TY - JOUR
T1 - Simultaneous optimization of topology and layout of modular stiffeners on shells and plates
AU - Bakker, Coen
AU - Zhang, Lidan
AU - Higginson, Kristie
AU - Keulen, Fred van
PY - 2021
Y1 - 2021
N2 - Stiffened shells and plates are widely used in engineering. Their performance is highly influenced by the arrangement, or layout, of stiffeners on the base shell or plate and the geometric features, or topology, of these stiffeners. Moreover, modular design is beneficial, since it allows for increased quality control and mass production. In this work, a method is developed that simultaneously optimizes the topology of stiffeners and their layout on a base shell or plate. This is accomplished by introducing a fixed number of modular stiffeners, which are subject to density-based topology optimization and a mapping of these modules to a ground structure. To illustrate potential applications, several stiffened plates and shell examples are presented. All examples demonstrated that the proposed method is able to generate clear topologies for any number of modules and a distinct layout of the stiffeners on the base shell or plate.
AB - Stiffened shells and plates are widely used in engineering. Their performance is highly influenced by the arrangement, or layout, of stiffeners on the base shell or plate and the geometric features, or topology, of these stiffeners. Moreover, modular design is beneficial, since it allows for increased quality control and mass production. In this work, a method is developed that simultaneously optimizes the topology of stiffeners and their layout on a base shell or plate. This is accomplished by introducing a fixed number of modular stiffeners, which are subject to density-based topology optimization and a mapping of these modules to a ground structure. To illustrate potential applications, several stiffened plates and shell examples are presented. All examples demonstrated that the proposed method is able to generate clear topologies for any number of modules and a distinct layout of the stiffeners on the base shell or plate.
KW - Ground structure
KW - Modular design
KW - Stiffener layout
KW - Stiffener topology
KW - Topology optimization
UR - http://www.scopus.com/inward/record.url?scp=85118674884&partnerID=8YFLogxK
U2 - 10.1007/s00158-021-03081-0
DO - 10.1007/s00158-021-03081-0
M3 - Article
AN - SCOPUS:85118674884
SN - 1615-147X
VL - 64
SP - 3147
EP - 3161
JO - Structural and Multidisciplinary Optimization
JF - Structural and Multidisciplinary Optimization
IS - 5
ER -