NUMERICAL INVESTIGATIONS OF THE NATURAL FREQUENCIES AND MODE SHAPES OF THE TORSIONAL VIBRATIONS IN THE SAW UNIT OF A KIND OF WOOD SHAPERS, USED IN THE WOOD PRODUCTION. Innovation in Woodworking Industry and Engineering design, [S. l.], v. 2, n. 2, 2026. Disponível em: http://innojs.ltu.bg/index.php/scjournal-inno/article/view/101. Acesso em: 25 feb. 2026.