convergence ratio meaning in English

收敛比

Viable convergence ratio
可变收敛比
The solution formula of dwell time is deduced by using the pulse iteration method and the smoothing fourier transition method , and the formula can be simplified referring to workpiece shape . according to the anastomotic status of the tool and workpiece surface , we present the new model of the inherent relation among local pressure density , removal rate , convergence ratio and residual errors , and the corresponding formulas are given . the forming cause of the edge effect in the polishing process is analyzed , and the means which reduces the edge effect is put forward
2 、针对计算机控制光学表面成形( ccos )的加工方式、误差收敛特点，研制了去除函数呈高斯分布的双转子结构研抛模；采用脉冲迭代法、平滑因子傅立叶变换法推导出驻留时间的算法，求解过程中根据工件面形的特点作了各种形式的简化；提出了工件表面和研抛模的吻合误差与局部压强、材料去除率、收敛比之间内在关系的数学模型，并推导出相应的计算公式；分析了边缘效应产生的原因，在加工过程中采用相对压力因子对去除函数进行修正，可以消除边缘效应的影响。