People

« Back

Education

• Ph.D. Aerospace Engineering, University of Michigan 2014 - 2020
• M.Sc. Mechanical Engineering, Reykjavik University 2010 - 2012
• B.Sc. Mechatronic Engineering, Reykjavik University 2007 - 2010

Research Interest

• Aeroelastic Optimization
• Aerostructural Optimization
• Matrix-free Newton–Krylov methods
• Automatic differentiation
• High Performance Computing

Publications

1. Design Optimization of America’s Cup AC75 Hydrofoil Sections with Flaps

   G. W. Ng, A. Yildirim, H. Youngren, A. Lamkin, E. Jonsson, and J. R. R. A. Martins

   Journal of Sailing Technology, 10(01):50–73, 2025

   doi:10.5957/jst/2025.10.1.50

   Details

2. CFD-based design optimization of subcavitating hydrofoil profiles with flaps

   A. Yildirim, G. W. Ng, H. Youngren, A. Lamkin, E. Jonsson, , and R. R. A. M. Joaquim

   SNAME 25th Chesapeake Sailing Yacht Symposium, 2025

   doi:10.5957/CSYS-2025-006

   Details

3. Adjoint-based design optimization of stability constrained systems

   S. He, E. Jonsson, J. Li, and J. R. R. A. Martins

   AIAA Journal, 2024

   doi:10.2514/1.J064273

   Details

4. Shaping Sustainable Aviation with CFD-Based Design Optimization

   J. R. R. A. Martins, M. A. S. Abdul-Kaiyoom, E. J. Adler, A. C. Gray, H. Hajdik, E. Jonsson, A. H. R. Lamkin, B. Pacini, and A. Yildirim

   34th Congress of the International Council of the Aeronautical Sciences, 2024

   Details

5. Dynamic hydroelasticity of composite appendages with reverse-mode algorithmic differentiation

   G. W. Ng, E. Jonsson, S. He, and J. R. Martins

   Composite Structures, 2024

   doi:10.1016/j.compstruct.2024.118367

   Details

6. High-fidelity Aerostructural Optimization with a Geometrically Nonlinear Flutter Constraint

   A. C. Gray, C. Riso, E. Jonsson, J. R. R. A. Martins, and C. E. S. Cesnik

   AIAA Journal, 61(6):2430–2443, 2023

   doi:10.2514/1.J062127

   Details

7. pyGeo: A geometry package for multidisciplinary design optimization

   H. M. Hajdik, A. Yildirim, E. Wu, B. J. Brelje, S. Seraj, M. Mangano, J. L. Anibal, E. Jonsson, E. J. Adler, C. A. Mader, G. K. W. Kenway, and J. R. R. A. Martins

   Journal of Open Source Software, 8(87):5319, 2023

   doi:10.21105/joss.05319

   Details

8. Eigenvalue problem derivatives computation for a complex matrix using the adjoint method

   S. He, Y. Shi, E. Jonsson, and J. R. R. A. Martins

   Mechanical Systems and Signal Processing, 185109717, 2023

   doi:10.1016/j.ymssp.2022.109717

   Details

9. Adjoint-based Limit Cycle Oscillation Instability Sensitivity and Suppression

   S. He, E. Jonsson, and J. R. R. A. Martins

   Nonlinear Dynamics, 1113191–3205, 2023

   doi:10.1007/s11071-022-07989-0

   Details

10. High-Fidelity Gradient-Based Wing Structural Optimization Including Geometrically Nonlinear Flutter Constraint

    E. Jonsson, C. Riso, B. B. Monteiro, A. C. Gray, J. R. R. A. Martins, and C. E. S. Cesnik

    AIAA Journal, 61(7):3045–3061, 2023

    doi:10.2514/1.J061575

    Details

11. Coupled Strip Theory and Finite Element Method for Stability Analysis of Composite Hydrofoils

    G. W. Ng, E. Jonsson, S. He, and J. R. R. A. Martins

    Proceedings of the 6th International Conference on Innovation in High Performance Sailing Yachts and Wind-Assisted Ships, 2023

    Details

12. High-fidelity Aerostructural Optimization with a Geometrically Nonlinear Flutter Constraint

    A. C. Gray, C. Riso, E. Jonsson, J. R. R. A. Martins, and C. E. S. Cesnik

    International Forum on Aeroelasticity and Structural Dynamics (IFASD 2022), 2022

    Details

13. Derivatives for Eigenvalues and Eigenvectors via Analytic Reverse Algorithmic Differentiation

    S. He, E. Jonsson, and J. R. R. A. Martins

    AIAA Journal, 60(4):2654–2667, 2022

    doi:10.2514/1.J060726

    Details

14. Wing Aerodynanmic Shape Optimization with Time Spectral Limit-Cycle Oscillation Adjoint

    S. He, E. Jonsson, and J. R. R. A. Martins

    AIAA Aviation Forum, 2022

    doi:10.2514/6.2022-3357

    Details

15. High-Fidelity Gradient-Based Wing Structural Optimization Including a Geometrically Nonlinear Flutter Constraint

    E. Jonsson, C. Riso, B. B. Monteiro, A. C. Gray, J. R. R. A. Martins, and C. E. S. Cesnik

    AIAA SciTech Forum, 2022

    doi:10.2514/6.2022-2092

    Details

16. Coupled Newton–Krylov Time-Spectral Solver for Flutter and Limit Cycle Oscillation Prediction

    S. He, E. Jonsson, C. A. Mader, and J. R. R. A. Martins

    AIAA Journal, 59(6):2214–2232, 2021

    doi:10.2514/1.J059224

    Details

17. Aerodynamic Shape Optimization with Time Spectral Flutter Adjoint

    S. He, E. Jonsson, C. A. Mader, and J. R. R. A. Martins

    2019 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2019

    doi:10.2514/6.2019-0697

    Details

18. A Coupled Newton–Krylov Time-Spectral Solver for Wing Flutter and LCO Prediction

    S. He, E. Jonsson, C. A. Mader, and J. R. R. A. Martins

    AIAA Aviation Forum, 2019

    doi:10.2514/6.2019-3549

    Details

19. Computational Modeling of Flutter Constraint for High-Fidelity Aerostructural Optimization

    E. Jonsson, C. A. Mader, G. J. Kennedy, and J. R. R. A. Martins

    2019 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2019

    doi:10.2514/6.2019-2354

    Details

20. Flutter and Post-Flutter Constraints in Aircraft Design Optimization

    E. Jonsson, C. Riso, C. A. Lupp, C. E. S. Cesnik, J. R. R. A. Martins, and B. I. Epureanu

    Progress in Aerospace Sciences, 109100537, 2019

    doi:10.1016/j.paerosci.2019.04.001

    Details

21. A Coupled Newton–Krylov Time Spectral Solver for Flutter Prediction

    S. He, E. Jonsson, C. A. Mader, and J. R. R. A. Martins

    2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018

    doi:10.2514/6.2018-2149

    Details

22. Development of Flutter Constraints for High-fidelity Aerostructural Optimization

    E. Jonsson, G. K. W. Kenway, G. J. Kennedy, and J. R. R. A. Martins

    18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2017

    doi:10.2514/6.2017-4455

    Details

23. High-fidelity Multidisciplinary Design Optimization of Aircraft Configurations

    J. R. R. A. Martins, G. K. W. Kenway, D. Burdette, E. Jonsson, and G. J. Kennedy

    (2017–219647), 2017

    Details