CPC F02C 7/00 (2013.01) [F01D 25/24 (2013.01); F01D 25/26 (2013.01); F05D 2220/323 (2013.01)] | 20 Claims |
1. A stiffening structure to extend in an axial direction to surround a turbine engine, the stiffening structure comprising:
recessed unit cells defining an inner surface of the stiffening structure, the recessed unit cells being radially inward relative to a neutral plane;
protruding unit cells defining an outer surface of the stiffening structure, the protruding unit cells being radially outward relative to the neutral plane;
a plurality of edges, each edge connecting a respective protruding cell with a laterally adjacent recessed unit cell; and
nodes connecting the inner surface and the outer surface to form the stiffening structure.
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