Truss Structure Optimization with Subset Simulation and Augmented Lagrangian Multiplier Method

Truss Structure Optimization with Subset Simulation and Augmented Lagrangian Multiplier Method

This paper presents a global optimization method for structural design optimization, which integrates subset simulation optimization (SSO) and the dynamic augmented Lagrangian multiplier method (DALMM). The proposed method formulates the structural design optimization as a series of unconstrained op...

Full description

Bibliographic Details
Main Authors: Feng Du, Qiao-Yue Dong, Hong-Shuang Li
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Algorithms
Subjects:
structural optimization
subset simulation optimization
augmented Lagrangian
truss structures
Online Access:https://www.mdpi.com/1999-4893/10/4/128
Description
Summary:This paper presents a global optimization method for structural design optimization, which integrates subset simulation optimization (SSO) and the dynamic augmented Lagrangian multiplier method (DALMM). The proposed method formulates the structural design optimization as a series of unconstrained optimization sub-problems using DALMM and makes use of SSO to find the global optimum. The combined strategy guarantees that the proposed method can automatically detect active constraints and provide global optimal solutions with finite penalty parameters. The accuracy and robustness of the proposed method are demonstrated by four classical truss sizing problems. The results are compared with those reported in the literature, and show a remarkable statistical performance based on 30 independent runs.
ISSN:1999-4893

Similar Items