Journal of the Brazilian Society of Mechanical Sciences and Engineering

Abstract Understanding modal parameters is essential for analyzing the vibrational behavior of structures. This study examines the impact of temperature variations and delamination characteristics (damage position and length) on the modal properties of composite sandwich beams. Experimental modal analysis was conducted in a temperature-controlled environment ranging from − 40 °C to 80 °C. Results…

Abstract This study investigates the effect of surface roughness on the resistance components of a high-speed catamaran using CFD. While the influence of roughness has been extensively studied for low-speed monohulls, its impact on high-speed multi-hull vessels remains largely unexplored. Unlike previous work focused on monohulls, this research examines the unique hydrodynamic response of the Del…