ISO 10814 Mechanical vibration – Susceptibility and sensitivity of machines to unbalance

ISO 10814

Mechanical vibration – Susceptibility and sensitivity of machines to unbalance (1996 edition)

This International Standard defines methods for determining machine vibration sensitivity to unbalance and provides evaluation guidelines as a function of the proximity of relevant resonant speeds to the service speed.

It includes a classification of certain machines in groups associated with the susceptibility to a change in unbalance.

This International Standard also makes recommendations on how to apply the numerical sensitivity values in some particular cases.

Machines are classified into three types in clause 4, and sensitivity values assigned to different groups of machines are shown in clause 5. The sensitivity values should be used on simple machine systems, preferably with rotors having only one resonant speed over the entire service speed range. They may also be used for machines that have more resonant speeds in the service speed range if the resonant speeds are widely separated (e.g. more than 20 % spaced).

The proposed sensitivity values are not intended to serve as acceptance specifications for any machine group but rather to give indications of how to avoid gross deficiencies as well as exaggerated or unattainable requirements. They may also serve as a basis for more involved investigations; for example, when in special cases a more exact determination of the required sensitivity is necessary. If due regard is paid to the proposed values, satisfactory running conditions can be expected in most cases.

The consideration of these values alone does not guarantee that a given magnitude of vibration in service is not exceeded. Many other sources of vibration can occur which are not the subject of this International Standard.

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