In this study, natural frequency characteristics of road mower head system are investigated through experiment and numerical analysis. ANSYS workbench 14.5 is used to calculate the frequency analysis in the mower system. Compared the natural frequency using the modal test and computerized analysis. When compared with the experimental results, a 5% error rate has occurred. Simulation results showed that vibration mode shape has directional characteristics, especially to the right and left. These results will be helpful in optimal design for road mower head systems.

Abstract
 1. 서론
 2. 실험장치의 구성 및 방법
 3. 전산 해석 기법
 4. 결과 및 고찰
 References

• 허진석(Division of Mechanical and Automotive Engineering of Wonkwang University) | Jin-Seok Heo
• 채용배(Division of Mechanical and Automotive Engineering of Wonkwang University) | Yong-Bae Chae
• 임현호(Hanlim Technlolgy Co, Ltd.) | Hyeon-Ho Lim
• 이상호(Division of Mechanical and Automotive Engineering of Wonkwang University) | Sang-Ho Lee Corresponding Author