Real-Time Adaptive Trajectory Control for Automated Fibre Placement Using ROS-Based Defect MitigationPresentation: Session: Session 10: Defect Prediction and Mitigation in AFP Room: Main Session start: 13:10 Thu 16 Apr 2026 Stig McArthur Stig.McArthur@strath.ac.uk Affifliation: University of Strathclyde Catherine Yokan catherine.yokan@strath.ac.uk Affifliation: University of Strathclyde Jorn Mehnen Jorn.Mehnen@strath.ac.uk Affifliation: University of Strathclyde Topics: - Virtual manufacturing and digital technologies (All Topics), - Automated composite manufacturing equipment (All Topics), - Inspection and quality assurance (All Topics) Abstract: Real-time adaptive trajectory control for Automated Fibre Placement (AFP) systems using industrial middleware to mitigate common placement defects during deposition is demonstrated as a proof-of-concept. By integrating the Robot Operating System (ROS) with the Interfacing Toolkit for Robotic Arms (ITRA), our system achieves 12ms real-time control of a 12-degree-of-freedom industrial robot, enabling on-the-fly corrections to the deposition trajectories executed on the robot based on laser profilometry feedback and controlled using standard computing hardware. The system utilised an automated defect detection system capable of detecting common placement-induced defects and applies in-process corrections to the pre-programmed trajectories to mitigate or remove the defects. The architecture is designed with future capabilities in mind, enabling on-the-fly trajectory generation that would dramatically reduce pre-production programming requirements. Real-time deposition trials on 2-dimensional layup paths validate the approach, demonstrating how middleware-enabled flexibility bridges the gap between programmed deposition plans and manufacturing reality. This work establishes a practical framework for intelligent, self-correcting AFP systems that respond to material deposition irregularities in real-time rather than after-the-fact. |