20ft 접이식 컨테이너용 토션바 해석에 관한 연구

Many container companies have been developed folding container because of its efficiency. However, due to the nature of these folding containers, folding container needs a lot of energy when it is folded or unfolded. In order to overcome this disadvantage, recently torsion bar type of hinges were considered for folding mechanism. Torsion bar in the hinges stores torsional energy when it is folded by own weight. And container uses this torsional energy when it is unfolded. So in this paper, we study on the best torsional spring stiffness for 20ft containers that commonly used.