Cătălin Alexandru is a professor at the Transylvania University of Braşov (Romania), within the Product Design, Mechatronics and Environment Department. His teaching and research activity centers mainly on modeling, simulation, optimization and testing of mechanical and mechatronic systems. Dr. Alexandru is a PhD Supervisor in Mechanical Engineering, and he is currently the director of the University Doctoral Council. He is also the coordinator of the virtual prototyping laboratory at the Design of Mechanical Elements and Systems Research Center. He has published more than 250 scientific papers in mainstream journals, books chapters, and conference proceedings. He currently serves as an editor of the Bulletin of Transilvania University of Braşov - Series I: Engineering Sciences. Dr. Alexandru is a member of the International Federation for the Promotion of Mechanism and Machine Science (IFToMM), as well as of the International University Association for Science and Technology of Romania (UASTRO). In 2012 he edited the book Modeling and Simulation in Engineering.