Nader Sawalhi received his PhD from the University of New south Wales (UNSW), Sydney, Australia. Between 1997 and 2003, he worked for Jordan cement factories, Amman, Jordan, as a predictive maintenance engineer and team leader. From 2003 to 2007 he worked on his PhD project at UNSW developing signal processing algorithms and simulation models for rolling element bearings in complex environments. The project under the supervision of Prof Bob Randall was fully supported by the Australian Defence Science and Technology Organization (DSTO) as a part of their Centre of Expertise scheme. He spent three months on sponsored internships with FAG, Schwienfurt, Germany, 2004. Since 2007 he has been working at the school of mechanical and manufacturing engineering at UNSW as a research associate and lecturer. He continued to work closely with DSTO on a number of projects and established a number of international collaborations. Dr. Sawalhi is the main author of over 50 refereed papers and the author of the book: vibrations of spalled rolling element bearings. He is a regular reviewer of the prestigious mechanical systems and signal processing journal. His research interests include signal processing, machine condition monitoring, diagnostics and prognostics, dynamic simulations of mechanical systems and Fluid structural interaction (FSI). Dr. Sawalhi supervised and co-supervised a number of BE thesis students and PhD students. Dr Sawalhi has recently moved to work in Saudi Arabia and currently holds the position of assistant professor at the school of mechanical engineering at Prince Mohammad Bin Fahd University in Khober.