北京航空航天大学能源与动力工程学院,北京,100083
Published:2003
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QIAN Hui-hua, LI Hai, CHENG Tao, et al. Thermal Fatigue Analysis to Nozzle Guide Vanes[J]. 2003, 18(2).
DOI:
QIAN Hui-hua, LI Hai, CHENG Tao, et al. Thermal Fatigue Analysis to Nozzle Guide Vanes[J]. 2003, 18(2). DOI:
某型涡扇发动机在进行地面性能试验时
高压涡轮导向叶片多台次出现了严重裂纹故障。本文以其失效分析为背景
推导出导向叶片瞬态温度场的计算方法
并对该导向叶片进行了瞬态温度场数值分析
进而得出导向叶片的瞬态热应力分布与热疲劳寿命的计算结果。同时对此故障产生的原因进行进一步的分析。分析的结果与该机地面性能试验数据基本吻合
因此
此分析过程可作为热疲劳寿命计算的借鉴。
On the basis of malfunction detection
the calculation method for the transient thermal field of the nozzle guide vanes for a turbofan engine has been derived
and the transient thermal field analysed in a numerical way.Moreover
the calculation results of the transient thermal stress and the thermal fatigue life were obtained.In this paper
further investigation of the nozzle guide vane failure is performed in detail.
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