STRUCTURE FOR REDUCING DEFORMATION OF MEMBRANE

摘要

PURPOSE: A structure for reducing the deformation of a membrane is provided to reduce the deformation of a membrane and to increase the safety of a cargo tank by changing the directions of large corrugations and small corrugations of the membrane receiving sloshing force. CONSTITUTION: A structure for reducing the deformation of a membrane(100) comprises a membrane. Angular portions(120,130,140) are formed in at least one of multiple vertex areas of the membrane. Small corrugations are formed in parallel to a longitudinal direction or a vertical direction of a hull in membrane areas where the angular portions are not formed. The small corrugations form an inclination angle in a longitudinal direction or a vertical direction of a hull.