ABç»å¯¹ãç¸å¯¹ãçµè¿é度åå«ä¸ºVaãVrãVeã
é度ç¢éçå¼ï¼Va=Vr+Ve
ABç»å¯¹é度大å°ä¸º
Va=Ve*sin(Ï/2)=Ï*OE*sin(Ï/2)=Ï*2Rcos(Ï/2)*sin(Ï/2)
ABç¸å¯¹é度大å°ä¸º
Vr=Ve*cos(Ï/2)=Ï*OE*cos(Ï/2)=Ï*2Rcos(Ï/2)*cos(Ï/2)
ABç»å¯¹ãç¸å¯¹ãçµè¿ååãçµè¿æ³åãç§æ°å é度åå«ä¸ºaaãarãaetãaekãakã
å é度ç¢éçå¼ï¼aa=ar+aet+aen+ak
åç¢éæ¹åå¦å¾ï¼å¤§å°ï¼
aaæªç¥ï¼
aræªç¥ï¼
aet=0ï¼
aen=Ve^2/R=(Ï*2Rcos(Ï/2))^2/R
ak=2Ï*Vr=4(Ï^2)*Rcos(Ï/2)*cos(Ï/2)
åxè½´æå½±
0=ar-aen*sin(Ï/2) (1)
åyè½´æå½±
aa=ak-aen*cos(Ï/2) (2)
(1)(2)èç«å¯æ±åºaaãar
å¦ææ±å¼ä¸º"-"åçå®æ¹åä¸æ设ç¸åã
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