Bench-Scale Observation of Sloshing Amplitude Reduction in the Presence of Static Magnets

Overview.Load-cell-based CG_y measurements for a rectangular acrylic tank (600 mm x 60 mm x 300 mm; water depth h=40 mm) under near-resonant horizontal excitation. Two conditions were tested in a paired design: NO (no magnets) vs YES (static magnets). The first 5 s are discarded; the subsequent 20 s steady window is analyzed. Sampling ~191 Hz. A ferromagnetic plate was kept identical across runs (mounted outside the tank bottom). Contents- raw/ — provided here as two ZIP archives containing 20 CSV files in total (10 NO, 10 YES; ~191 Hz). Typical columns: Time (s), CG_y (mm) (SI units).- figures/ — paper figures (paired P2P/RMS, mean FFT, zoom overlay) plus setup photos/illustrations.- code/ — magnet_paired_analysis.ipynb (reproduces all analyses and plots). Reproducibility.Unzip the raw CSVs, open the notebook, and run all cells. It (i) computes peak-to-peak (P2P) and RMS per run, (ii) performs paired statistics (NO->YES), and (iii) generates mean FFT spectra (Hann window) over [0.2, 2.0] Hz. The notebook auto-detects common time/CG_y column names. License.Data: CC BY 4.0. Code: MIT (notebook included under code/). Version history (changelog)- v2 (this): h=40 mm; 10 paired runs (YES vs NO); standardized column names; updated figures & notebook; neutralized title; 20 s steady window.- v1 (2025-09-09): initial release. Citation.Cite the concept DOI (always resolves to the latest version): 10.5281/zenodo.17088106.For exact replication, also cite this version's DOI (shown on the right after publishing). Keywords.sloshing; center of gravity; CGy; static magnets; damping; FFT; bench-scale; dataset