An Alternating Torque Excited Transversal Torsion Coupled Resonant Vibration Aging Method

Abstract

The invention relates to a method for exciting vibration time efficiency of transverse and torsional vibration coupling resonance by alternate torque, which is characterized in that alternate torque output by a torsional vibration motor is taken as an external excitation torque to drive a high rigidity rotating shaft for rotating, alternate torque can excite the transverse vibration with same frequency, simultaneously, another direction transverse vibration which is characterized in that the value is sum or difference of motor rotation frequency and alternate torque frequency is excited, when alternate torque frequency is equal to an certain-step torsion inherent frequency of high rigidity rotating shaft, at moment, transverse and torsional vibration are enhanced, transverse and torsional vibration coupling resonance is generated by the high rigidity rotating shaft, and the generated corresponding dynamic stress can eliminate the residual stress of the high rigidity rotating shaft. The method solves the problem that the time efficiency of transverse and torsional vibration coupling resonance is in the control of motor rotating speed, residual stress of the high rigidity rotating shaft can be eliminated through a mode that alternate torque excites the transverse and torsional vibration coupling resonance, efficiency is increased, and security and reliability for production can be enhanced.

Description

technical field [0001] The invention relates to a vibration aging device and a method thereof in the field of mechanical processing, in particular to an alternating torque excitation transverse torsional coupling resonance vibration aging method. Background technique [0002] Residual stress will be generated during the whole machining process of the rotating shaft. The existence of residual stress will reduce the dimensional stability of the rotating shaft, causing fatigue damage to the rotating shaft during the working process, and the failure of the rotating shaft at high speed will cause serious damage. Use a rotating motor to drive the rotating shaft to rotate. When the frequency corresponding to the rotating speed of the motor is equal to a certain natural frequency of the lateral vibration and a certain natural frequency of the torsional vibration, the rotating shaft will undergo transverse torsional coupling resonance. However, this method has some shortcomings: First...

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Problems solved by technology

[0003] The invention provides a method of alternating torque to excite transverse torsional coupling resonance vibration aging, which solves the problem that the timeliness of transverse torsional coupling resonance vibration is limited by the motor speed, and uses the alternating torque generated by the torsional vibration motor to excite transverse torsional coupling resonance to eliminate Residual stress, improving the safety and reliability of production

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