1. Department of Mechanical Engineering ‐ FEUP University of Porto Porto Portugal
2. CMAT ‐ Centre of Mathematics University of Minho Braga Portugal
3. CEMAT, Instituto Superior Técnico Universidade de Lisboa Lisbon Portugal
4. Department of Mathematics University of Trás‐os‐Montes e Alto Douro, UTAD Vila Real Portugal
5. Center for Mathematics and Applications (NovaMath), FCT NOVA and Department of Mathematics FCT NOVA Quinta da Torre Caparica 2829‐516 Portugal