Research
My research involves developing computational models and analysis methods to investigate aeroelastic phenomena in the next generation of aerospace vehicles, focusing on advancing the understanding of new configurations and supporting their design.
Research Areas
Flight dynamics and nonlinear aeroelasticity of future aircraft designs
Predicting flutter and post-flutter dynamics in nonlinear aeroelastic systems
Integrating geometrically nonlinear effects and dynamic aeroelasticity into optimization
Aeroelastic tailoring for alleviating aircraft loads and improving ride and handling qualities
Active Projects
Whirl Flutter and Stability Analysis for Advanced VTOL Concepts
Funding: U.S. Army, U.S. Navy, and NASA under the Georgia Tech Vertical Lift Research Center of Excellence (VLRCOE)
Role: Co-PI with Carlos Cesnik (U-M), Dates: 2021–2026
Constraining Limit-Cycle Oscillations in Gradient-Based Design Optimization
Funding: Georgia Tech Aerospace Engineering School Fellows Program
Role: PI. Collaborators: Graeme Kennedy (co-PI, GT), Dates: 2023 (Jan–Dec)
Hypersonic Magnetohydrodynamic Actuation for Entry, Descent, and Landing
Funding: Georgia Tech Aerospace Engineering School Fellows Program
Role: co-PI. Collaborators: Alvaro Romero-Calvo (PI, GT) and Joe Oefelein (co-PI, GT), Dates: 2023 (Jan–Dec)
Completed Projects
Geometrically Nonlinear Effects and Dynamic Aeroelasticity in MDO
Funding: Airbus
Role: GT sub-award PI (2022), previously U-M key personnel (2017–2021), Dates: 2017–2022
Aeroelastic Tailoring for Gust Loads and Maneuver Loads
Funding: Airbus
Role: GT sub-award PI (2022), previously U-M key personnel (2017–2021), Dates: 2017–2022
Working Groups
Third Aeroelastic Prediction Workshop, Large Deflection Working Group, 2020–Present [Website][ResearchGate Project]
Journal Articles
(* = co-first authors, ** = mentored student, articles from 2022 are published while a faculty member at Georgia Tech)
Total published articles: 13
2023
Jonsson, Riso, Monteiro, Gray, Martins, and Cesnik, "High-Fidelity Gradient-Based Wing Structural Optimization Including Geometrically Nonlinear Flutter Constraint", AIAA Journal, accepted
Gray, Riso, Jonsson, Martins, and Cesnik, "High-Fidelity Aerostructural Optimization with a Geometrically Nonlinear Flutter Constraint," AIAA Journal, accepted
Riso and Cesnik, "Impact of Low-Order Modeling on Aeroelastic Predictions for Very Flexible Wings," Journal of Aircraft [Link][Preprint][Data]
2022
Riso, Cesnik, and Epureanu, "Estimating Flutter Bifurcation Diagrams Using the State Velocity", AIAA Journal [Link][Preprint]
2021
Riso, Cesnik, and Epureanu, "Output-Based Flutter Bifurcation Forecasting in Nonlinear Fluid-Structural Systems with Multiple Varying Parameters," Journal of Fluids and Structures [Link][Preprint]
2020
Riso*, Ghadami*, Cesnik, and Epureanu, "Data-Driven Forecasting of Postflutter Responses of Geometrically Nonlinear Wings," AIAA Journal [Link][Preprint]
2019
Jonsson, Riso, Lupp, Cesnik, Martins, and Epureanu, "Flutter and Post-Flutter Constraints in Aircraft Design Optimization," Progress in Aerospace Sciences [Link][Preprint]
Mastroddi, Martarelli, Eugeni, and Riso, "Time- and Frequency-Domain Linear Viscoelastic Modeling of Highly Damped Aerospace Structures," Mechanical Systems and Signal Processing [Link]
2018
Riso, Di Vincenzo, Ritter, Cesnik, and Mastroddi, "Nonlinear Aeroelastic Trim of Very Flexible Aircraft Described by Detailed Models," Journal of Aircraft [Link]
Riso, Riccardi, and Mastroddi, "Semi-Analytical Unsteady Aerodynamic Model of a Flexible Thin Airfoil," Journal of Fluids and Structures [Link]
Riso, Fransen, Mastroddi, Coppotelli, Trequattrini, and De Vivo, "Experimental Validation of Solid Rocket Motor Damping Models," CEAS Space Journal [Link]
2017
Saltari**, Riso, De Matteis, and Mastroddi, "Finite-Element-Based Modeling for Flight Dynamics and Aeroelasticity of Flexible Aircraft," Journal of Aircraft [Link]
2016
Riso, Riccardi, and Mastroddi, "Nonlinear Aeroelastic Modeling via Conformal Mapping and Vortex Method for a Flat-Plate Airfoil in Arbitrary Motion," Journal of Fluids and Structures [Link]
Under Review
Riso and Cesnik, "Geometrically Nonlinear Effects in Wing Aeroelastic Dynamics at Large Deflections"
Riso, Cesnik, and Epureanu, "Bifurcation-Diagram-Free Post-Flutter Response Constraint for Design Optimization"
Conference Proceedings
(presenter, ** = mentored student, articles published in and after 2022 are published while a faculty member at Georgia Tech)
Total published articles: 23
2023
Gali**, Goehmann**, and Riso, "Predicting Whirl Flutter Bifurcations Using Pre-Flutter Output Data," AIAA SciTech Forum [Link][Preprint][Recording]
Riso and Cesnik, "Investigation of Geometrically Nonlinear Effects in the Aeroelastic Behavior of a Very Flexible Wing," AIAA SciTech Forum [Link][Preprint][Recording][Data]
Sanghi**, Cesnik, and Riso, "Analysis of Ride Qualities in Transonic High-Aspect-Ratio-Wing Aircraft," AIAA SciTech Forum [Link][Preprint][Recording]
2022
Riso and Cesnik, "Post-Flutter Analysis of the Pazy Wing Geometrically Nonlinear Benchmark Model," International Forum on Aeroelasticity and Structural Dynamics [Preprint][Data]
Sanghi**, Riso, Cesnik, and Vetrano, "Analysis of Ride Qualities in Transonic High-Aspect-Ratio-Wing Aircraft," International Forum on Aeroelasticity and Structural Dynamics [Preprint]
Gray, Riso, Jonsson, Martins, and Cesnik, "High-Fidelity Aerostructural Optimization with a Geometrically Nonlinear Flutter Constraint," International Forum on Aeroelasticity and Structural Dynamics [Preprint]
Riso and Cesnik, "Low-Order Geometrically Nonlinear Aeroelastic Modeling and Analysis of the Pazy Wing Experiment," AIAA SciTech Forum [Link][Preprint][Recording][Data]
Jonsson, Riso, Monteiro, Gray, Martins, and Cesnik, "High-Fidelity Gradient-Based Wing Structural Optimization Including a Geometrically Nonlinear Flutter Constraint," AIAA SciTech Forum [Link][Preprint][Recording]
Sanghi**, Riso, Cesnik, and Vetrano, "Conventional and Unconventional Control Effectors for Load Alleviation in High-Aspect-Ratio-Wing Aircraft," AIAA SciTech Forum [Link][Preprint][Recording]
2021
Riso, Cesnik, Epureanu, and Teufel, "A Post-Flutter Response Constraint for Gradient-Based Aircraft Design Optimization," AIAA AVIATION Forum [Link][Preprint][Recording]
Riso and Cesnik, "Correlations Between UM/NAST Nonlinear Aeroelastic Simulations and the Pre-Pazy Wing Experiment," AIAA SciTech Forum [Link][Preprint][Recording]
2020
Sanghi**, Riso, Cesnik, and Vetrano, "Influence of Aileron Placement on Roll Response of High-Aspect-Ratio-Wing Aircraft," AIAA AVIATION Forum [Link][Preprint]
Riso, Cesnik, and Epureanu, "Model-Free Nonlinear Flutter Forecasting in Fluid-Structural Systems with Multiple Varying Parameters," International Symposium on Flutter and its Application, canceled due to COVID-19 [Preprint]
Riso, Sanghi**, Cesnik, Vetrano, and Teufel, "Parametric Roll Maneuverability Analysis of a High-Aspect-Ratio-Wing Civil Transport Aircraft," AIAA SciTech Forum [Link][Preprint]
Sanghi**, Riso, Cesnik, and Vetrano, "Impact of Control-Surface Flexibility on the Dynamic Response of Flexible Aircraft," AIAA SciTech Forum [Link][Preprint]
2019
Riso, Ghadami, Cesnik, and Epureanu, "Model-Free Forecasting of Limit Cycle Oscillations in Geometrically Nonlinear Wings," International Forum on Aeroelasticity and Structural Dynamics [Link][Preprint]
Eugeni, Mastroddi, Saltari**, and Riso, "Structural Damping Models for Passive Aeroelastic Control," International Forum on Aeroelasticity and Structural Dynamics [Link]
2018
Riso, Fransen, Mastroddi, Coppotelli, Trequattrini, and De Vivo, "Assessment of Grain Damping Models for Finite Element Analysis of Solid Rocket Motors," European Conference on Spacecraft Structures, Materials, and Environmental Testing [Preprint]
Riso, Mastroddi, and Cesnik, "Coupled Flight Dynamics and Aeroelasticity of Very Flexible Aircraft Based on Commercial Finite Element Solvers," AIAA SciTech Forum [Link][Preprint]
2017
Saltari**, Mastroddi, Riso, De Matteis, and Colaianni, "On the Control of Aeroelastic/Flight Dynamic Integrated Stability of Maneuvering Aircraft," International Forum on Aeroelasticity and Structural Dynamics [Link]
Riso, Di Vincenzo, Ritter, Cesnik, and Mastroddi, "A FEM-Based Approach for Nonlinear Aeroelastic Trim of Highly Flexible Aircraft," International Forum on Aeroelasticity and Structural Dynamics [Link]
Riso, Riccardi, and Mastroddi, "Semi-analytical Unsteady Aerodynamic Modeling for a Flexible Thin Airfoil in Arbitrary Motion," International Forum on Aeroelasticity and Structural Dynamics [Link]
2015
Riso, Riccardi, and Mastroddi, "Nonlinear Aeroelastic Modeling via Conformal Mappings for a Typical Section in Arbitrary Motion," International Forum on Aeroelasticity and Structural Dynamics [Preprint]
Other Publications
For a complete list of publications, check out my CV or Google Scholar profile.