Abstract: With the aspects of detecting malfunction, the calculation of gas and thermal field and strength analysis, the comprehensive research on nozzle guide component of certain turbo fan engine has been performed in the paper Accordingly, excessive burning is determined as the failure cause and measure of eliminating malfunction are provided The proceeding test shows that the improving measure is effective

Key words: Turbofan engine;Turborotor;Fault detection;Fault analysis;Computer aided analysis

摘要： 从故障检测、流场和温度场的计算以及强度分析四个方面,对某型涡轮风扇发动机高压涡轮导向器进行了全面的研究。确定了导向叶片的故障起因为超温过烧,从而提供了相应的排故措施。由目前正在进行的试验验证工作来看,改进措施的效果非常理想。

关键词: 涡轮风扇发动机;涡轮导向叶片;故障检测;故障分析;计算机辅助分析