CAD/CAM/CAE system for manufacturing structures from fibrous composite materials using 3D-printing


DOI: 10.34759/trd-2022-126-21

Аuthors

Deniskina G. Y.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

e-mail: dega17@yandex.ru

Abstract

The problem of development and implementation of a CAD/CAM/CAE system for manufacturing structures from fibrous composite materials using 3D printing is considered. The general configuration of the system and the assignment of its functional modules are described. The advantages of the mathematical support and software developed for the system for creating digital twins, which allow generating control programs and conducting virtual modeling of a 3D printing process to be used in the manufacture of products of complex geometric shapes, as well as developing rational schemes for the reinforcement of printed composite structures and finding optimal printing modes, are shown.

CAD/CAE system is focused on modeling, visualization of the placement of fibers in the printing area, finding the optimal printing scheme based on the requirements conditioned by the product operating conditions. In this connection, it must meet the following requirements:

  • availability of the option to uniformly describe flat print areas,
  • availability of tools for setting various printing schemes,
  • availability of tools for calculating the strength of a structure in compliance with a certain printing scheme,
  • availability of tools for selecting the optimal printing scheme conditioned by the product operating conditions from various printing schemes.

The main principles of development of a CAD/CAM/CAE system for manufacturing functional structures from fibrous composite materials using 3D printing are considered. The task of modeling and visualization of the 3D printing process is formulated. The main specifications of the developed CAD/CAM/CAE system associated with the possibility to set the structure of a facility with its subsequent adjustment and smoothing. triangulation of the print area and modeling of placement of fibers using analytical functions during the printing process are determined. Mathematical tools for solving equations characterizing mechanical properties of composite materials based on wavelet analysis methods, as well as for calculating the optimal directions for placing fibers of composite materials are described.

Keywords:

CAD/CAM/CAE systems, composite materials, 3D printing, digital twins, wavelet analysis

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