某型涡扇发动机进口温度畸变的稳定性评定试验技术研究

介绍了温度畸变发生器的组成及工作原理。通过开展某型涡扇发动机与温度畸变发生器的联合畸变试验,确定了发动机各工作状态下的临界热扰动值,获得了该型发动机的温度畸变敏感系数,建立了适用于工程实际的发动机温度畸变方法。试验证明,温度畸变发生器的建立是成功的,是全面开展发动机稳定性评定的有力工具,对我国制定航空发动机进口温度畸变规范有重要意义。 

Stability Assessment Test Technology of a Turbofan Engine Inlet Temperature Distortion

This paper discusses the constitution and principle of temperature distortion generator.Based on the inlet temperature distortion experiments of a turbofan-engine,the critical thermal agitation values under each engine operating condition were ascertained,the distortion sensitivity coefficients of the engine were determined,and a practical technical aero-engine stability assessment method for inlet temperature distortion was presented.It is proved that the temperature distortion generator is a useful tool for aero-engine stability assessment.The successful development of a temperature distortion generator will have significant effects on the formulating of our country's assessment criterion of aero-engine inlet temperature distortion.