Real-Time Decision-Making for Smart Structures
The webpage for the High-Rate Monitoring, Damage Detection, Structural Prognostics, and Reactions Working Group can be found here.Real-Time Decision-Making for Structures Experiencing High-Rate Dynamics
Mission-critical structures that experience high-rate dynamics include hypersonic vehicles, space crafts, ballistics packages, and active blast mitigation. Enabling real-time decision-making for these structures will increase mission success rates by increasing the structure’s survivability, providing on-time guidance corrections, and adopting the mission goals/outcome to changing conditions. High-rate dynamic events are uniquely characterized by 1) large uncertainties in external loads; 2) high levels of nonstationarities and heavy disturbances; and 3) generation of unmodeled dynamics from changes in system configuration. RTDM for mission-critical structures is a very complex task that requires successful on-time structural health monitoring (SHM), localized condition assessment, prognostics, and decision-making protocols. In this research the ARTS-LAB is undertaking exploratory investigations and developing algorithms and methodologies that will enable RTDM for mission-critical structural systems that experience high-rate dynamics, therefore, increasing the robustness and safety of these systems.
Selected Publications
Ishrat Singh, Philip Conrad, Puja Chowdhury, Jason D. Bakos, Austin Downey. "Real-time Forecasting of Vibrations with Nonstationarities." 9th International Modal Analysis Conference (IMAC XXXIX) , Feb 2021.
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Claire Rae Drnek, "Local Eigenvalue Modification Procedure for Real-time Model Updating of Structures Experiencing High-rate Dynamic Events." University of South Carolina, 2020, University of South Carolina Graduate Theses and Dissertations.
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Austin Downey, Jonathan Hong, Jacob Dodson, Michael Carroll, and James Scheppegrell, "Millisecond model updating for structures experiencing unmodeled high-rate dynamic events." Mechanical Systems and Signal Processing, vol. 138, 2020, p. 106551, doi:10.1016/j.ymssp.2019.106551. PDF link BibTeX
Jonathan Hong, Jacob Dodson, Simon Laflamme, and Austin Downey, "Transverse Vibration of Clamped-pinned-free Beam With Mass at Free End." Applied Sciences, vol. 9, no. 15, 2019, p. 2996, doi:10.3390/app9152996. PDF link BibTeX