期刊
COMPOSITE STRUCTURES
卷 157, 期 -, 页码 155-162出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2016.08.022
关键词
Cylindrical; Grid structures; Optimization
The minimum mass designs of state of the art helical circumferential grids are compared to axial helical grids. Analytical models based on the classical laminate theory deliver optimization results in less than one second. Using finite element models the obtained results are validated and adjusted in a second optimization step. Studies on the influence of rib heights and Young's modulus show potential to create lighter grids in axial helical design than in helical circumferential design. This is shown for medium length cylinders from relatively low up to very high load levels. (C) 2016 Elsevier Ltd. All rights reserved.
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