Dataset of contact parameters and hysteresis loops from a round robin test for nonlinear dynamic analysis
Description
This dataset is described in the data article [1] and presents friction hysteresis loops and contact parameters measured during the round robin test of the original research article [2]. Friction forces and tangential relative displacements for each specimen pair are stored as hysteresis raw data. Each hysteresis loop was post-processed to extract friction coefficient, tangential contact stiffness and energy dissipated, whose evolution with wear was thus obtained and stored as well. Matlab codes for post-processing and plotting data are included too. The dataset can be used by researchers as a benchmark to validate theoretical models or numerical simulations of friction hysteresis models and wear mechanisms, and also to study the physics of friction hysteresis and its contact parameters. This high-frequency friction data can also be used as input in models for nonlinear dynamics applications as well as to provide information on the contact measurement uncertainty under high-frequency reciprocating motion. This data can also be used as a training set for machine learning applications or data-driven models, as well as supporting grant applications. References [1] Fantetti A., Botto D., Schwingshackl C., Zucca S., Experimental dataset from a round robin test of contact parameters and hysteresis loops for nonlinear dynamic analysis, Data in Brief, 2024, submitted. [2] Fantetti A., Botto D., Zucca S., Schwingshackl C., Guidelines to use input contact parameters for nonlinear dynamic analysis of jointed structures: Results of a round robin test, Tribology International, 2023. https://doi.org/10.1016/j.triboint.2023.109158
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Steps to reproduce
Steel specimen pairs were tested under high-frequency reciprocating motion from the two different high-frequency friction rigs built in-house in the Dynamics Group at Imperial College London and in the AERMEC Group at Politecnico di Torino. Laser doppler vibrometers were used to record the velocity of the reciprocating motion of the specimens, and static and dynamic force transducers were used to record forces. The recorded hysteresis loops were post-processed with ad-hoc MATLAB® scripts to obtain values of friction coefficients and tangential contact stiffness from the hysteresis loops, and also the energy dissipated during the tests. More details in: [1] Fantetti A., Botto D., Schwingshackl C., Zucca S., Experimental dataset from a round robin test of contact parameters and hysteresis loops for nonlinear dynamic analysis, Data in Brief, 2024, submitted. [2] Fantetti A., Botto D., Zucca S., Schwingshackl C., Guidelines to use input contact parameters for nonlinear dynamic analysis of jointed structures: Results of a round robin test, Tribology International, 2023. https://doi.org/10.1016/j.triboint.2023.109158
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Funding
European Commission
721865