Vibrational stress relief

Details Vibrational stress relief Vibrational stress relief

1980-12-03

1983-05-03

Kreitman, Stephen A.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

148 129, G01H 1300, C21D 104

Patent

active

043816738

ABSTRACT:
A method and apparatus for accomplishing stress relief in fabricated structures by application of dynamic loading induced by vibration to relieve residual stresses sufficiently to achieve dimensional stability. Maximum dynamic loading of the structure by use of an accelerometer attached to the structure is obtained by scanning a range of vibration frequencies to arrive at maximum output of the accelerometer corresponding to the maximum in the dynamically applied loading and tuning the vibration to a frequency corresponding to the peak in the acceleration curve.

REFERENCES:
patent: 3622404 (1971-11-01), Thompson
patent: 3677831 (1972-07-01), Pezaris et al.
patent: 3741820 (1973-06-01), Hebel, Jr. et al.

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