1. Department of Mechanical Engineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
2. Department of Mechanical Engineering, Institute of Mechanical Engineering and Industrial Management (INEGI), Porto, Portugal
3. UNIDEMI, Department of Mechanical and Industrial Engineering, NOVA School of Science and Technology, Universidade Nova de Lisboa, Lisboa, Portugal
4. Department of Mechanical Engineering, LAETA, IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal