This paper is focused on an optimal design of two degree of freedom (2-DOF) dynamic vibration absorber (DVA) for the simply supported damped beam subject to a harmonic force excitation. In order to achieve this aim, we first show how to define the objective function of optimal design problem for 2-DOF DVA. Second, we apply the cyclic topology-based particle swarm optimization (PSO) to find the optimal design parameters of 2-DOF　DVA. Finally, some numerical results are compared with those of conventional researches, which demonstrates a reliability of the proposed design method

Abstract
 1. 서론
 2. 2자유도 동흡진기의 최적설계 문제 도출
 3. 순환적 네트워크 토폴로지 기반 입자 군집 최적화 기법
 4. 결과 및 고찰
 5. 결론
 후기
 References

• 안영명(서일대학교 자동차과) | Young-Myung Ahn
• 천세민(중앙대학교 기계공학과) | Se-Min Chun
• 김태형(중앙대학교 기계공학부) | Tae-Hyoung Kim Corresponding Author