Stiffened structure including an opening

摘要

#CMT# #/CMT# The structure (10) has nodes (12) in which a set of stiffeners (14.1-14.3) of different directions intersects with each other. Surfaces of the set of stiffeners are arranged in planes. An opening (26) is surrounded by a hexagonal belt that is formed by peripheral stiffeners (40). Secondary stiffeners (44) are aligned with the set of stiffeners. The secondary stiffeners have the same cross-section as the peripheral stiffeners. Connecting units e.g. bolts, are arranged between the opening and the hexagonal belt. #CMT#USE : #/CMT# Isogrid type stiffened structure for use in an aircraft. #CMT#ADVANTAGE : #/CMT# The configuration of the structure improves the integration of the opening in the structure while limiting the impact of the opening in the structure. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a front view of an isogrid type stiffened structure with an attachment ring of a pipe. 10 : Isogrid type stiffened structure 12 : Nodes 14.1-14.3 : Stiffeners 26 : Opening 40 : Peripheral stiffeners 44 : Secondary stiffeners.