AKANDA, Ramjan Ali; RIMU, Nasrin Nahar; ISLAM, Md. Antajul; UDDIN, Nasir; KARIM, Rezaul; DEY, Pinakee. APPROXIMATE DYNAMICAL ANALYSIS OF DAMPED NONLINEAR MECHANICAL SYSTEMS WITH TIME-VARYING PARAMETERS USING HYBRID ANALYTICAL METHODS. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 17, n. 01, p. 17–27, 2026. DOI: 10.61841/turcomat.v17i01.15505. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/15505. Acesso em: 7 may. 2026.