Page 35 - 6653
P. 35
Figure 8.1 - Polygon size distribution
Depending on the degree of influence of various factors
acting in the process of processing, the forms of distribution
curves are different. The most common curves are shown in
Fig. 8.2.
a - equal probability; b - Simpson; c - Gauss
Figure 8.2 - Distribution curves
The law of equal probability characterizes such a
distribution of a random variable, by which it with the same
probability can acquire any value within the specified limits.
Such a distribution law is subject, for example, to the total error
of processing, due to a linear change in time of the dominant
factor (wear of a cutting tool, temperature deformation, etc.). In
this case, the effect of the remaining factors is negligible and
slightly affects the size of the detail. In some cases, for
example, due to insufficient rigidity of the VPS system, the size
32
