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The Tribomechadynamics Research Challenge: Confronting Blind Predictions for the Linear and Nonlinear Dynamics of a Novel Jointed Structure with Measurement Results
Date
2023-3-8
Author
Özgüven, Hasan Nevzat
Krack, Malte
Matthew R. W. Braked
Schwingshacklb, Christoph
Grossa, Johann
Hippolda, Patrick
Lasenb, Matias
Dinib, Daniele
Sallesc, Loic
Allene, Matthew S.
Shettyd, Drithi
Paynee , Courtney A.
Willnerg, Kai
Lenggerg, Michael
Khanh , Moheimin Y.
Ortizh, Jonel
Najera-Floresi, David A.
Kuetherh, Robert J.
Milesh, Paul R.
Xuj, Chao
Yangj, Huiyi
Jalalik, Hassan
Taghipourl, Javad
Khodaparastl, Hamed Haddad
Friswelll, Michael I.
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The present article summarizes the submissions to the recently announced Tribomechadynamics Research Challenge. The task was a blind prediction of the vibration behavior of a system comprising a thin plate clamped on two sides via bolted joints. Both geometric and frictional contact nonlinearities are expected to be relevant. Provided were the CAD models and technical drawings of all parts as well as assembly instructions. The main objective was to predict the frequency and damping ratio of the lowest-frequency mode as function of the amplitude. Many different prediction approaches were pursued, ranging from well-known methods to very recently developed ones. After the submission deadline, the system has been fabricated and tested. The aim of this article is to interpret the deviations among the predictions and to confront the predictions with experimental results. This way, we intend to evaluate the current state of the art in modelling and vibration prediction of nonlinear mechanical systems, and to provide directions for future methodological advancements.
Subject Keywords
Friction damping
,
Jointed structures
,
Geometric nonlinearity
,
Nonlinear dynamics
,
Nonlinear modal analysis
URI
https://hdl.handle.net/11511/105215
Journal
Mechanical Systems and Signal Processing
Collections
Department of Mechanical Engineering, Article
Citation Formats
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ACM
APA
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MLA
BibTeX
H. N. Özgüven et al., “The Tribomechadynamics Research Challenge: Confronting Blind Predictions for the Linear and Nonlinear Dynamics of a Novel Jointed Structure with Measurement Results,”
Mechanical Systems and Signal Processing
, 2023, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/105215.