심층수 취수용 해저 라이저의 흐름 응답 해석

Abstract

It is known that the stability of subsea risers is significant when the risers transport deep sea water to lands. In marine environment, it is hard to predict or estimate external forces on the risers. Also, the damage occurred by external forces can be severely extended into structural instability hence, the structural design should be carefully carried out. Especially, the structural members connecting pipes are critically weak against external forces so that in the study we investigated the structural responses of the connecting members in water flows. For the purpose, 3D finite element models were constructed by introducing a connecting method, which adopted adhesive epoxy. Finally, considering various water flows the displacements and stresses were obtained and compared.forces can be severely extended into structural instability hence, the structural design should be carefully carried out. Especially, the structural members connecting pipes are critically weak against external forces so that in the study we investigated the structural responses of the connecting members in water flows. For the purpose, 3D finite element models were constructed by introducing a connecting method, which adopted adhesive epoxy. Finally, considering various water flows the displacements and stresses were obtained and compared.