2024-03-29T10:35:52Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00030518
2023-01-16T04:42:35Z
320:2524:2525:2528
COMPUTATIONAL MORPHOGENESIS OF DISCRETE STRUCTURES VIA GENETIC ALGORITHMS
KAWAMURA, Hiroaki
101582
OHMORI, Hiroshi
101583
genetic algorithm
topology optimization
structural optimization
trussstructure
non-linear programming
computational morphogenesis
2002-03-29
Present paper describes the use of a stochastic search procedure based ongenetic algorithms (GAs), in developing near-optimal topologies of load-bearingdiscrete structures. Much work has already been published on the topology optimi-zation of discrete stuctures using genetic algorithms. In most of those papers, thetopology of structures are expressed as a simple combination of members, and theexistence of each member is directly connected to the genetic code. These methods,however, have a weak point. Namely when these methods are simply applied toexpress the topology of frame structures, there might be included needless membersor those which lie on the other members. In addition to these problems, generatedstructures are not guaranteed to be structurally stable. These problems become moreremarkable when the freedom of the problem becomes large. Present paper pro-poses new methods for expression of the stable discrete structures. A detail of theproposed methodology is presented as well as the results of numerical examples thatclearly show the effectiveness and efficiency of the present methods.
departmental bulletin paper
School of Engineering, Nagoya University
2002-03-29
Memoirs of the School of Engineering, Nagoya University
53
28
55
0919-0805
eng