Otimização estrutural aplicada no projeto do conjunto base do guindaste articulado

Abstract

With the resumption of growth that the Brazilian economy has been experiencing, new doors for investments are opened daily. Many of these investments are seen in sectors like the energy industry, ports, airports and in infrastructure construction in general. where the use of knuckle boom cranes is frequent and tends to be increased. That said, the present work aimed to obtain an optimized structure of the crane base, which represents a large part of the mass of the equipment, making it lighter and more competitive in the market. To achieve this goal, software was used to model the components and topological optimization of the structure, always aiming to comply with the guidelines imposed by NBR 14768 (2015), which establishes the minimum design requirements, calculations, inspections and tests of knuckle boom cranes. To summarize, the new geometry obtained resulted in a reduction equivalent to 13.2% of the total base mass, as well as an average reduction of 13.4% of the maximum observed stress of the structure (sic).