Vibration criteria
A detailed consideration of vibration criteria for sensitive
Detailed consideration of vibration criteria for sensitive
equipment is beyond the scope of the current paper.
Equipment is beyond the scope of this paper.
It is,
it is,
however, important to know how these criteria are specified
however, important to know how these criteria are specified
when considering appropriate vibration prediction techniques.
When considering appropriate vibration prediction techniques.
The most widely used vibration criteria for sensitive equipment
The most widely used vibration criteria for sensitive equipment
are those developed by Colin Gordon9 in the 1980s for a wide
are those developed by Colin Gordon9 in the 1980s for a wide
range of tools and instruments used by the microelectronics,
range of tools and instruments used by the microelectronics,
medical and biopharmaceutical industries, and the most widely used vibration criteria for sensitive equipment
.
medical and biopharmaceutical industries.
Medical and biopharmaceutical industries.
They are commonly
referred to as generic vibration criteria, or VCs.
The criteria
criteria
take the form of a set of one-third octave band velocity
take the form of a set of 1/3 octave band velocity
spectra, labelled vibration criterion curves VC-A through VC-E.
Spectra, labelled vibration criterion curves VC-A through VC E.
These are shown in Fig. 2, together with the other
This is the set of one-third octave band velocity
in the form of a set of one-third octave band velocity. These are shown in Fig. 2, together with the other
recommended response limits from BS 6472.10
Recommended response limits from BS 6472.10
In the context of the present paper it is important to note that that
In the context of the present paper it is important to note
the vibration criteria are speci
Vibration criteria are that