This paper deals with a magneto dynamic modeling approach developed for a linear switched reluctance actuator. This approach is based on the exploitation of the magnetostatic finite elements model built for the studied actuator. The static characteristics of flux and forces, determined by the finite element simulations, for different positions of the moving part and different supply current levels, are grouped into response surfaces. These surfaces are used, under low operating speed conditions, for the magnetodynamic model elaboration and the actuator dynamic performances determination.