Rotating magnetic field type driver for active controlling torsional vibration of rotational axis system

A rotating magnetic field and active control technology, applied in the fields of motor vibration suppression control, AC motor control, control system, etc., can solve problems such as complex structure and difficult implementation
CN1761148AInactive Publication Date: 2006-04-19TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2006-04-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The driver includes motor, dwang of stator, and link rod, and straight vibrator, interface board of computer, frequency converter and revolution speed sensor. Measuring apparatus for torsional vibration and revolution speed sensor are installed on working-spindle series. Output signals of measuring apparatus for torsional vibration and revolution speed sensor are connected to interface board of computer. Output end of D / A converter of vibration signal in interface board of computer is connected to the input end of power amplifier. D / A converter for speed regulation of motor controls frequency converter to output frequency of power source. Through dwang of stator and link rod, the motor is connected to straight vibrator to make stator of motor generate superimposed components of rotating magnetic field and torsional vibration.
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Description

technical field

[0001] The invention belongs to the control technology of shafting torsional vibration in electric and mechanical systems. Background technique

[0002] In aviation, spaceflight, electric power, machinery, engine and other industries, the torsional vibration of shafting is a problem worthy of attention. Shafting torsional vibration is easy to damage the shafting unknowingly, resulting in significant economic losses. Due to the complexity of some shafting structures, approximate assumptions or empirical formulas are mostly used in the current calculation and analysis of torsional vibration, so that the results of the current theoretical analysis of shafting torsional vibration, especially the torsional vibration amplitude and The torsional vibration stress value deviates greatly from the actual value, so after the theoretical calculation and analysis of the torsional vibration characteristics of the shafting system, it is necessa...

Claims

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