
اسم المؤلف
Jason Mais
التاريخ
25 مايو 2022
المشاهدات
63
التقييم
التحميل
Spectrum Analysis – The key features of analyzing spectra
By Jason Mais
SKF USA Inc.
Contents
- Introduction
- Common steps in a vibration monitoring program 4
- Step 1 .
3.1. Collect useful information 4
3.2. Identify components of the machine that could cause vibration
3.3. Identify the running speed . 4
3.4. Other key considerations . 5
3.5. Identify the type of measurement that produced the
FFT spectrum . 5 - Step 2 .
4.1. Analyze spectrum 5
4.2. Common components of vibration spectrums 5
4.3. Identify and verify suspected fault frequencies . 6
4.4. Determine fault severity . 6 - Misalignment . 7
- Unbalance 11
- Mechanical looseness 14
- Bent shaft
- Rolling element bearing defects . 16
- Gears
- Blades and vanes 25
- Electrical problems 27
- Step 3 .
13.1. Multi-parameter monitoring 28 - Conclusions 29
- Further reading . 29
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