Formulation of Statistical Model to Determine Natural Frequencies of the Cantilever Beam for Linear Variation of Circular Perforation Along the Length. Romanian Journal of Acoustics and Vibration, [S. l.], v. 16, n. 2, p. 106–112, 2020. Disponível em: https://rjav.sra.ro/index.php/rjav/article/view/88.. Acesso em: 2 may. 2026.