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Types of general vibration regarding the sources of its origin:

 transporting (during the motion of the machines);
 transporting and technological (during the work of the machines which
execute technological operations in the stationary position or move on the specially
prepared surfaces);
 technological (during the work of the stationary machines or transmitted
to the working places that do not have any sources of vibration).

Vibration is characterized by parameters that are given in Table 12.1.

a)

b)

Figure 12.1 – Directions of coordinate axes under the action of general (a) and
local (b) vibrations.

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