V. 2er(e)+e)】 u(mr)=-er 前一式是纷 注意:在阴日+e)+r=0 x心J始条件」 代入后一式,得 W+e(W+r')'+}V=0 上式即所谓“近轴轨迹方程”. 和旁轴轨迹方程(高斯轨迹方程)对比: V(,')'+V=0 ( ) ( ) ( ) ( ) ( ( ) ) 0 0 2 0 0 2 2 0 2 0 0 0 0 0 d d 2 2 2 2 2 2 z z z z v V z e m v z z e m z z z m v v e V v e eV z m eV z v m m eV z e e v V z m m m = = − = = + = + 和旁轴轨迹方程(高斯轨迹方程)对比: ( ( ) ) ( ) ( ( ) ) ( ( ) ) ( ( ) )( ( ( ) ) ) 0 0 0 0 2 1 2 2 2 1 0 2 1 0 4 z z z z z z z z e v V z m v mv r eV r e e V z m V z r eV r m m V z V z r V r = + = − + + + = + + + =