Implications of a Military Turbofan's High-Pressure Turbine Erosion for Blade's Creep-Life Consumption

摘要

High-performance aircraft, especially for military purposes, are complex in design and required to operate under severe stresses and temperatures [1]. Thus, designers and users of these aircraft continually seek greater reliability, increased availability, enhanced performance, and improved safety, as well as low life-cycle costs.rnIn-service costs consist mainly of those associated with [2] 1) the fuel consumed during the operation, and 2) the replacement of the system's components. Therefore, any extensions of life expectations or reductions in fuel usage of an aeroengine directly lower the life-cycle cost and depend upon the types of operation or mission undertaken, operating conditions experienced, and rate of in-service engine deterioration. Each type of the latter has an adverse effect on the performance and reliable operational life of the aircraft.