推 Lindemann :謝謝^^,應該走這條路的而不是用6猜5 03/19 15:18
推 kuromu :好強....... 03/19 15:30
4-5-6
用Euler-Lagrange e.g
L = (1/2)mV^2 - U
= (1/2)m(v + Ωr)^2 -U
= (1/2)mv^2 + mvΩr + (1/2)m(Ωr)^2 -U
= (1/2)mv^2 - m(-vΩr -(1/2)(Ωr)^2 + U/m)
= (1/2)mv^2 - Ueff
dL/dr = d(-Ueff)/dr
d(dL/dv)/dt = ma + d(Ueff)/dt
so.. FΩ = ma = -d(Ueff)/dr -d(Ueff)/dt
約略這樣吧 意思到
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