Tribomechadynamics 2023
Bioscience Research Collaborative, Room 282, Rice University
6500 Main St, Houston, TX
August 2-4, 2023
Wednesday, August 2nd
9:00 am Conference Welcome Address
9:30 – 10:30 am Modeling Jointed Structures Technical Session
“Frequency response variability in friction-damped structures due to non-unique residual tractions: Obtaining conservative bounds using a Nonlinear-Mode-based approach,” by Erhan Ferhatoglu, Johann Groß, and Malte Krack
“Modeling Discrete Joints at Various Preloads with Iwan Elements,” by Matthew S. Allen, Carson Wynn, Cameron Stoker, Jacob Capito, and Sam Clawson
10:30 – 11:00 am Coffee Break
11:00 am – 12:00 pm Junior Keynote
“Mechanics of Loosening Bolts and Reduced-order Modeling,” by Keegan Moore
12:00 – 1:00 pm Lunch
1:00 – 2:30 pm Panel Discussion: “What Keeps Industry Up at Night? Upcoming Challenges in Jointed Structures”
Joel Sills, National Aeronautics and Space Administration, TX, USA
Dan Brown, Atomic Weapon Establishment, UK
Evan Saunders, Sandia National Laboratories, NM, USA
Trevor Jerome, Naval Surface Warfare Center, MD, USA
2:30 – 3:00 pm Coffee Break
3:00 – 4:00 pm Jointed Structures Experiments Technical Session
“Improving Sample Gripping For The Characterisation Of Dynamic Material Properties,” by Shabarish Sriraman, Hugh Goyder, Daniel Brown, and Phil Ind
“Experimental investigation of damping behaviour in under-platform dampers,” by Matti Mitropoulos and David Nowell
6:00 pm – TBD Informal Conference Dinner (not covered by registration)
Thursday, August 3rd
9:00 – 10:30 am Tribomechadynamics Research Camp Presentations Technical Session
“Effects of Non-Unique Residual Traction on the Non-Repeatability of the Dynamics of Jointed Structures,” by Arati Bhattu, Gianmarco Zara, Yi-Chun Lo, Erhan Ferhatoglu, Matthew Brake, and Malte Krack
“Quantitative Measurements with Phase-Based Motion Magnification for Nonlinear Structures,” by Cengizhan Taslicay, Serena Occhipinti, Victor Clerc, Jessica Herbert, Celso do Cabo, Zhu Mao, Christoph Schwingshackl, and Matthew Brake
“On the use of adaptive chirp mode decomposition for modal coupling,” by Alexandre Spits, Michael Lengger, Sina Safari, Josh Blackham, JP Noel, Matt Allen, and Matthew Brake
“Nonlinear Model Selection using Multiple Data Sets for Structures with Bolted Joints,” by Josh Blackham, Sina Safari, Alexandre Spits, Michael Lengger, JP Noel, Matt Allen, and Matthew Brake
10:30 – 11:00 am Coffee Break
11:00 am – 12:00 pm Student Paper Competition Talk and Award Presentation
“A New Methodology for Leveraging Low-Frequency Stereo-Camera Systems in High-Frequency Nonlinear Vibration Analysis,” by Serena Occhipinti, Paolo Neri, Christian Maria Firrone, and Daniele Botto
12:00 – 1:30 pm Lunch
1:30 – 2:30 pm Contact Mechanics in Jointed Structures Technical Session
“Exploring Single Asperity Effects in Contact Mechanics: A Finite Element Analysis of Isolated Roughness and Influential Parameters,” by Cengizhan Taslicay and Matthew R.W. Brake
“Modelling of under-platform dampers in gas turbines,” by Myles Kelly and David Nowell
2:30 – 3:00 pm Coffee Break
3:00 – 4:30 pm Tribomechadynamics Debate: “In nonlinear system identification, what does the backbone response of a structure even mean?”
Matthew Brake, Rice University, TX, USA
Matthew Allen, Brigham Young University, UT, USA
Christoph Schwingshackl, Imperial College London, UK
7:00 pm – TBD Student Social Competition at Valhalla
“Using AI for Research Publications”
Friday, August 4th
9:00 – 10:30 am Nonlinear System Identification Technical Session
“Preliminary investigation of Amplitude-dependent Modal Parameters Idenfication on Structures with close natural frequencies,” by Sheng-Wei Tseng, Hugh Goyder, and Yum Ji Chan
“Unscented Kalman filter based sparsity-promoting algorithm using novel selective thresholding and penalty-based model selection for system identification of non-linear dynamic systems,” by Ashish Pal and Satish Nagarajaiah
“Determining differential equations from measured decay responses for nonlinear systems,” by Hugh Goyder
10:30 – 11:00 am Coffee Break
11:00 am – 12:00 pm Senior Keynote
“Multiphysics Modeling of the Resistance across Rough Lubricated Contacts,” by Robert Jackson
12:00 – 1:00 pm Lunch
1:00 – 2:30 pm Ultrasonics and Piezoelectrics for Use in Studying Jointed Structures Technical Session
“Roving Ultrasound Test for In-situ Contact Stiffness Measurement,” by Drithi Shetty, Risto Djishev, Jonah Wagner, and Matthew Brake
“Ultrasound Measurements to Monitor the Contact Condition in a Steel-to-Steel Sliding Joint,” by Tong Wei, Alfredo Fantetti, Frederic B. Cegla and Christoph W. Schwingshackl
“Bolt connection looseness monitoring using piezoceramic transducers,” by Gangbing Song
2:30 – 3:00 pm Coffee Break
3:00 – 4:30 pm Nonlinear Dynamics Technical Session
“Tracking Superharmonic Resonances in Frictional Systems,” by Justin H. Porter and Matthew R. W. Brake
“Exploring nonlinear systems on the complex plane by looking into the forbidden zone,” by Hugh Goyder
“Machine learning for event detection in non-smooth initial value problems,” by Brian Evan Saunders, Andrew Steyer, and Robert J. Kuether