Lévy flight trajectory-based whale optimization algorithm for engineering optimization. Issue 7 (1st October 2018)

• Record Type: Journal Article
• Authors: Zhou, Yongquan; Ling, Ying; Luo, Qifang
• Is Part Of: Engineering computations. Volume 35:Issue 7(2018)
• Page Start: 2406
• Page End: 2428
• Publication Date: 2018-10-01
• Subjects: Engineering optimization -- Lévy flight trajectory -- Meta-heuristic algorithm -- Whale optimization algorithm; Computer-aided engineering -- Periodicals; Computer graphics -- Periodicals; 620.00285
• DOI: 10.1108/EC-07-2017-0264
• Languages: English
• ISSNs: 0264-4401

Abstract

Abstract : Purpose: This paper aims to represent an improved whale optimization algorithm (WOA) based on a Lévy flight trajectory and called the LWOA algorithm to solve engineering optimization problems. The LWOA makes the WOA faster, more robust and significantly enhances the WOA. In the LWOA, the Lévy flight trajectory enhances the capability of jumping out of the local optima and is helpful for smoothly balancing exploration and exploitation of the WOA. It has been successfully applied to five standard engineering optimization problems. The simulation results of the classical engineering design problems and real application exhibit the superiority of the LWOA algorithm in solving challenging problems with constrained and unknown search spaces when compared to the basic WOA algorithm or other available solutions. Design/methodology/approach: In this paper, an improved WOA based on a Lévy flight trajectory and called the LWOA algorithm is represented to solve engineering optimization problems. Findings: It has been successfully applied to five standard engineering optimization problems. The simulation results of the classical engineering design problems and real application exhibit the superiority of the LWOA algorithm in solving challenging problems with constrained and unknown search spaces when compared to the basic WOA algorithm or other available solutions. Originality value: An improved WOA based on a Lévy flight trajectory and called the LWOA algorithm is first proposed.