基于小波变换和小波探测的转子部件同步响应分析

IF 1.4 4区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Engineering for Gas Turbines and Power-transactions of The Asme Pub Date : 2023-10-10 DOI:10.1115/1.4063712

Luigi Carassale

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引用次数: 0

摘要

转子部件的同步响应测量可以用两个目标进行分析。一方面，响应幅值的估计是低周疲劳安全裕度评定等结构计算所必需的。另一方面，它用于系统识别的目的，特别感兴趣的阻尼。利用基于连续小波变换的时频分析可以有效而准确地完成这两项任务。限制该工具广泛使用的一个主要问题是缺乏指导分析人员正确选择小波变换中涉及的参数的标准。本文从理论和实践的角度对这一问题进行了探讨，并为共振交叉时的响应分析提供了一个有效的判据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of the Synchronous Response of Rotor Components by Wavelet Transform and Wavelet Probing

Abstract The measured synchronous response of rotor components may be analyzed with two objectives. On the one hand, the estimation of the response amplitude is necessary for structural calculations such as the assessment of the low-cycle fatigue safety margin. On the other hand, it is used for system identification purpose with particular interest for damping. Both these tasks can be carried out efficiently and accurately using the time-frequency analysis based on the continuous wavelet transform. A major issue that limits a wide use of this tool is the lack of criteria to guide the analysist to a proper choice of the parameters involved in the wavelet transform. This paper discusses this problem from a theoretical and practical point of view and provides a criterion valid for the analysis of the response during resonance crossings.

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来源期刊

Journal of Engineering for Gas Turbines and Power-transactions of The Asme 工程技术-工程：机械

CiteScore

3.80

自引率

20.00%

发文量

292

审稿时长

2.0 months

期刊介绍： The ASME Journal of Engineering for Gas Turbines and Power publishes archival-quality papers in the areas of gas and steam turbine technology, nuclear engineering, internal combustion engines, and fossil power generation. It covers a broad spectrum of practical topics of interest to industry. Subject areas covered include: thermodynamics; fluid mechanics; heat transfer; and modeling; propulsion and power generation components and systems; combustion, fuels, and emissions; nuclear reactor systems and components; thermal hydraulics; heat exchangers; nuclear fuel technology and waste management; I. C. engines for marine, rail, and power generation; steam and hydro power generation; advanced cycles for fossil energy generation; pollution control and environmental effects.