Abstract
In Brazil, systematic studies related to the design of amusement park equipment are still incipient. Essential normative references for these projects, such as NBR 15926-2 and ISO 17842-1 which deals with design and installation safety requirements, are often not effectively applied, increasing the risk of structural failures and neglecting stability and operational safety evaluation. Consequently, most of these equipment are imported, lacking national designs. The aim of this paper is to perform a preliminary analysis of the structural design of an accessible flexible Ferris wheel, evaluating safety coefficients through a parametric study of its geometry, including actions related to its operation, loading, and wind action. The structure modeling is conducted via Finite Element Method (FEM) using Ansys Mechanical APDL software using beam and mass elements. A routine implemented through MATLAB software communicates the input parameters and the modeled structure via FEM, allowing an easy alteration of the geometric variables, as well as the rectangular or square steel tube sections standardized by NBR-6591. Finally, a multi-objective optimization is implemented via Genetic Algorithms (GAs) with a fitness function aiming to maximize the safety coefficient and minimizing the mass. Optimal combinations are investigated and compared, proving the efficiency of this design methodology.
Published Version
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