فهرس المقالات Distributed and lumped modeling techniques (DLMT) حرية الوصول المقاله صفحة الملخص نص كامل 1 - Free Torsional Vibration Analysis of Hollow and Solid Non-Uniform Rotating Shafts Using Distributed and Lumped Modeling Technique A Saghafi M .A Azizi 10.22034/jsm.2021.1899087.1591