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首页> 外文会议>Failure Prevention: Implementation, success stories and lessons learned >DIAGNOSING THE ROOT CAUSE OF TURBO-MACHINERY BLADE FAILURES, PART 2: CASE STUDY OF AN AXIAL FLOW COMPRESSOR FAILURE
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DIAGNOSING THE ROOT CAUSE OF TURBO-MACHINERY BLADE FAILURES, PART 2: CASE STUDY OF AN AXIAL FLOW COMPRESSOR FAILURE

机译：诊断涡轮机叶片故障的根本原因，第2部分：轴流压缩机故障的案例研究

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摘要

This paper presents a case study for root cause failure analysis based on Part 1 methodology. A failure of an axial flow compressor blade is investigated, and the steps involved with the failure analysis are described in detail. The scope of the failure analysis includes many analyses that arc commonly used to investigate machinery failure, including a site visit, metallurgical analysis, dynamic analysis, and computational fluid dynamics analysis. The blade failure is determined to be a consequence of an inlet guide vane failure, and the root cause of the failure is determined to be resonant excitation of the inlet guide vanes due to the vortex shedding frequency of the inlet guide vanes. Emphasis is placed on the reasoning process behind each step of the failure analysis and the justification for conclusions regarding the root cause of the failure. Specific recommendations for preventing future failures of the same type are also presented.
机译：本文介绍了基于第1部分方法的根本原因故障分析案例研究。研究了轴流式压缩机叶片的故障，并详细介绍了故障分析涉及的步骤。故障分析的范围包括许多通常用于调查机械故障的分析，包括现场访问，冶金分析，动态分析和计算流体动力学分析。确定叶片故障是由于入口导向叶片故障造成的，并且确定故障的根本原因是由于入口导向叶片的涡旋脱落频率引起的入口导向叶片的共振激励。重点放在故障分析的每个步骤后面的推理过程以及有关故障根本原因的结论依据。还提出了防止将来发生相同类型故障的具体建议。

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