汽轮机叶片故障分析及诊断方法研究

Integration of the Diagnosis Methods and the Analysis of the Faults for the Steam Turbine Blade

汽轮机组在运行过程中,由于设计、制造和运行等多种原因,经常会发生叶片损伤和损坏事故,严重影响机组的安全。叶片的故障诊断具有重要意义。讨论了模态分析、模糊模式识别等振动方法用于叶片的故障诊断,并介绍了当前国内外采用的叶片故障诊断系统。

During the operation course of the steam turbine group, there are always damages to the blade because of the reasons that include manufacture and the operation, which influences the safety in production in the factory seriously. It is essential of the diagnosis for the blade. It gives the diagnosis methods that the analysis of the mode and the fuzzy diagnosis used in the diagnosis, and also introduces the diagnosis systems at briefly present.