【摘要】 应用PH线性化方法、迭代法,近似求解了螺旋槽内稳态流动场的非线性雷诺方程,求得了气体动压和速度分布的解析解．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．更多还原

【Abstract】 The operating stability and reliability of spiral grooved gas seals are closely related to geometric parameters,so it is important to optimize these parameters.Using PH linearization and iterative method,a nonlinear Reynolds equation for a steady-state flow field is solved,and the approximate expressions for gas dynamic pressure and velocity in the spiral groove are obtained.And then using multi-objective optimization method,a trade-off function of rigidity-to-spillage ratio is derived and the optimized geometric parameters are obtained by solving the objective function.更多还原