeba<br />
skalarul sidides, romelic tolia amave RerZze mdebare 0 wertilis<br />
mimarT L impulsis momentis veqtoris gegmilisa imave RerZze:<br />
L<br />
z<br />
=<br />
n<br />
∑<br />
i=<br />
1<br />
2<br />
m<br />
L = kg = j ⋅wm,<br />
wm<br />
n<br />
[ r i × p i ] = ∑<br />
i−1<br />
i<br />
i<br />
m v r<br />
dim L<br />
inerciis momenti<br />
i<br />
i<br />
2 −1<br />
= L MT<br />
materialuri wertilis (m) masis namravls brunvis RerZidan<br />
manZilis kvadratze ewodeba inerciis momenti I igive brunvis RerZis<br />
mimarT (nax. 26)<br />
RerZamde.<br />
I = m<br />
i<br />
sadac mi _ materialuri wertilis masaa, ri - manZili brunvis<br />
nax. 26<br />
2<br />
iri<br />
i
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