1. Department of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, 42122 Reggio Emilia, Italy
2. InterMech MO.RE, University of Modena and Reggio Emilia, 41125 Modena, Italy
3. Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, 41125 Modena, Italy