| Title |
The Characteristic Analysis for Thrust and Normal Force of Linear Pulse Motor |
| Abstract |
Linear Pulse Motors (LPM) are used a field where smooth linear motion is required, and it"s position accuracy higher than that of a lead According to the advantage such as simplicity of mechanical frame, high reliability, precise open-loop operation low inertia etc. LPM is applied largely where it have made motor of this kind more and more attractive in many application areas such as factory automation and high speed positioning. This paper is researched to analyze for force characteristics of hybrid LPM with high accuracy and repeatability. Both the thrust and normal force are very sensitive to the airgap and tooth pitches of the forcer and platen. Here, the thrust shows a high control while the normal force is much higher than the thrust. For magnetic circuits of hybrid LPM is the complicated structure, the finite element method (FEM) is employed with suitable method for calculating the force. Therefore, both the virtual work principle and maxwell stress tensor have been used. |