DEVELOPMENT OF DIAGNOSTIC TECHNIQUE OF TURBINE BLADES OF GASTURBINE ENGINE (GTE) BY METHOD OF NATURAL VIBRATIONS

There the study objects are the turbine blades of GTE. The purpose is to develop the diagnostic technique of turbine blades of GTE by the method of natural vibrations. The influence of blade defects on the frequency and on the amplitude of their vibrations has been computed by theory. The new manner of determination of defects, the acoustic diagnostic system have been developed. The diagnostic technique, which allows to determine the defects of turbine blades as the cracks, the change of geometry of blade feather and of material structure, has been developed. The diagnostic system, the diagnostic technique, the software have been brought into production of turbine blades of GTE. The application field is the diagnostics of blade blanks, of finished blades of GTE during the production, during the operation and during the repairAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio