Study on Simulation Test Methods of OEI Emergency Conditions of Aero-engines
This study aims to investigate simulation test methods for one engine inoperative conditions of aero-engines,and two kinds of thermal loading test techniques are studied,with a focus on the induction coil heating test method and the thermal simulator heating test method.The research began with conducting thermodynamic-mechanics tests on the induction coil and thermal simulator,and the technical characteristics of the two experimental methods were clarified.Subsequently,through simulation and experiments on a typical nickel-based super alloy under both equipment,the impact of OEI on material properties under two heating methods was analyzed,and the applicability of induction heater and thermal simulators in simulating OEI conditions was compared.The research results indicate that the thermal simulator has the advantage of high-temperature control precision,and can form a large uniform temperature zone on the surface of the specimen.This makes it better suited for simulating the OEI condition.In contrast,the induction coil is difficult to avoid introducing a large thermal gradient on the specimen surface,which affects the temperature control accuracy and may cause large thermal stress,leading to poor simulation effect of OEI working conditions.Therefore,the thermal simulator test method is recommended as the first choice for simulating OEI conditions.
one engine inoperativeinduction heaterthermal simulatorsimulation test methodsuper alloy
NETL
NSTL
万方数据
