Experimental dataset of U-folded falling chain under various openings with high-speed imaging
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Date
2023-02
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Language
en
Pages
5
Series
Data in Brief, Volume 46
Abstract
A folded chain hanged by its two ends in U-shape at the same level with an opening, distance, between its two tips is known as U-folded chain, as studied in Markou et al. (2023). When one of the tips is fixed and the other one is released, the free tip of the U-folded falling chain accelerates faster than gravity, due to momentum conservation. This counterintuitive fact has long excited mechanicians around the globe. In the current paper we present a group of datasets (tip's coordinate timeseries), comprising three different subsets of this variable-mass dynamical system. A series of experiments of a U-folded falling chain of length 1.51m with total mass 31 gm, have been recorded with a high-speed imaging (2000 fps) (Markou et al., 2023). The distance between the tips of the chain (opening) varies throughout the experimental session series: (i) 0.045m, (ii) 0.087m and (iii) 0.128m. Three timeseries of the tip's coordinates (x,y) have been extracted using an edge detector based method, from the recorded high-speed videos.(c) 2023 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )Description
Keywords
U -folded falling chain, Chain dynamics, Variable -mass dynamics, Whip cracking, High-speed imaging
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Citation
Markou, A A, Baroudi, D, Cheng, Q & Bordbar, H 2023, ' Experimental dataset of U-folded falling chain under various openings with high-speed imaging ', Data in Brief, vol. 46, 108913 . https://doi.org/10.1016/j.dib.2023.108913