1. 1 Department of Mechanical Engineering, University of Debrecen, Debrecen, Hungary
2. 2 Department of Basic Technical Studies, University of Debrecen, Debrecen, Hungary, kocsisi@eng.unideb.hu
3. 3 Department of Engineering Management and Enterprise, University of Debrecen, Debrecen, Hungary, portik@eng.unideb.hu
4. 4 Department of Robert Bosch Mechatronics, University of Miskolc, Miskolc, Hungary, szabo.tamas@uni-miskolc.hu
5. 5 Department of Mechanics, University of Miskolc, Miskolc, Hungary, mechpacz@uni-miskolc.hu