Monitoring of condition of machines by
recurring measurements of vibration is one of the most
effective and reliable method of early prediction of
possible failures/prevention of unexpected breakdowns.
It allows to detect early warning signs
and helps to stop unscheduled outages, optimize machine performance, and reduce repair time and maintenance costs.
The diagram below shows a typical example of the warning signs.
The diagram above shows that vibrations are the first warning sign that a
machine is prone to failure. This warning sign can provide 3 months of lead time
before the actual failure date. Monitoring and analyses of vibration allow to
predict the failure early and schedule proper maintenance.
The machine condition monitoring by measurements and analyses of vibration is applicable to a very wide range
of industrial plant, including machine tools, steel, board and paper mills, chemical plants, hospitals, cement ovens,
compressors, diesel engines, air-conditioners, ventilation fans and power stations.
Depending on a particular situation, Pollution Control Consultancy and Design (PCCD)
provides measurements and analyses of vibration that allow to assess the condition of machines using
the high quality equipment, viz.
- Brüel & Kjær (B&K) Modular Precision Real-Time Sound and Vibration Analyzers type 2250 and 2270,
with Fast Fourier Transform (FFT) Software BZ7230 (up to 6400 lines of analysis):
- Svantek Four-channel Real-Time Sound and Vibration Analyzers type Svan 958,
in octave and ⅓-octave band spectra, and in narrow-band (FFT) spectra with up to 1920 lines of analysis:
- Brüel & Kjær (B&K) Modular Precision Real-Time Sound and Vibration Analyzers type 2260 Investigator,
with 3-Channel Vibration Front-end type 1700 and Fast Fourier Transform (FFT) Software BZ7208
(narrow-band spectrum from 0.1 Hz, with resolution better than 0.5 Hz):
Brüel & Kjær (B&K) Integrating Vibration Meters