Model creation for static, kinematic and dynamic analysis and synthesis of mechanical systems. Simulation of textile machine dynamic systems in Matlab/Simulink. Modelling of mechanical systems in software designed to solve coupled mechanical systems (Creo, MSC.Adams). Employing of CAD systems in creating a geometric model. Model parameterization, sensitivity analysis and optimization, creation of rigid and flexible bodies and constrains. Modelling of selected processes regarding specialization (a floating needle system, a play in kine-matic couplings, a yarn ballooning etc.).