An accelerated water evaporation optimization formulation for discrete optimization of skeletal structures. (December 2016)

• Record Type: Journal Article
• Authors: Kaveh, A.; Bakhshpoori, T.
• Is Part Of: Computers & structures. Volume 177(2016)
• Page Start: 218
• Page End: 228
• Publication Date: 2016-12
• Subjects: Water evaporation optimization -- Mixed phases -- Computational speed -- Weight minimization of skeletal structures; Structural engineering -- Data processing -- Periodicals; Electronic data processing -- Structures, Theory of -- Periodicals; 624.171
• DOI: 10.1016/j.compstruc.2016.08.006
• Languages: English
• ISSNs: 0045-7949

Abstract

Highlights: In this study, the computational cost of the Water Evaporation Optimization WEO is improved. This is achieved through the simultaneous utilizing of its two phases. The new formulation is tested on classical discrete optimization problems. A significant enhancement in convergence rate is achieved compared to the basic WEO. Abstract: Water Evaporation Optimization (WEO) is a recently developed physics-based metaheuristic algorithm that mimics the well-known rules governing the evaporation process of water molecules from a solid surface with different wettability. In the WEO algorithm, molecules are updated globally and locally respectively in two independent sequential phases: monolayer and droplet evaporation phases. In this study, the computational cost of the WEO is improved through the simultaneous utilizing of both phases. The new formulation is tested on classical discrete optimization problems achieving a significant enhancement in convergence rate compared to the basic WEO.