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윤원상(Won-Sang Yun),배규현(Gyu-Hyun Bae),범희락(Hee-Rak Beom),홍성욱(Seong-Wook Hong) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
Multi-stage deploying beams are useful for transporting parts or products in production lines. However, such multi-stage beams often cause unwanted vibration. This paper is concerned with the dynamic modeling and analysis of 2-stage axially deploying beam under gravity. A variable domain finite element method is employed to develop the dynamic model. Several deploying strategies are tested to analyze the residual vibrations.
중력에 의해 진동하는 2단 축방향 전개 보의 유한요소 모델링
윤원상(Won-Sang Yun),배규현(Gyu-Hyun Bae),범희락(Hee-Rak Beom),홍성욱(Seong-Wook Hong) 한국생산제조학회 2012 한국생산제조학회지 Vol.21 No.2
Multi-stage deploying beams are useful for transporting parts or products handling in production lines. However, such multi-stage beams are often exposed to unwanted vibration due to the presence of their flexibility and time-varying properties. This paper is concerned with dynamic modeling and analysis of 2-stage axially deploying beams under gravity by using the finite element method. A variable domain finite element method is employed to develop the dynamic model. A rigorous method to account for engagement of two-stage beams during the deploying procedure is introduced by breaking the entire domain into three variable domains. Several deploying strategies are tested to analyze the residual vibrations. Several examples are illustrated to investigate the self-induced damping and the effects of deploying strategy on the vibrations.