Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
The TRChallenge: Experimental Quantification of Nonlinear Modal Parameters and Confrontation with the Predictions
Date
2024-01-01
Author
Bhattu, Arati
Jamia, Nidhal
Hermann, Svenja
Müller, Florian
Scheel, Maren
Özgüven, Hasan Nevzat
Schwingshackl, Christoph
Krack, Malte
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
151
views
0
downloads
Cite This
In recent years, the prediction of the behavior of structures with high-level nonlinearities has been a challenging area of research. In 2021, the Tribomechadynamics Research Challenge was proposed to evaluate the current state of the art in modeling in the community of jointed structures: the task was a blind prediction of the nonlinear dynamic response of a system including a frictional and a geometric nonlinearity. Participants of the challenge were given only the technical drawings, including material and surface specifications required to manufacture and assemble the system and were asked to predict the frequency and damping ratio of the lowest-frequency elastic mode as function of the amplitude. The behavior of the real system was experimentally characterized during the Tribomechadynamics Research Camp 2022. This contribution presents the experimental work performed during the research camp. As the nature of the structure requires a base excitation, two recently developed nonlinear testing techniques have been explored to extract the modal parameters: the response-controlled testing method and the phase-resonant testing method. The results obtained with the different methods are compared and the blind predictions are confronted with the experimental results in order to assess their accuracy.
Subject Keywords
Backbone curve
,
Frictional and geometric nonlinearity
,
Phased-locked-loop
,
Tribomechadynamics
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85175947440&origin=inward
https://hdl.handle.net/11511/108044
DOI
https://doi.org/10.1007/978-3-031-36999-5_18
Conference Name
41st IMAC, A Conference and Exposition on Structural Dynamics, 2023
Collections
Department of Mechanical Engineering, Conference / Seminar
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. Bhattu et al., “The TRChallenge: Experimental Quantification of Nonlinear Modal Parameters and Confrontation with the Predictions,” presented at the 41st IMAC, A Conference and Exposition on Structural Dynamics, 2023, Austin, Amerika Birleşik Devletleri, 2024, Accessed: 00, 2024. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85175947440&origin=inward.