xyz (.3). . , vjr
vj=vC+vjr (7)
, ,
rj=rC+rj (8)
Ko= S mj(rC+rj)×(vC+vrj)=
rC×vC S mj+ rC×S mj vrj+(S mj rj)×vC+S mj rj×vrj (9)
Smjrj=MrC=0 Smjvrj=d/dtSmjrj=0 (10)
KC= S mj rj×vrj (11)
KO= KC+ rC× M vC (12)
. . .
, .
:
, .
. .
δA(f)=F*dσ*cos(F,v) . F δA(F)=Fx dx+Fy dy+Fz dz
: 1.
. . . .
. . . . δ =∑δ =0
. 1: . A(R)=∑A(Fk)
2: . . A=∑Ak
, , .
1) . + . . . A(G)= + G*H.
2) . A(F)=-F*S
3) . (F)=-(ch2)/2. . (F)=c/2*(x02-x12) 0 1 .
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