Fault Feature Extraction Method of Rolling Bearing Based on IAFD and TKEO

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Kai Guo, Jun Ma, Xin Xiong, Yuming Hu, Xiang Li
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引用次数: 0

Abstract

The study of bearing fault feature extraction using adaptive Fourier decomposition (AFD) holds significant practical importance. However, AFD is constrained by its reliance on prior knowledge for determining decomposition levels, which can result in either underdecomposition or overdecomposition based on a single indicator. Consequently, an improved adaptive Fourier decomposition (IAFD) is proposed. First, a combined weight index called SP is constructed, and the whale optimization algorithm is employed to optimize the SP weight parameter. Second, the IAFD decomposition levels can be adaptively determined using the optimized SP. Finally, a feature extraction method-based IAFD and Teager–Kaiser energy operator is applied in rolling bearing fault diagnosis. Case studies on the Case Western Reserve University and self-made KUST-SY datasets validate the effectiveness of the proposed method.
基于 IAFD 和 TKEO 的滚动轴承故障特征提取方法
利用自适应傅立叶分解(AFD)进行轴承故障特征提取的研究具有重要的现实意义。然而,自适应傅立叶分解受限于其对确定分解级别的先验知识的依赖,这可能导致基于单一指标的分解不足或分解过度。因此,我们提出了一种改进的自适应傅立叶分解(IAFD)。首先,构建一个称为 SP 的组合权重指标,并采用鲸鱼优化算法来优化 SP 权重参数。其次,利用优化后的 SP 自适应地确定 IAFD 分解级别。最后,将基于 IAFD 和 Teager-Kaiser 能量算子的特征提取方法应用于滚动轴承故障诊断。在凯斯西储大学和自制的 KUST-SY 数据集上进行的案例研究验证了所提方法的有效性。
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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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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