Research on high precision real-time digital twin model

With the development of digital twin technology, high-precision digital twin technology is becoming increasingly urgent in production practice. This article proposes a high-precision digital twin model construction method for electromechanical actuators based on practical production needs. Firstly, a twin mechanism model was constructed from the aspects of geometry, physics, behavior, and rules. The time-varying transfer function of the electromechanical actuator was established, and the parameters were identified and updated through particle swarm optimization to achieve digital mapping. Secondly, a twin data model was constructed, taking historical data of relevant features as input, and a BP neural network-based input voltage prediction model was constructed. Finally, the accuracy and feasibility of the twin mechanism model were verified through simulation, and the introduced digital twin technology provides a new method for real-time interaction and adjustment between the theoretical model of electromechanical actuators and actual data.