کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
559146 1451861 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Distributed bearing fault diagnosis based on vibration analysis
ترجمه فارسی عنوان
تشخیص خطا توزیع شده بر اساس تجزیه و تحلیل ارتعاش
کلمات کلیدی
ارتعاشات، گسل های تحویل محلی گسل های تحمل توزیع شده، تجزیه و تحلیل پاکت
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی


• Distributed faults can be distinguished from localized via vibration analysis.
• Under distributed fault sidebands of BPFO/I are multiples of FTF.
• Randomness of ball diameter is the cause of observed modulations.
• Distributed and localized faults differ in the presence of these modulations.

Distributed bearing faults appear under various circumstances, for example due to electroerosion or the progression of localized faults. Bearings with distributed faults tend to generate more complex vibration patterns than those with localized faults. Despite the frequent occurrence of such faults, their diagnosis has attracted limited attention. This paper examines a method for the diagnosis of distributed bearing faults employing vibration analysis. The vibrational patterns generated are modeled by incorporating the geometrical imperfections of the bearing components. Comparing envelope spectra of vibration signals shows that one can distinguish between localized and distributed faults. Furthermore, a diagnostic procedure for the detection of distributed faults is proposed. This is evaluated on several bearings with naturally born distributed faults, which are compared with fault-free bearings and bearings with localized faults. It is shown experimentally that features extracted from vibrations in fault-free, localized and distributed fault conditions form clearly separable clusters, thus enabling diagnosis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanical Systems and Signal Processing - Volumes 66–67, January 2016, Pages 521–532
نویسندگان
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