Lymarenko V. The information decision support system to automate the creation of technological processes of machining parts precision equipment

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0419U000534

Applicant for

Specialization

  • 05.13.06 - Інформаційні технології

14-02-2019

Specialized Academic Board

К 73.052.04

Cherkasy State Technological University

Essay

The work is devoted to the solution of the modern problem – development of an information system of decision support for automation of the production of technological processes for the machining of high precision equipment parts, which consists of three subsystems – a information subsystem of the automated creation of the structure of the technological process of machining of parts for precision equipment; information subsystem of optimization the parameters of the TP operations of cutting by considering the accumulation of tool wear and subsystem of control and correction of operating parameters. The task of designing the structure of technological processes is solved by using the decomposition methods, sequential hierarchical synthesis and methods of artificial intelligence – the production rules. The task of determining the optimal control parameters for turning and milling operations is solved in a Зmulti-criterion setting for target functions: the prime cost of operation, specific energy costs per transaction and performance of the operation, considering the wear of the tool that is accumulated in the time, by finding a Pareto-optimal solution with using genetic algorithms and artificial neural networks with considering technical and technological requirements and constraints. For the first time, specialized knowledge bases have been developed on the basis of information technologies, namely methods of artificial intelligence using production logic to determine the structure of the technological process and artificial neural networks. The model of the informational subsystem of the automated creation of an optimal structure of the technological process of machining by cutting high precision equipment parts has been improved. The model of the informational subsystem of parametric optimization for the search of modes of operations of optimal technological processes of cutting is improved. The model of information subsystem of parametric optimization of parameters of operations of cutting operations has received further development. The design of the technological process on the example of the manufacturing of the product «Filter housing» with considering technological constraints is shown, operational requirements, and recommendations are given on optimal control of operations of metals machining in the manufacturing of parts of high precision equipment.

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