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来源：百度知道 编辑：UC知道 时间：2024/05/17 04:34:13
Estimation Of The Cutting Force After the output torque of the AC spindle motor is calculated, the estimation procedure to obtain the cutting force is identical to the previous method [4]. Because the detailed description of the procedure is given in Huh et al. [4], a brief explanation is shown here for reader's interest.A model of the AC spindle-drive is composed of the mechanical parts (the spindle drive) and the electrical parts (the AC Induction motor). The rotational equation of motion for the spindle.The above equation is discretized with the zero-order-hold sampler and can be expressed in the following form to obtain the estimation of the total external torque.where h is the sampling period (= 0.05 second) and b is the model parameter (). The equivalent damping coefficient is known to be sensitive to temperature changes, thus updated automatically right before the tool contacts the workpiece [4]. The estimated total external torque includes not only the cutting torque applie

Estimation Of The Cutting Force After the output torque of the AC spindle motor is calculated, the estimation procedure to obtain the cutting force is identical to the previous method [4]. 在计算AC主轴电机输出转矩以后，对切削力的估计，为获得切削力的估计程序与前面的方法【4】相同。Because the detailed description of the procedure is given in Huh et al. [4], a brief explanation is shown here for reader's interest. 因为此程序的详细叙述在Huh等人的文献【4】中已有提供，所以这里为了读者的关心起见做简单的解释。A model of the AC spindle-drive is composed of the mechanical parts (the spindle drive) and the electrical parts (the AC Induction motor). AC主轴传动的模型有机械零件（主轴传动）和电气零件（AC感应电机）组成。The rotational equation of motion for the spindle.主轴运动的旋转方程。The above equation is discretized with the zero-order-hold sampler and can be expressed in the following form to obtain the estimation of the total external torque.上述方程以零阶保持取样器离散化，并可以下面的形式表达，以获得总外转矩的估计值。where h is the sampling period (= 0.05 second) and b is the model parameter (). 式中h为取样周期（＝0.05秒），b为模型参数（）。The equivalent damping coeffic