A trade-off function of rigidity-to-spillage ratio is derived and the optimized geometric parameters are acquired by solving the objective function.

• 继而利用多目标优化方法构建了气膜刚度与泄漏量之比的协调函数，并对该目标函数进行了近似求解，获得了最佳的螺旋槽几何参数值。