1. Slovak University of Technology in Bratislava , Faculty of Mechanical Engineering, Institute of Applied Mechanics and Mechatronics , Nám. slobody 17, 812 31 Bratislava , Slovakia
2. Slovak University of Technology in Bratislava , Faculty of Mechanical Engineering, Institute of Manufacturing Systems, Environmental Technology and Quality Management , Nám. slobody 17, 812 31 Bratislava , Slovakia