Luciano Lamberti, Dipartimento Meccanica, Matematica e Management, Politechnico di Bari, Bari, Italy. Ming-Tzer Lin, Graduate Institute of Precision Engineering, National Chung Hsing University, Taichung, Taiwan. Cosme Furlong, Mechanical Engineering Department, Worcester Polytechnic Institute, Worcester, USA. Cesar Sciammarella, Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, USA. Phillip L. Reu, Sandia National Laboratory, Albuquerque, USA. Michael A Sutton, Department of Mechanical Engineering, University of South Carolina, Columbia, USA.