In this study, the development of gravity type collecting device for nuclear dismantling through CFD simulation is shown as follows. As a result of investigating the dust removal efficiency according to the treatment air velocity of 5 m/s (low speed) ～ 30 m/s (high speed), large dusts (80 ～ 100 ㎛) As the wind speed increases, the damping efficiency decreases and the particle size of the dust behavior increases with the increase of the wind speed. As a result, the wind speed (wind speed) 5 m/s is considered to be suitable for improving the vibration damping efficiency.

Abstract
 1. 서 론
 2. 해석계획
 3. 해석결과 및 고찰
 4. 결 론
 참고문헌

• 박용준(㈜옥당산업) | Park Yong Jun
• 신재경(㈜선공) | Shin Jae Kyung
• 김경민(㈜대우건설) | Kim Kyoung Min
• 김은영(㈜옥당산업) | Kim Eun Young