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Using assembly representations to enable evolutionary design of Lego structures
Journal article   Open access   Peer reviewed

Using assembly representations to enable evolutionary design of Lego structures

MAXIM Peysakhov and WILLIAM C. Regli
Artificial intelligence for engineering design, analysis and manufacturing, v 17(2)
May 2003
url
https://doi.org/10.1017/s0890060403172046View
Published, Version of Record (VoR) Open

Abstract

Assembly Modeling Computer-Aided Design Engineering Design Evolutionary Design Lego Genetic Algorithms
This paper presents an approach to the automatic generation of electromechanical engineering designs. We apply messy genetic algorithm (GA) optimization techniques to the evolution of assemblies composed of LegoTM structures. Each design is represented as a labeled assembly graph and is evaluated based on a set of behavior and structural equations. The initial populations are generated at random, and design candidates for subsequent generations are produced by user-specified selection techniques. Crossovers are applied by using cut and splice operators at the random points of the chromosomes; random mutations are applied to modify the graph with a certain low probability. This cycle continues until a suitable design is found. The research contributions in this work include the development of a new GA encoding scheme for mechanical assemblies (Legos), as well as the creation of selection criteria for this domain. Our eventual goal is to introduce a simulation of electromechanical devices into our evaluation functions. We believe that this research creates a foundation for future work and it will apply GA techniques to the evolution of more complex and realistic electromechanical structures.

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Web of Science research areas
Computer Science, Artificial Intelligence
Computer Science, Interdisciplinary Applications
Engineering, Manufacturing
Engineering, Multidisciplinary
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