Modeling method for pose error of machine tool linear feed system based on the principle of minimum potential energy

In the present research, a method to model pose error of machine tool feed system is proposed based on principle minimum potential energy. Firstly, force-moment equilibrium equation established by mechanical analysis. Secondly, force single slider analyzed Hertzian contact theory, and state under action guideway obtained. The elastic displacements in horizontal vertical directions are solved minimal Subsequently, feeding obtained using plane fitting principle. Finally, correctness verified through experiments, experimental results good agreement with theoretical results.