List of Articles Concentrated mass Open Access Article Abstract Page Full-Text 1 - Transverse Vibration of Clamped and Simply Supported Circular Plates with an Eccentric Circular Perforation and Attached Concentrated Mass S.M Mirkhalaf Valashani 20.1001.1.20083505.2009.1.1.5.4 Open Access Article Abstract Page Full-Text 2 - Whirling Analysis of Axial-Loaded Multi-Step Timoshenko Rotor Carrying Concentrated Masses K Torabi H Afshari H Najafi 20.1001.1.20083505.2017.9.1.11.6 Open Access Article Abstract Page Full-Text 3 - Vibration Analysis of Multi-Step Bernoulli-Euler and Timoshenko Beams Carrying Concentrated Masses K Torabi H Afshari H Najafi 20.1001.1.20083505.2013.5.4.2.5 Open Access Article Abstract Page Full-Text 4 - Nonlinear Vibration Analysis of the Beam Carrying a Moving Mass Using Modified Homotopy M Poorjamshidian J Sheikhi S Mahjoub-Moghadas M Nakhaie 20.1001.1.20083505.2014.6.4.5.5 Open Access Article Abstract Page Full-Text 5 - Exact Closed-Form Solution for Vibration Analysis of Truncated Conical and Tapered Beams Carrying Multiple Concentrated Masses K Torabi H Afshari M Sadeghi H Toghian 20.1001.1.20083505.2017.9.4.6.7