OPENING REINFORCEMENT METHOD FOR AXIAL PRESSURE REINFORCEMENT RIB CYLINDRICAL SHELL

摘要

PROBLEM TO BE SOLVED: To reduce calculation costs for optimum design by enhancing structural efficiency of partial reinforcement design for an opening.SOLUTION: The present invention relates to an opening reinforcement method for an axial pressure reinforcement rib cylindrical shell with respect to a design field of a main load resistant member of an aerospace structure, and the opening reinforcement method for the axial pressure reinforcement rib cylindrical shell includes the steps of: sectioning the axial pressure reinforcement rib cylindrical shell including an opening into an opening distal region and an opening vicinity region; structuring an equivalent rigid model in the opening distal region and also structuring a precise geometric model in the opening vicinity region so as to obtain a mixed analytic model of the axial pressure reinforcement rib cylindrical shell; and checking an optimization result by optimizing opening reinforcement as to the axial pressure reinforcement rib cylindrical shell.SELECTED DRAWING: Figure 1