Abstarct: The present work is focused on the analysis of the effectiveness of dynamic vibration absorbers applied to Euler-Bernoulli beam with simply supported excited by moving load or periodic point load. In this work, is used of different dynamics absorbers: a) 2-elements dynamic absorber, consist of mass, a linear spring and a nonlinear spring; b) 2-elements dynamic absorber, consist of mass, a nonlinear spring and a viscous damper; c) 3-elements dynamic absorber, consist of mass, a linear spring, a nonlinear spring and a viscous damper. For solving differential equations governing the problem dynamics, is used of self initiated way. Initially, the governing equations of the beam and absorber dynamics is became dimensionless, and introducing approperiate variable and is used of Galerkin method, the equations is converted to matrix form. Finally, according to the multiple scale method, the problem is solved. Primary resonances and super-harmonic resonances is studied and the frequancy- response diagrams is drawn. For 3-elements absorber, different parameters effect on frequancy- response diagram is investigated and amplitude and place of force for finding optimal location is investigated.