Advances in nanoparticle-enhanced music composition based on porous beams: Implications for structural integrity and acoustic performance

The investigations report a detailed study of the dynamical behavior and acoustic performance of nanoparticle-enhanced music composition based on porous beams, oriented to make a connection to applications in the design and optimization of musical instruments. In more detail, what is evaluated is how harmonic transverse dynamic loading, combined with structural damping, influences the mechanical and acoustic properties of such advanced structures. Effective properties of the nanocomposite material are computed using Mori-Tanaka's model. These will, in turn, be used to bring out the role of nanoparticles in enhancing the general performance of beams. The nonlinear strain-deflection relationships, energy principles, Hamilton's principle, and derivation of the governing equations for the musical instruments have been explained to ensure a strong theoretical base for the development. A detailed assessment of the dynamic response of the nanoparticle-enhanced musical instruments is conducted, and analysis of their behavior under different conditions is obtained by numerical method. The current study aims to understand the various effects of the key parameters on dynamic and the acoustic properties of musical instruments. Results showed that increasing the volume percentage of the nanoparticles could drastically reduce the acoustic properties by about 71%, hence pointing to a possible improvement in acoustic quality for musical instruments made from these materials. Some very useful ideas, based on the results obtained, occur vis-à-vis how to design an instrument and select materials w.r.t structural integrity and acoustic performance of instruments.