Aerospace Instrument-Making Annotation << Back IMPROVEMENT OF METHOD INVESTIGATION OF TERMAL CONDUCTIVITY OF MATERIALS OF GTE DETAILS UNDER INFLUENCE OF CENTRIFUGAL ACCELERATIONS A.R. Lepeshkin The origin method and device with a radial and district heat conductors for investigations and determination of thermal conductivity of part materials of gas turbine engines (GTE) on the spin rig using the vacuum chamber in conditions of centrifugal accelerations. The results of the investigations of unsteady thermal state of heat-conductors in the fi eld of centrifugal radial and district accelerations are given. From the analysis of the results of experimental investigations it may be stated that the thermal conductivity of the heat-conductors increases with an increase of a rotation frequency. The anisotropy of thermal conductivity in the radial and circumferential directions is observed. Thus, this increase of the thermal conductivity signifi cantly associated with an increase of the electron middle velocity under the infl uence of centrifugal accelerations. The obtained results are of practical importance for the assessment of the thermal state of the parts of aircraft engines. Key words: method, thermal conductivity, centrifugal acceleration, heating, heat conductors, temperature, spin rig. Contacts: - Pp. 48-52.