A generation of electrical signals for nondestructive inspection of turbine parts in aerospace engineering

Аuthors

Korshakovsky S. I., Krasnenkov M. А.

MIREA — Russian Technological University (Lomonosov Institute of Fine Chemical Technologies), 78, Vernadsky prospect, Moscow, 119454, Russia

Abstract

A technique is suggested for nondestructive inspection of electroconductive turbine parts in aerospace engineering. The technique is based on generation of static magnetic field in a checked area and transformation of arising secondary magnetic field of whirling currents in this area into electric signals. The obtained results allow to define the form of these signals corresponding to typical defects in rotor blades of the turbine. The techniques of mechanical defect examination, temperature inspection, vibration and other factors supervision implementing for engine parts enable to provide operational emergency protection of the engine.