An intermediate finite element tool for static analysis and design of linear actuators

Abstract

When optimizing designs of electromechanical actuators the fast development tools that enable one to calculate the magnetic field distribution are of high importance. They should provide reliable information about the performance indexes of the actuators. The created intermediate finite element tool is selected as a promising method anticipating short simulation time and adequate accuracy. The core of the approach is the magnetostatic finite-element method applied only to the simple-meshed air gap of the actuator with the Dirichlet, Neumann and open boundary conditions. The formulas for the elemental and boundary coefficients matrixes are stated; numerical results are presented and compared with high precision FE and experimental results.