US 12,450,404 B1
Circular pipe filament winding process simulation method, system, medium, and product
Jianhui Fu, Hefei (CN); Lei Zu, Hefei (CN); Guiming Zhang, Hefei (CN); Qian Zhang, Hefei (CN); Helin Pan, Hefei (CN); Qiaoguo Wu, Hefei (CN); Lichuan Zhou, Hefei (CN); and Debao Li, Hefei (CN)
Assigned to Hefei University of Technology, Hefei (CN)
Filed by Hefei University of Technology, Hefei (CN)
Filed on Mar. 11, 2025, as Appl. No. 19/075,826.
Claims priority of application No. 202410429795.1 (CN), filed on Apr. 10, 2024.
Int. Cl. G06F 30/18 (2020.01); G06F 30/12 (2020.01); G06F 113/10 (2020.01); G06F 113/14 (2020.01)
CPC G06F 30/18 (2020.01) [G06F 30/12 (2020.01); G06F 2113/10 (2020.01); G06F 2113/14 (2020.01)] 5 Claims
OG exemplary drawing
 
1. A circular pipe filament winding process simulation method, comprising:
according to a geometric parameter of a circular pipe to be wound and a current pseudo dome parameter of a pseudo dome used for the circular pipe, constructing, by a computer and using an OpenGL drawing function, a current stepped shaft circular pipe model;
according to a winding parameter, calculating, by the computer, an initial center rotation angle of the current stepped shaft circular pipe model for filament winding; wherein the winding parameter comprises a roving width, a slip coefficient, and a dwell angle of a roving for filament winding the circular pipe;
according to the initial center rotation angle and a given deviation rotation angle, calculating, by the computer, a theoretical center rotation angle satisfying a preset uniform winding condition;
according to the theoretical center rotation angle, determining, by the computer, a theoretical slip coefficient within a given slip coefficient range;
determining, by the computer, whether a slip coefficient of an end point of the current stepped shaft circular pipe model is less than a current theoretical slip coefficient;
if the slip coefficient of the end point of the current stepped shaft circular pipe model is less than the current theoretical slip coefficient, performing, by the computer, a simulation of a circular pipe filament winding process according to the current stepped shaft circular pipe model and a pattern trajectory to obtain an optimized winding scheme, and winding the circular pipe according to the optimized winding scheme by using a computer-controlled automated filament winding machine, the pattern trajectory is obtained according to the current theoretical slip coefficient;
if the slip coefficient of the end point of the current stepped shaft circular pipe model is not less than the current theoretical slip coefficient, modifying, by the computer, the current pseudo dome parameter, and returning steps of constructing the stepped shaft circular pipe model according to the geometric parameter of the circular pipe and the current pseudo dome parameter until the slip coefficient of the end point of the current stepped shaft circular pipe model is less than a current theoretical slip coefficient;
performing, by the computer, the simulation of the circular pipe filament winding process according to the current stepped shaft circular pipe model and the pattern trajectory, comprising:
calculating a unit normal vector and a unit tangent vector of each point on the pattern trajectory;
according to the unit normal vector and unit tangent vector of each point, calculating a unit offset vector of each point;
according to the roving width and the unit offset vector of each point on the pattern trajectory, performing the simulation of the circular pipe filament winding process.