DYNAMIC ANALYSIS OF TUBULAR STRUCTURAL SYSTEMS

Tubular structural systems can be found in industrial applications and are responsible for keeping any closed environment within a range of temperature, humidity and cleanliness. Tubular structural systems have as one of their applications the internal comfort in industrial spaces, buildings and vehicles, several of these spaces have industrial processes that generate high sound frequencies and mechanical vibrations that need to be properly controlled in order to meet both standards. In order to analyze the structural vibration of tubular systems, the modal analysis technique is a classical methodology for extraction of natural frequencies and vibration modes. Among the modal analysis techniques, numerical methodologies, such as the finite element method, and analytical methodologies, such as the Modal Component Synthesis (SMC), are also noteworthy. The objective of this work is to demonstrate the application of the SMC technique to estimate the natural frequencies and vibration modes of a simplified structural tubular system. The system is composed of two substructures, which together with SMC using MATLAB® and ANSYS® software, will form a global system.