关键词: 运动性能, 数字孪生, 元动作, 传感器, 多维虚拟技术

Abstract: Aiming at the difficulty to accurately monitor and control the kinematic property of complex mechanical products in the production process,the method of motion regulation based on Digital Twin (DT) was proposed.Based on the theory of meta-action,a six-dimensional structure model of motion research for mechanical products based on DT was established.Then the operation mode of DT-driven motion performance management was mapped out.According to the characteristics of meta-action chain,the data monitoring technology based on meta-action layer was implemented to solve the problem of sensor selection and layout.By utilizing the powerful ability of virtual-real interaction and fusion of multi-dimensional simulation software and DT technology,the specific technical methods of modeling,simulation and motion optimization were formulated.A six-degree-of-freedom industrial robot was taken as an example to verify the rationality and practicability of the method.The results showed that the DT-driven motion performance control mechanism had good adaptability and robustness,and realized the fine management of the robot's motion.