...轴承；电主轴系统；固有频率；临界转速；质量矩阵；刚度矩阵[gap=845]Key words : rolling bearing; motorized spindle system; free frequency; critical speed; mass matrix; stiffness matrix..
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As a high performance ac asynchronous motor drive system, accurate torque and position control is necessary for high-speed motorized spindle.
作为一种高性能异步电动机传动，精确的转矩转速和位置控制对于高速电主轴来说是必需的。
Enigeering practices indicated that can't achieve optimization of the system overall performance only by improving the motorized -spindle or the frequency changer, but needing improving both.
工程实践表明，已不能通过单从电主轴单元或变频器单元的设计与优化来实现系统整体性能指标的最优化，而需要从机电全局角度来设计与优化变频调速系统。
The main transmission system of CNC carving and milling machine for woodworking extensively USES motorized spindle.
目前数控镂铣机的主传动系统广泛采用电主轴的结构形式。
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