1. Graduate Student, Faculty of Civil and Industrial Engineering, Univ. of Rome “La Sapienza,” Via Eudossiana 18, 00184 Rome, Italy (corresponding author).
2. Assistant Professor, Dipartimento di Ingegneria Meccanica e Aerospaziale, Univ. of Rome “La Sapienza,” Via Eudossiana 18, 00184 Rome, Italy.
3. Associate Professor, Dipartimento di Ingegneria Astronautica, Elettrica ed Energetica, Univ. of Rome “La Sapienza,” Via Eudossiana 18, 00184 Rome, Italy.