Spectrum Analysis – The key features of analyzing spectra

اسم المؤلف

Jason Mais

التاريخ

25 مايو 2022

التصنيف

هندسة الإنتاج والتصميم الميكانيكى

المشاهدات

63

التقييم

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Spectrum Analysis – The key features of analyzing spectra
By Jason Mais
SKF USA Inc.
Contents

1. Introduction
2. Common steps in a vibration monitoring program 4
3. 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
4. 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
5. Misalignment . 7
6. Unbalance 11
7. Mechanical looseness 14
8. Bent shaft
9. Rolling element bearing defects . 16
10. Gears
11. Blades and vanes 25
12. Electrical problems 27
13. Step 3 .
    13.1. Multi-parameter monitoring 28
14. Conclusions 29
15. Further reading . 29

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