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SERVO MOTOR CONTROLLER HAVING SELF-MEASURING FUNCTION AND SELF-MONITORING FUNCTION OF MECHANICAL STIFFNESS
SERVO MOTOR CONTROLLER HAVING SELF-MEASURING FUNCTION AND SELF-MONITORING FUNCTION OF MECHANICAL STIFFNESS
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机译:具有机械刚度的自测量功能和自监测功能的伺服电机控制器
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摘要
A servo motor controller includes a speed command generating unit for generating a speed command value of the servo motor, a speed detecting unit that detects a speed of the servo motor, a torque command generating unit for generating a torque command value, a sine wave generating unit for generating a sinusoidal disturbance value, a frequency response calculating unit for calculating a frequency response when the sinusoidal disturbance value has been input to a speed control loop, a resonance frequency detecting unit for detecting a resonance frequency at which a gain is maximized, a resonance frequency storing unit for storing the resonance frequency, at least one filter for attenuating a specific frequency band component included in the torque command value, and a resonance frequency comparing unit for measuring stiffness of a machine tool based on the resonance frequency and adjusts the filter with respect to the resonance frequency.
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