A Novel Estimation Method on Delta Engine Gas Temperature of a Certain Aero-Engine Based on Flight Data

A novel estimation method on Delta Engine Gas Temperature (DEGT) applicable for condition based maintenance of a certain military aero-engine was proposed in this paper to solve the problem that maintenance technique for national military aero-engine relatively fell behind. The application perspective of this proposed method in the condition monitor of military aero-engine was also discussed. The experiment analysis on a group of actual flight data indicated that the DEGT obtained via the proposed method was matched to the actual degeneration performance of the aero-engine, which could well reflect the condition of the aero-engine.