电脑技术在振动时效的应用

Author：JENNY   Source：COMPANYSELF   Date：2013-06-26 22:35:10

From the beginning of the 1990s, computers and other technology began gradually applied to the vibratory stress relief which has vibratory stress relief technology milestone. This new method of vibratory stress relief its features are: including computers, magnetostrictive vibrator, multiple acceleration sensors and multi-group dynamic strain sensor, said magnetostrictive vibrator loaded on the surface to be subjected to periodic aging Centrifugal force, acceleration sensors and multiple sets of dynamic strain aging sensors are provided in the workpiece to be prone to cracking and deformation on the site of action for the collection of acceleration and strain signals, both signals through the measuring circuit to the sensor data acquisition circuit by the data acquisition circuit data input control computer, the computer analysis of different frequencies and the corresponding relationship between the dynamic strain and sort, select the maximum value of the first few dynamic strain frequency corresponding to a vibration type, and then outputs a control by the control circuit magnetostrictive vibrator drive signal adjustment circuit current and working hours, the magnetostrictive vibrator to vibrate at a frequency until the completion of the aging.
The present invention discloses a novel method of vibratory stress relief, which includes computers, magnetostrictive vibrator, acceleration, and dynamic strain sensor exciter load applied to the surface of the workpiece periodic excitation force, two sensors are provided in the workpiece easy to crack and deformation of the site, computer analysis of different frequencies and sensors to collect the correspondence between dynamic strain and sort, select the maximum value of the first few dynamic strain corresponding frequency as the vibration mode, and then adjust the exciter work current and time, the frequency of the vibration exciter to the time to completion. The present invention uses as a vibration source magnetostrictive vibrator, vibrating force controlled by the computer, the vibration can immediately respond to changes to meet the requirements of dynamic stress, computer-controlled local oscillator at the resonant frequency of vibration, and timely adjust the exciter output current, analyze and judge vibratory stress relief equipment vibration-and vibration time, real-time detection of dynamic stress, give an accurate amount of change as an effect of residual stress criterion.

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