Using empirical formula, the feed rate optimization of NC code for machining free-form surface was realized under constraint of nearly constant cutting force,so as to decrease the fluctuation of cutting force. Thus, the machining quality and efficiency of part were improved and the service life of cutting tool was prolonged.
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Using an empirical cumulative plastic strain formula, a method for calculating the traffic load induced deformation was proposed.
针对交通荷载作用下软土地基的变形问题，采用累积应变的经验公式计算其累积沉降。
In practical work, new sample data is often obtained continually, so these new data can be joined the empirical equation of regression by using recursive formula, and form a dynamic forecast system.
在实际工作中，往往会不断得到新样品数据，可利用递推公式不断地把新信息加入到经验回归方程中去，以构成一个动态的预测系统。
The empirical formula is gained by using nonlinear regression of those operation points.
对这些操作状态进行多元非线性回归，得到在全操作范围都通用的经验公式。
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