OPTIMIZATION OF THERMO-MECHANICAL CYCLIC STRESSES AT CRITICAL POINTS OF HOT-SECTION COMPONENTS IN GAS TURBINE ENGINES
Journal Title: Проблеми тертя та зношування - Year 2016, Vol 71, Issue
Abstract
Estimation methods of thermo-cyclic durability of high-temperature alloys in critical points of hot part components of gas turbine engine and in conditions of accelerated thermo-cyclic tests are given in the article. The test specimens of heat resistant materials operates under thermo-cyclic conditions maximally closed to extreme operation mode of turbine guide vanes, turbine blades and turbine disks at their critical points, limiting the lifetime and specified life of aviation gas turbine engines and power plants. Possibility of using of boundary thermo-mechanical stresses empirical model is considered.
Authors and Affiliations
Y. A. PETRUK
Keywords
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