• Proposes a human-centric product conceptual design model that integrates user feedback in real-time to overcome the hysteresis of traditional linear design processes.
• The model employs a feedback-based co-evolution method, enabling iterative convergence of design solutions through problem-driven cycles.
• Demonstrated effectiveness via a case study on a natural gas well foaming agent automatic filling device, showing improved iterative efficiency and solution quality.
• Aligns with Industry 5.0 principles, emphasizing human-centricity and collaborative designer-user interaction in smart manufacturing.