Communications - Scientific Letters of the University of Zilina 2016, 18(4):103-111 | DOI: 10.26552/com.C.2016.4.103-111

Mathematical Modelling of Fibre Winding Process for Composite Frames

Michal Petru1, Jaroslav Mlynek2, Tomas Martinec1, Jozef Broncek3
1 The Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Czech Republic
2 Department of Mathematics and Didactics of Mathematics, Faculty of Science, Humanities and Education, Technical University of Liberec, Czech Republic
3 Department of Design and Mechanical Elements, Faculty of Mechanical Engineering, University of Zilina, Slovakia

This article describes the authors´ own mathematical modelling designed for the production process of a new type of low-weight composite frame. The used real technology is based on the winding of carbon or glass filament rovings around a polyurethane core which is a frame with a circular cross section (this type of composites is used, for example, to reinforce the doors and windows of airplanes). The core is attached to the end-effector of the robot (robot-end-effector) and successively passes through the fibre-processing head during the winding process. Quality production depends primarily on the correct winding of fibres around the polyurethane core. It is especially needed to ensure the correct angles of the fibre winding around the polyurethane core and the homogeneity of individual winding layers. The numerical model described in Euclidean space E3 of the manufacturing process is used when the fibre-processing frame is passing through the fibre-processing head. We use the described mathematical model and matrix calculus to enumerate the trajectory of the robot-end-effector to determine the desired passage of the core through the fibre-processing head. The calculated sequence of "tool-centre-point" values of the robot allows us to define the desired trajectory of the robot-end-effector and, thereby, the passage of the frame through the fibre-processing head. The calculation of the trajectory was programmed in the Delphi development environment. A practical example is analysed in the article.

Keywords: mathematical modelling; composite frame; winding fibre processing; robot technology

Published: November 30, 2016  Show citation

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Petru, M., Mlynek, J., Martinec, T., & Broncek, J. (2016). Mathematical Modelling of Fibre Winding Process for Composite Frames. Communications - Scientific Letters of the University of Zilina, 18(4), 103-111. doi: 10.26552/com.C.2016.4.103-111
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