Lightweight design of variable-angle filament-wound cylinders combining Kriging-based metamodels with particle swarm optimization

Autor: Zhihua Wang, José Humberto S. Almeida, Aravind Ashok, Zhonglai Wang, Saullo G. P. Castro
Přispěvatelé: University of Electronic Science and Technology of China, Department of Mechanical Engineering, Delft University of Technology, Aalto-yliopisto, Aalto University
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Wang, Z, Almeida Jr, J H S, Ashok, A, Wang, Z & G. P. Castro, S 2022, ' Lightweight design of variable-angle filament-wound cylinders combining Kriging-based metamodels with particle swarm optimization ', Structural and Multidisciplinary Optimization, vol. 65, no. 5, 140 . https://doi.org/10.1007/s00158-022-03227-8
Structural and Multidisciplinary Optimization, 65(5)
ISSN: 1615-147X
Popis: Variable-angle filament-wound (VAFW) cylinders are herein optimized for minimum mass under manufacturing constraints, and for various design loads. A design parameterization based on a second-order polynomial variation of the tow winding angle along the axial direction of the cylinders is utilized to explore the nonlinear steering-thickness dependency in VAFW structures, whereby the thickness becomes a function of the filament steering angle. Particle swarm optimization coupled with three Kriging-based metamodels is used to find the optimum designs. A single-curvature Bogner–Fox–Schmit–Castro finite element is formulated to accurately and efficiently represent the variable stiffness properties of the shells, and verifications are performed using a general purpose plate element. Alongside the main optimization studies, a vast analysis of the design space is performed using the metamodels, showing a gap in the design space for the buckling strength that is confirmed by genetic algorithm optimizations. Extreme lightweight while buckling-resistant designs are reached, along with non-conventional optimum layouts thanks to the high degree of thickness build-up tailoring.
Databáze: OpenAIRE