2 research outputs found
Automation of optimization synthesis for modular technological equipment
Technological equipment design based on functionally modular methods is widely used in various
technical fields. The designed object can be a technological machine, a production line, or a manufacturing complex.
Special attention is paid to the optimization of its structure. The sequence of performing all stages of the optimization
synthesis problem is presented in the article. To find a solution to this task, the developer should apply the complete or
directed search of acceptable structure options and determine the best one using some optimization criteria to evaluate
their quality. It can be simple enough if the designed technical system structure consists of no more than several
elements. For example, if the number of alternative elements options is several dozen, it takes much time to accomplish
the search correctly. Thus, the greater the number of components considered, the more difficult it is to do all the
necessary calculations manually. In this case, machine resources should be involved. This scientific work aims to
identify procedures of optimization synthesis that can be automated. Also, appropriate software has to be developed.
Our computer program is based on the algorithm of a complete search of all options of the technical system structure.
It can process an extensive array of input data and produce all possible and logically permissible results in the form the
designer can analyze using the Pareto method to choose the best one. This software can be used for any technical system
with a modular structure
Impact of technological system’s characteristics on the machining accuracy of bearing rings
The article shows the influence of the technological system of an automated lathe, in particular cam
chucks, on the accuracy of machining bearing rings for production conditions. The value of the deformation during
machining, i.e., the non-circularity of the ring of a single row tapered roller bearing 32017X in outer diameter, was
investigated. For the study, samples were selected that were processed under the same conditions directly in the
production unit of PJSC “SKF Ukraine” without interference with the technological process. The use of replaceable
floating cams in the chuck design was proposed to increase the accuracy and productivity of machining. Experimental
studies have shown that the machined surface’s ovality depends on the chuck cams’ clamping force. The
effectiveness of computer processing of statistical data on the accuracy control of engineering products was shown.
Implementing machining accuracy control in production using the Minitab computer program was presented. It was
proven that the quality of products is formed under the influence of the use of modern computer technologies at all
stages of manufacturing and control of parts, which ensures research in a wide range of changes in technological
parameters and comparison of individual studies with actual machining conditions on the machine, with the results of
a sufficient level of reliability