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首页> 外文会议>Turbomachinery Symposium >A REVIEW OF AERODYNAMICALLY INDUCED FORCES ACTING ON CENTRIFUGAL COMPRESSORS, AND RESULTING VIBRATION CHARACTERISTICS OF ROTORS
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A REVIEW OF AERODYNAMICALLY INDUCED FORCES ACTING ON CENTRIFUGAL COMPRESSORS, AND RESULTING VIBRATION CHARACTERISTICS OF ROTORS

机译：对用于离心式压缩机的空气动力学诱导力的综述，从而产生转子的振动特性

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摘要

There are several sources of non-synchronous forced vibration of centrifugal compressor rotors. Many of them are aerodynamic phenomena, created within the gas path of the compressor. Phenomena such as impeller stall, diffuser stall (with and without vanes), and flow instabilities caused by impeller to diffuser misalignment, are all characteristic flow disturbances that can cause forced vibration. In fact, often the only indications of these phenomena are found in the resulting rotor vibration signals. Several phenomena that can cause non-synchronous vibration are reviewed, and for each one, background information, as well as detailed descriptions of the flow field, or other source of the excitation, is provided. This includes the use of CFD analytical results to describe the flow where applicable. The review also includes, when available, dynamic pressure transducer test data that can be used to verify the presence of the phenomena, and rotor vibration data indicating the presence of such phenomena. This includes test data of actual machines, indicating characteristics such as frequency and amplitude.
机译：离心式压缩机转子的非同步强制振动有几个源。其中许多是空气动力学现象，在压缩机的气体路径内产生。叶轮失速，漫射器摊位（带有叶片）等现象，以及由叶轮引起的叶轮引起的流动不置于扩散器未对准，是可能导致强制振动的特征流障碍。事实上，通常在所得到的转子振动信号中发现这些现象的唯一指示。提供了几种可以造成非同步振动的现象，并且为每个现象提供背景信息，以及流场的详细描述，或者激励的其他源。这包括使用CFD分析结果来描述适用的流程。审查还包括当可用时，动态压力传感器测试数据可用于验证现象的存在，以及指示存在这种现象的转子振动数据。这包括实际机器的测试数据，指示频率和幅度等特性。

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