Nanjing Estun Automation Co., Ltd

Estun Automation Technology Co. Ltd

Dandan Qi

Bo Wu

Kaifeng Yang

Wei Qian

Renkai Fan

A vibration suppression method for a servo motor and a load multistage drive system is provided. For a number N of fixed vibration frequencies and one vibration frequency varying with a load position existing in a multistage drive mechanism, a number of N+1 vibration suppression filters are adopted, and each filter is configured to eliminate a corresponding vibration frequency. Fixed vibration frequencies and a vibration frequency varying with a load position in a multistage drive system are measured by using an offline method, and the varied vibration frequencies are made into a two-dimensional table related to the load positions. The fixed vibration frequencies are eliminated by using fixed-frequency parameter vibration suppression filters; and the varied vibration frequencies are eliminated by using a variable-frequency parameter vibration suppression filter, and the vibration frequencies are obtained in real time according to the load positions and the two-dimensional table.

Vibration suppression method for servo motor and load multistage drive system

A method of measuring mechanical resonance frequency using a servo driver including the steps of: having the servo driver work under a torque control mode, by applying in the servo driver a preset torque drive signal, the motor drives the mechanical components in a microvibration state; collecting actual speed signals of the motor to obtain the actual speed signal sequence of the motor; the actual speed signal sequence of the motor being passed in sequence through a certain number of band-pass filters having a fixed pass-band frequency and different center frequencies to obtain filtered speed signals; the filtered speed signal sequences output from each of the band-pass filters being changed into absolute values and then accumulated to obtain accumulation values; comparing the accumulation values obtained from the signal sequences output from the certain number of band-pass filters, and the center frequency of the band-pass filter corresponding to the largest accumulation value being the mechanical resonance frequency. By using the method, an automatic measurement of the mechanical resonance frequency of a mechanical device can be achieved.

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Nanjing, China

Dandan Qi