Numerical Analysis Of Electromagneto-Mechanical Coupling Using Lagrangian Approach And Adaptive Time Stepping Method

Electromagneto-mechanical coupling effect associated with vibration induced eddy currents plays an important role in the evaluation and design of many magnetic devices, such as a tokamak. In this paper, a updated Lagrangian formulation for eddy current analysis of deformable bodies was presented through transformation from reference configuration to current configuration. A coupled analysis method based on Lagrangian meshes and Ar method was developed. A corresponding code was developed and verified by simulating Team Problem 16. The numerical method was further updated by introducing an adaptive time stepping procedure to improve its simulation efficiency.