This paper studies the repulsion occurring between the permanent magnet by the simulation analysis. Nowadays, there are many cases such as magnetic levitation, safety bumper device and so on using the properties of the permanent magnet. As the neodymium magnet of the powerful ferromagnetic material is less expensive by comparing with the strong magnetic force for industrial, medical areas and etc., it can be used at the various applications. The prediction of the magnetic force is becoming increasingly important in order to be used effectively permanent magnet in various fields. Therefore, the results of the magnetostatics by Ansys and the MAXWELL of commercial electromagnetic analysis software are analyzed and compared. Magnetic force is inversely proportional to the distance and power. In this paper, the permanent magnet was simulated and compared by the two permanent magnets of the small sizes with the diameter of 4mm and the length of 8mm. In addition, the forces between the ferromagnetic iron and permanent magnets are simulated.

1. 서 론
 2. 본 론
  2.1 N eodym ium 의 모델링
  2.2 해석 결과
  2.3 ferro- m agnetic 해석 결과
 3. 결 론
 References

• 이주희(Department of Mechanical Engineering of Yeongnam University) | Ju-H ee Lee
• 이동연(Member, Yeongnam University) | Dong- Yeon Lee Corresponding author