State-Space Model of a Mechanical System in MATLAB/Simulink

This paper describes solution of the equations of motion of the mechanical system by using State-Space blocks in MATLAB/Simulink. It deals with the mechanical system with two degrees of freedom. State-Space block solution is compared with solution made by an alternative approach, using so called Transfer Fcn block. Equations are also derived by Newton's second law, Lagrange‘s equations and the Hamilton‘s equations.