PROBABILISTIC MODELING IN STUDIES OF THE ACCURACY THE MANUFACTURE OF ENGINEERING PRODUCTS

E Z Batmanov,R V Guseynov

doi:10.21822/2073-6185-2016-40-1-46-51

Abstract

Methodological aspects of the theory of precision Assembly operations in the manufacture of engineering products. Substantiated the advantage of probabilistic modeling in engineering. Noted that the primary error of engineering products change over time because of wear and tear, as a result of what is happening in the material details of the physical-mechanical processes, and experimental study of the marked character of changes in parameters of the parts does not give the exhaustive information on which to judge those or other reliable regularities of the phenomena. It is noted that the experimental study is very important, as allows to receive multiple implementations, which can be seen on the character of changes of primary errors in particular cases. The features of the use of probabilistic modeling in solving problems of the nonlinear theory of accuracy.

Highlights

Methodological aspects of the theory of precision Assembly operations in the manufacture of engineering products
that the primary error of engineering products change over time
as a result of what is happening in the material details of the physical-mechanical processes

Summary

Introduction

Methodological aspects of the theory of precision Assembly operations in the manufacture of engineering products. При случайном характере исходных погрешностей задача моделирования заключается в том, чтобы представить первичные ошибки случайными числами, подчиняющихся законам распределения первичных ошибок меняющихся в границах, соответствующих допускам. При вероятностном моделировании в расчетах точности применяются два метода: метод статистических испытаний (метод Монте-Карло) и метод древа логических возможностей – метод теории графов. Влияние которых не является определяющим для оценки точности, приводит к тому, что математические модели становятся громоздкими, труднореализуемыми, а точность решения задачи при этом практически не повышается.

Results

Conclusion