Millisecond model updating for structures experiencing unmodeled high-rate dynamic events

A Downey, J Hong, J Dodson, M Carroll… - … Systems and Signal …, 2020 - Elsevier
Real-time control of next-generation active structures that experience unmodeled high-rate
dynamic events require an up-to-date numerical model of the structural system. Examples of …

Nonlinear parameter identification of a mechanical interface based on primary wave scattering

KJ Moore, M Kurt, M Eriten, JC Dodson, JR Foley… - Experimental …, 2017 - Springer
We study stress-wave propagation in an impulsively forced split Hopkinson bar system
incorporating a threaded interface. We first consider only primary transmission and reflection …

Dynamic interactions between two axially aligned threaded joints undergoing loosening

S Aldana, KJ Moore - Journal of Sound and Vibration, 2022 - Elsevier
Maintaining effective preload in bolted joints is critical for ensuring long-term performance
and safety throughout the operation of any assembled structure, vehicle, or machine. The …

A reduced-order model for loosening of bolted joints subjected to axial shock excitation

KJ Moore - Journal of Applied Mechanics, 2019 - asmedigitalcollection.asme.org
Maintaining preload in bolted joints is critical for the safe and efficient operation of nearly all
built-up structures. Dynamic loss of preload during operation occurs when sufficient shear …

Optimization of rapid state estimation in structures subjected to high-rate boundary change

J Scheppegrell, AG Moura… - Smart Materials …, 2020 - asmedigitalcollection.asme.org
Many structures are subjected to varying forces, moving boundaries, and other dynamic
conditions. Whether part of a vehicle, building, or active energy mitigation device, data on …

Reduced-order Modeling of Loosening in Bolted Joints and Dynamic Interactions Between Axially Aligned Threaded Joints

S Aldana - 2021 - digitalcommons.unl.edu
Maintaining effective preload in bolted joints is critical for ensuring long-term performance
and safety throughout the operation of any assembled structure. The loosening of bolted …

Delayed comparison error minimization for frequency domain state estimation in structures subjected to high-rate boundary change

J Scheppegrell, A Downey, AG Moura… - Health Monitoring of …, 2021 - spiedigitallibrary.org
Many structural systems, such as aircraft, orbital infrastructure, and energy harvesting
devices, experience dynamic forces along with changing structural boundary conditions …

Subsecond Model Updating for High-Rate Structural Health Monitoring

M Carroll, A Downey, J Dodson, J Hong… - Topics in Modal Analysis …, 2021 - Springer
High-rate monitoring, condition assessment, and control of structural systems experiencing
high-rate dynamics is challenging due to these structures experiencing events of timescales …

Nonlinear system identification of mechanical interfaces based on wave scattering

KJ Moore, M Kurt, M Eriten, DM McFarland… - Dynamics of Coupled …, 2016 - Springer
We study stress wave propagation in two impulsively forced split Hopkinson bar systems:
one with a prestressed interface and one with a frictional interface. We first consider only …