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Multi-objective reliability-based topology optimization of structures using a fuzzy set model
Author(s)
Sleesongsom, Suwin
Bureerat, Sujin
Date Issued
October 1, 2020
Type
Article
Abstract
This research proposes a multi-objective reliability-based topology optimization (MORBTO) for structural design, which considers uncertain structural parameters based on a fuzzy set model. The new technique is established in the form of multi-objective optimization where the equivalent possibilistic safety index (EPSI) is included as one of the objective functions along with mass, and compliance. This technique can reduce complexity due to a double-loop nest problem used previously due to performing single objective optimization. The present technique can accomplish within one optimization run using a multi-objective approach. Two design examples are used to demonstrate the present technique, which have the objectives as structural mass and compliance with the constraint of structural strength. The results show the proposed technique is effective and simple compared to previous techniques.
Citation
Journal of Mechanical Science and Technology, 34(10), 3973-3980, 2020