Approximate analytical determination of vibrodiagnostic parameters of the presence of a crack in an elastic body under superharmonic resonance

Author： Matveev V.   Boginich O.  

Publisher： Springer Publishing Company

ISSN： 0039-2316

Source： Strength of Materials, Vol.42, Iss.4, 2010-07, pp. : 363-373

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Abstract

We discuss an approximate analytical method for calculating the main parameter of nonlinearity of vibration of an elastic body with a closing crack, which is simulated by a single-degree-of-freedom system with an asymmetric bilinear characteristic of the restoring force, under a strong 2nd-order superharmonic resonance.

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