A glue dispensing production line multi-dimensional variant control method and system based on fluid-solid coupling

Abstract

This invention discloses a multi-dimensional variation control method and system for dispensing production lines based on fluid-structure interaction. The method includes: constructing a digital twin containing a non-Newtonian fluid process model; calculating the glue flow rate based on the fluid pipeline mapping equation and deriving the speed and acceleration constraints of the robotic arm; generating a dynamic feedforward deceleration curve using the NURBS algorithm combined with fluid constraints; and inputting the additional process time caused by fluid deceleration as a delay parameter into the Petri net correlation matrix to automatically identify and reset the timing of handshake signals that could trigger deadlock. This invention breaks down the barriers between traditional geometric simulation and process control, mapping continuous fluid physical quantities to discrete control constraints. It eliminates the potential for corner glue buildup and logic deadlocks caused by non-Newtonian fluid characteristics before code deployment, significantly reducing the trial-and-error costs of production line changeovers and improving the adaptive control accuracy of the physical production line.

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