List of Articles Open Access Article Abstract Page Full-Text 1 - Analysis of Nonlinear Vibrations of Impact Dampers in Boats Anoshirvan Farshidianfar Mahdiye Shafipoor Milad Sabbagh Sabzevar Open Access Article Abstract Page Full-Text 2 - Vibrations and Damping Analysis of Composite Sandwich Panels with Reinforced Kevlar Fibers Abdolhossein Fereidoon Ali Hazrati Niyari Open Access Article Abstract Page Full-Text 3 - A 21-Degree of Freedom Modeling and Dynamic Analysis of an Iranian Railway Coach Hamid Tavakoli Javad Alizade Kakalor Open Access Article Abstract Page Full-Text 4 - Analysis of Bifurcation and Chaos in Nonlinear Gear System with Backlash, Static Transmission Error and Time Varying Stiffness Anoshirvan Farshidianfar Amin Saghafi Iman Saghafi Open Access Article Abstract Page Full-Text 5 - Finite Element Model Updating Using Response Function Method Mohamad Reza Ashory Hamid Daiyan Ehsan Jamshidi Open Access Article Abstract Page Full-Text 6 - Dynamic Analysis of a Composite Timoshenko Beam on Viscoelastic Foundation under Moving Load and Axial Force Mohamad Javad Rezvani Mohamad Hosein Kargarnovin