Apparatus and method for the non-destructive testing of the phys

Details Apparatus and method for the non-destructive testing of the phys Apparatus and method for the non-destructive testing of the phys

1980-08-25

1982-08-03

Ciarlante, Anthony V.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

73583, G01H 100, G01H 900

Patent

active

043422292

ABSTRACT:
A test procedure and test apparatus is described for measuring the degradation in the physical integrity of a structural part by measuring the rate of decay of the amplitude of vibration of the part after it has been set into vibration at its free resonant frequency mode. The presence of invisible imperfections in the part such as may occur as a result of metal fatigue or from the development of tiny flaws or cracks will cause an increase in the rate of decay of the amplitude of vibration of the part. By making periodic measurements of the rate of decay of a structural part which is used in a critical highly stressed application subject to vibration such as a jet engine mount, the periodic degradation due to fatigue can be determined and the part is removed from service at a safe period before the degradation reaches an unsafe limit.

REFERENCES:
patent: 2178252 (1939-10-01), Forster
patent: 3019387 (1962-01-01), Rowe
patent: 3043132 (1962-07-01), Schubring
patent: 3097523 (1963-07-01), Diamond
patent: 3106838 (1963-10-01), Crooks
patent: 3345861 (1967-10-01), Heath
patent: 3550434 (1970-12-01), Schroeer et al.
patent: 3580056 (1971-05-01), Warner
patent: 4041774 (1977-08-01), Morris et al.
patent: 4212201 (1980-07-01), Hirsch et al.
patent: 4318302 (1982-03-01), Choi
J. M. Carson and J. L. Rose, An Ultrasonic Nondestructive Test _Procedure for the Early Detection of Fatigue Damage and the Prediction of Remaining Life, Apr. 1980 research supplement.

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