Filament Winding of Conical Structures with Elliptic Cross Section

Abstract

This paper presents a software, ELLIPSE-COMP-2009, for the simulation and the control of ellipsoidal mandrels winding in the manufacturing of composite structures. The winding machine is controlled by a numerical-control unit. The deposit point of the fibre on the mandrel follows the geodesic lines to optimise the consumption of the ribbon and avoid fibres sliding over the mandrel.In this paper, we determine the geodesic line over ellipsoidal structures, subsequently the coordinates of the feed-eye in the space; leading to stabilise the fibre setting by synchronizing the mandrel rotation and the feed-eye displacement.The case in which the cross section of the ellipsoidal structure remain constant has been studied and published as ELLIPS-COMP-2002 /!/, case of winding right beams with elliptical cross section. ELLIPSE-COMP-2009 presented on this paper is an extension of ELLIPSE-COMP-2002 to the winding of conical beam with elliptical cross section.

Non-Geodesic Trajectories for Filament Wound Composite Truncated Conical Domes

“…Filament wound conical shells are being widely used in the aerospace and commercial industries, such as pressure vessels, pipes, nozzles, and lattice structures. In the past decades, the design and analysis for filament-wound conical shells have been developed in a variety of facets [1][2][3]. However, previous work concentrated mostly on the use of geodesics as winding trajectories; the design freedom of this class of fiber patterns is severely limited because once the initial conditions of fiber position and orientation have been fixed, the entire fiber trajectory and winding parameters are solely determined [4,5].…”