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2. Tools
2.1 Vibration level monitoring of indicators (overall levels)
Provided the measures have been taken:
or on different frequency bands (for machines running from 1,500 to 3,000 rpm, a low-frequency band from 10 to 120 Hz, a medium-frequency band from 100 to 1,000 Hz and a high-frequency band above 1,000 Hz are generally used);
or according to different indicators that are themselves more sensitive to different frequencies. This is the case with many devices that focus solely on the standardized 10/1000 Hz range, enabling the detection of unbalance or looseness, and others that focus on sensor resonance, enabling the detection of bearing spalling,
By taking a comparative...
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Standards and norms
- Mechanical vibration — Machine vibration measurement and evaluation — Part 1: General guidelines. - ISO 20816-1 - 2016
- Mechanical vibration — Machine vibration measurement and evaluation — Part 2: Gas turbines, steam turbines and fluid-film bearing alternators above 40 MW for land-based applications, with rated operating speeds of 1,500 r/min, 1,800 r/min, 3,000 r/min and 3,600 r/min. - ISO 20816-2 - 2017
- Mechanical...
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