Szymon Greś
Postdoc |ETH-Zürich/Aarhus University
I am currently on an international postdoc at ETH-Zürich in Switzerland and Aarhus University in Denmark.
My academic career started at Gdańsk University of Technology in Poland, from where I've received an Engineering degree in Civil and Structural Engineering in 2013. The same year I moved to Denmark and earned M.Sc. in the same domain from Aalborg University, Aalborg, in 2015.
I’ve spent 2015 as researcher in the offshore wind energy sector and the same year I received an Innovationsfonden grant for an Industrial Ph.D. starting in 2016. I’ve received the Ph.D. degree in Civil and Structural Engineering from Aalborg University in 2019. In 2019-2020, I joined I4S team at INRIA Rennes, France, for a short postdoc. In 2020-2021, I've joined Dr Palle Andersen at Structural Vibration Solutions A/S in Denmark as a research engineer. In 2021, I received funding from the Independent Research Fund Denmark (DFF) for an International Postdoc between ETH-Zürich and Aarhus University.
My research concerns statistical aspects in subspace system identification and fault detection/isolation/quantification in application to Operational Modal Analysis (OMA) and Structural Health Monitoring (SHM).
Recent News
April 2023: My recent work on low-rank approximation of Hankel matrices based on statistical analysis of the eigenvalue condition numbers has finally been accepted to the Mechanical Systems and Signal Processing journal. Check out the published article here!
March 2023: Our paper on estimating small parametric errors with Kalman filter has been accepted to IFAC23 World Congress. Check out the preprint of this work here!
July 2022: My joint work with the SMM team on denoising in statistical damage diagnosis has been presented at IOMAC22 in Vancouver! See the paper here.
March 2022: After some months at Aarhus University I am joining the Chair of SMM division at ETH-Zürich (see here). I am looking forward to the next year at ETHZ!
February 2022: My collaboration with DTU Wind has resulted in a paper Uncertainty quantification of modal parameter estimates obtained from subspace identification: an experimental validation on a laboratory test of a large-scale wind turbine blade published in the Engineering Structures journal.
October 2021: Our paper Uncertainty quantification of input matrices and transfer function in input/output subspace system identification has been accepted to the Mechanical Systems and Signal Processing journal.
July 2021: My postdoc project Fault quantification in operating wind turbines has received funding from the Independent Research Fund Denmark (DFF). In the next 2 years I will work on the system identification and the damage diagnosis of wind turbines with the Chair of SMM division at ETH-Zürich and the Computational Methods team at Aarhus University. See more about it here.
More News
April 2021: Our paper Subspace-based Mahalanobis damage detection robust to changes in excitation covariance has been accepted to the Structural Control and Health Monitoring journal.
March 2021: Our paper Statistical model-based optimization for damage extent quantification has been accepted to the Mechanical Systems and Signal Processing journal.
January 2021: Together with Laurent Mevel and Michael Döhler we've submitted a paper titled Statistical optimization for subspace-based damage quantification to the SHMII-10 conference.
December 2020: Our paper titled Hankel matrix-based Mahalanobis distance for fault detection robust towards changes in process noise covariance has been accepted to the IFAC SYSID21 conference.
November 2020: Our papers Uncertainty quantification of the Modal Assurance Criterion in Operational Modal Analysis and Uncertainty quantification for the Modal Phase Collinearity of complex mode shapes have been accepted to the Mechanical Systems and Signal Processing journal.
October 2020: I gave an online seminar on Uncertainty Quantification in Operational Modal Analysis - Theory and Applications, organized by Structural Vibration Solutions A/S.
July 2020: Our paper Variance computation for system matrices and transfer function from input/output subspace system identification has been accepted in the IFAC World Congress 2020 conference journal.
May 2020: Our paper Kalman filter-based Subspace Identification for Operational Modal Analysis under Unmeasured Periodic Excitation has been accepted to the Mechanical Systems and Signal Processing journal.
November 2019: I've defended my PhD thesis titled Vibration-based monitoring of structures: algorithms for fault detection and uncertainty quantification of modal indicators. Its electronic copy can be found here.