Peculiarities of Vibration Diagnostics of Cracks in Geometrically Nonlinear Beams

Вибрационные машины и технологии: сборник научных трудов 2008
Semjons Cifanskis, Vitālijs Beresņevičs

The dynamics of flexural vibrations of a geometrically nonlinear cracked bar under external harmonic excitation is investigated. A new nonlinear method for detection of cracks is developed. Unlike traditional procedures, the proposed method permits recognition of the legitimated response to nonlinearity of the crack through interfering signals from the geometrical nonlinearity of a bar. Besides, this method shows capability of high detection sensitivity and testing reliability.

Keywords
Vibrodiagnostika, plaisa, sija

Cifanskis, S., Beresņevičs, V. Peculiarities of Vibration Diagnostics of Cracks in Geometrically Nonlinear Beams. In: Вибрационные машины и технологии: сборник научных трудов. Курск: Курский государственный технический университет, 2008, pp.421-427.

Publication language
Russian (ru)