STRAIN GAUGING APPLIED TO FULL-SIZE ENGINE

A.N. Mikhailenko, Т.I. Pribora

Under consideration are peculiarities of providing a strain gauging for critical parts of GTE compressor rotors. Location of a current-collecting device defines its design. Unavailability to place the current-collecting device in the engine inlet, cold section urges the latter to be fitted in the hot exhaust area of the engine. This, in its turn, dictates strong requirements to assuring a reliable cooling of the current-collecting device parts. During the conducted researches get resistive-strain from workings resistive-strain sensor, glued on rotor details, requiring a practical strengthening estimation.

Key words: resource, stress, the static analysis, the sensor, a slip ring, an electrical signal, an air flow, cooling, the strain gauge.