Circular pipe filament winding process simulation method, system, medium, and product

Patent metadata

Field	Value
Publication number	US-12450404-B1
Application number	US-202519075826-A
Country	US
Kind code	B1
Filing date	Mar 11, 2025
Priority date	Apr 10, 2024
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A circular pipe filament winding process simulation method includes: according to the geometric parameter of the circular pipe and the current pseudo dome parameter, constructing the stepped shaft circular pipe model; according to the winding parameter, calculating the initial center rotation angle for filament winding; according to the initial center rotation angle and the given deviation rotation angle, calculating the theoretical center rotation angle; according to the theoretical center rotation angle, determining the theoretical slip coefficient within the given slip coefficient range; determining whether the slip coefficient of the end point of the current stepped shaft circular pipe model is less than the current theoretical slip coefficient; if so, performing the simulation of the circular pipe filament winding process, and obtaining the trajectory according to the current theoretical slip coefficient; and if not, modifying the current pseudo dome parameter, and returning steps of constructing the stepped shaft circular pipe model.

First claim

What is claimed is:

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.

2. The circular pipe filament winding process simulation method according to claim 1 , wherein according to the initial center rotation angle and the given deviation rotation angle, calculating, by the computer, the theoretical center rotation angle satisfying the preset uniform winding condition, comprising:
according to the initial center rotation angle and the given deviation rotation angle, calculating the theoretical center rotation angle satisfying the preset uniform winding condition by using a continued fraction theory.

3. The circular pipe filament winding process simulation method according to claim 1 , wherein according to the theoretical center rotation angle, determining, by the computer, the theoretical slip coefficient within a given slip coefficient range, comprising:
according to the theoretical center rotation angle, determining the theoretical slip coefficient within the given slip coefficient range by using a dichotomy method.

4. A computer system, comprising a memory, a processor, and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to implement the steps of the circular pipe filament winding process simulation method according to claim 1 .

5. A non-transitory computer readable storage medium, a computer program is stored on the non-transitory computer readable storage medium, when the computer program is executed by a processor, the steps of the circular pipe filament winding process simulation method according to claim 1 .

Assignees

• Univ Hefei Technology

Inventors

• Fu Jianhui
• Zu Lei
• Zhang Guiming
• Zhang Qian
• Pan Helin
• Wu Qiaoguo
• Zhou Lichuan
• Li Debao

Classifications

• G06F30/17

  Mechanical parametric or variational design · CPC title

• G06F30/00

  Computer-aided design [CAD] · CPC title

• G06F30/20

  Design optimisation, verification or simulation (optimisation, verification or simulation of circuit designs G06F30/30) · CPC title

• G06F30/12

  characterised by design entry means specially adapted for CAD, e.g. graphical user interfaces [GUI] specially adapted for CAD · CPC title

• G06F2113/10

  Additive manufacturing, e.g. three-dimensional [3D] printing · CPC title