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М.Е. Лиморенко, Е.О. Подчасов, А.Д. Терентьева
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Инженерный журнал: наука и инновации
# 6·2017
Increase in accuracy of automatic control of vital parts
© M.E. Limorenko, E.O. Podchasov, A.D. Terenteva
Bauman Moscow State Technical University, Moscow, 105005, Russia
Increasing the requirements for the accuracy of machine part surfaces is one of the conse-
quences of the development of modern machine building. It leads to complication of interme-
diate control and acceptance testing, which will reduce the rejection rate. However, increas-
ing the requirements for accuracy can significantly complicate control technology and the
requirements for measuring technology. To solve this problem, it is possible to apply multiple
measurements with the obligatory condition of optimizing their quantity. The application of
the methodology for determining the minimum required number of measurements based on
the Student's coefficient, described in the classical literature, is associated with uncertainty.
We suggest, in order to overcome these difficulties, applying the method of sequential analysis
with the introduction of dimensionless criteria for stabilizing the process. The specified meth-
od allows us to reveal the minimum necessary quantity of measurements depending on char-
acteristics of technological process.
Keywords:
mechanical engineering, vital parts, accuracy of manufacture and measure-
ment, control, automation, sequential analysis
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