Xinxin Yu

Dr. Xinxin Yu, (PI, D.Sc. (Tech.)) is currently leading the project of DETECT4WE: Model-based estimation of railroad wheel-to-rail profile change and contact forces funded by Marie-curie postdoc fellowship project. In collaboration with the University of Seville, Delft University of Technology, and ProRail Ltd, she aims to develop a model-based estimation approach for the condition monitoring of railroad wheel-to-rail profile change and contact forces and to validate it experimentally. Her second ongoing project is ACROSS: Dynamic investigation on a curved origami-inspired robotic surgical microgripper considering soft contact and variable stiffness funded by the Academy of Finland (Mobility cooperation with Japan, China, or Germany). In collaboration with Shanghai Jiaotong University (China), she aims to design a novel surgical microgripper that can be used for minimally invasive surgery.

2024 Best theoretical Award (Honourable Mention). Issued by Journal of Mechanism and Machine Theory at MMT Symposium for celebrating 60 years of journal's foundation.

2023 Marie-curie postdoc fellowship project as PI.

2022 Lagrange Award - Multibody System Dynamics Outstanding PhD Thesis Prize (Honourable Mention). Issued by Journal of Multibody Dynamics and the International Federation for the Promotion of Mechanism and Machine Science (IFToMM).

2021 PhD Thesis pass with distinction, under 10% to 15% per year at Lappeenranta University of Technology.

2024-present Chair Secretariat of the Technical Committee for Multibody Dynamics at IFToMM.

2023-present Member of the Technical Committee for Multibody Dynamics at IFToMM.

Multibody system dynamics

Contact modeling

Experimental and computational railway vehicle dynamics. 

06.2024 - present, Assistant professor (tenure-track). Faculty of Engineering and Natural Sciences, Tampere University, Finland.

08. 2023 - 06.2024, Post-doc researcher, Faculty of Civil Engineering and Geoscience, Delft University of Technology, Netherlands. Supervisor: Prof. Zili Li.

02. 2023 - 03. 2023, Visiting researcher, Department of Mechanical Engineering, Instituto Superior Técnico, University of Lisbon, Portugal. Supervisors:  Prof. Jorge Ambrósio.

06. 2022 - 08. 2023, Post-doc researcher, Department of Mechanical Engineering. University of Seville, Spain. Supervisor: Prof. Jose Escalona.

01. 2022 - 06. 2022, Post-doc researcher, Department of Mechanical Engineering. Lappeenranta University of Technology, Finland. Supervisor: Prof. Aki Mikkola.

01. 2018 - 12. 2021, Junior researcher, Department of Mechanical Engineering. Lappeenranta University of Technology, Finland. Supervisor: Prof. Aki Mikkola.

[1] X. Yu, A. Zwölfer, A. Mikkola, An efficient finite-element floating frame of reference based recursive formulation for the modelling of planar flexible applications, Journal of Sound and Vibration, 547 (2023) 117542.

[2] X. Yu, S. Muñoz, P. Urda, J. F. Aceituno, M. Rodríguez, J. L. Escalona, Study of signal processing techniques for detecting rail corrugation using axle-box accelerometers in a scaled experimental track, Meaurements, under review (2023).

[3] S. Muñoz, P. Urda, X. Yu, A. Mikkola, J. L. Escalona, Real-time measurement of track irregularities using an instrumented axle and Kalman filtering techniques, Journal of Computational and Nonlinear Dynamics, published (2023).

[4] Q. Khadim, Y. S. Hagh, D. Jiang, L. Pyrhönen, S. Jaiswal, V. Zhidchenko, X. Yu, E. Kurvinen, H. Handroos, A. Mikkola, Experimental investigation into the state estimation of a forestry crane using the unscented Kalman filter and a multiphysics model, Mechanism and Machine Theory, In press (2023). 

[5] X. Yu, J. F. Aceituno, E. Kurvinen, M. K. Matikainen, P. Korkealaakso, A. Rouvinen, D. Jiang, J. L. Escalona, A. Mikkola, Comparison of numerical and computational aspects between two constraint-based contact methods in the description of wheel/rail contacts, Multibody System Dynamics (2022). 

[6] X. Yu, A. Mikkola, Y. Pan, J. L. Escalona, The explanation of two semi-recursive multibody methods for educational purpose, Mechanism and Machine Theory 175 (2022) 104935. 

[7] Y. Pan, L. Huang, W. Dai, J. Zhao, X. Yu, A. Mikkola, Rod-removal technique for flexible-rods in the framework of semi-recursive multibody formulation, Mechanism and Machine Theory 169 (2022) 104625.

[8] M. Mohammadi, Y. S. Hagh, X. Yu, A. Mikkola, State estimation of flexible multibody systems based on nonlinear kalman filter, IEEE Access 10 (2022) 40237-40248.

[9] J. L. Escalona, X. Yu, J. F. Aceituno, Wheel-rail contact simulation with lookup tables and KEC profiles: A comparative study, Multibody System Dynamics 52 (4) (2021) 339-375. 

[10] B. Bozorgmehri, X. Yu, M. K. Matikainen, A. B. Harish, A. Mikkola, A study of contact methods in the application of large deformation dynamics in self-contact beam, Nonlinear Dynamics 103 (1) (2021) 581–616.