Data from "Experimental study of the unsteady vibration signature for a Sirocco fan unit"

Data Documentation for:"Experimental study of the unsteady vibration signature for a Sirocco fan unit". José González (*), Laura Delgado, Sandra Velarde-Suárez, Jesús Manuel Fernández Oro, Katia María Argüelles Díaz, David Rodríguez, David Méndez (2020).(*) [e-mail]. Fluid Mechanics Area, Department of Energy, University of Oviedo, C/Wifredo Ricart s/n, Gijon, Asturias, 33204, SpainPublished in Journal of Low Frequency Noise, Vibration and Active Control, 0(0), 1-20.https://doi.org/10.1177/1461348419837418 General Information Name of dataset:Data from "Experimental study of the unsteady vibration signature for a Sirocco fan unit" Name of data files in data set:'01_JLFNVAC_temporal.txt''02_JLFNVAC_FFT.txt''03_JLFNVAC_time_signal.txt''04_JLFNVAC_baseline_Q_high_horizontal_acceler.txt''05_JLFNVAC_baseline_Q_high_vertical_acceler.txt''06_JLFNVAC_baseline_Q_low_horizontal_acceler.txt''07_JLFNVAC_baseline_Q_low_vertical_acceler.txt''08_JLFNVAC_baseline_Q_medium_horizontal_acceler.txt''09_JLFNVAC_baseline_Q_medium_vertical_acceler.txt''10_JLFNVAC_obstructed_Q_high_horizontal_acceler.txt''11_JLFNVAC_obstructed_Q_high_vertical_acceler.txt''12_JLFNVAC_obstructed_Q_low_horizontal_acceler.txt''13_JLFNVAC_obstructed_Q_low_vertical_acceler.txt''14_JLFNVAC_obstructed_Q_medium_horizontal_acceler.txt''15_JLFNVAC_obstructed_Q_medium_vertical_acceler.txt''16_JLFNVAC_umbalance_Q_high_horizontal_acceler.txt''17_JLFNVAC_umbalance_Q_high_vertical_acceler.txt''18_JLFNVAC_umbalance_Q_low_horizontal_acceler.txt''19_JLFNVAC_umbalance_Q_low_vertical_acceler.txt''20_JLFNVAC_umbalance_Q_medium_horizontal_acceler.txt''21_JLFNVAC_umbalance_Q_medium_vertical_acceler.txt' Dataset language:English Date the data set was last modified:30/06/2019 Funder:The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The financial support from the “Ministerio de Ciencia e Innovacion” (under Projects numbers TRA2007-62708, DPI2011-25419, ENE2017-89965-P and “Tecnologıas ecologicas para el transporte Urbano, ecoTRANS” (CDTI) is alsogratefully acknowledged. The financial support of the Instituto Universitario de Tecnologıa Industrial (IUTA), through projects SV-17-GIJON-1-07 and SV-18-GIJON-1-04 has also helped in the final stages of the present study. How to cite data:Data from [article reference] Methodology for data collection:Vibration data were collected from a Sirocco fan unit using two piezoelectric accelerometers positioned in horizontal and vertical directions. Measurements were taken under normal, unbalanced rotor, and obstructed channel conditions at three different flow rates, and the recorded signals were processed with Fast Fourier Transform (FFT) for subsequent analysis. Data collector(s):Katia María Argüelles DíazJosé González Pérez Date of data collection:01/02/2019 - 30/06/2019 Person to contact with questions:Corresponding author or first autor (see affilations and e-mail in the paper). Data entry:12/11/2025 Software (including version #) used to prepare data set:Matlab 2023bExcel 365 Data processing that was performed:The collected vibration signals were processed using Fast Fourier Transform (FFT) to convert them from the time domain to the frequency domain and identify dominant frequencies. These frequency components were then analyzed through two diagnostic methods: the Purified Orbit Diagram (POD), which combines horizontal and vertical vibration data to visualize orbit patterns, and the Symmetrized Dot Pattern (SDP), which transforms the signals into visual patterns to detect amplitude and frequency variations associated with different fault conditions. Variables:time [s]frequency [Hz]acceleration [m/s^2]flow rate [m^3/s] File Overview:'01_JLFNVAC_temporal.txt', time-domain vibration signal, low flow rate, umbalanced rotor. Columns: time, measured acceleration (normalized with respect to gravity).'02_JLFNVAC_FFT.txt', frequency-domain vibration signal, low flow rate, baseline rotor. Columns: time, normalized vibration amplitude for each frequency.'03_JLFNVAC_time_signal.txt', time-domain vibration signal. Columns: measurement index, measured vibration acceleration values.Horizontal and vertical acceleration signals measured for the Sirocco fan under baseline rotor conditions at high, medium and low flow rates. Columns: time, the vibration acceleration amplitude, scaled by a factor of 1000 for easier visualization.'04_JLFNVAC_baseline_Q_high_horizontal_acceler.txt''05_JLFNVAC_baseline_Q_high_vertical_acceler.txt''06_JLFNVAC_baseline_Q_low_horizontal_acceler.txt''07_JLFNVAC_baseline_Q_low_vertical_acceler.txt''08_JLFNVAC_baseline_Q_medium_horizontal_acceler.txt''09_JLFNVAC_baseline_Q_medium_vertical_acceler.txt'Horizontal and vertical acceleration signals measured for the Sirocco fan under obstructed rotor conditions at high, medium and low flow rates. Columns: time, the vibration acceleration amplitude, scaled by a factor of 1000 for easier visualization.'10_JLFNVAC_obstructed_Q_high_horizontal_acceler.txt''11_JLFNVAC_obstructed_Q_high_vertical_acceler.txt''12_JLFNVAC_obstructed_Q_low_horizontal_acceler.txt''13_JLFNVAC_obstructed_Q_low_vertical_acceler.txt''14_JLFNVAC_obstructed_Q_medium_horizontal_acceler.txt''15_JLFNVAC_obstructed_Q_medium_vertical_acceler.txt'Horizontal and vertical acceleration signals measured for the Sirocco fan under umbalance rotor conditions at high, medium and low flow rates. Columns: time, the vibration acceleration amplitude, scaled by a factor of 1000 for easier visualization.'16_JLFNVAC_umbalance_Q_high_horizontal_acceler.txt''17_JLFNVAC_umbalance_Q_high_vertical_acceler.txt''18_JLFNVAC_umbalance_Q_low_horizontal_acceler.txt''19_JLFNVAC_umbalance_Q_low_vertical_acceler.txt''20_JLFNVAC_umbalance_Q_medium_horizontal_acceler.txt''21_JLFNVAC_umbalance_Q_medium_vertical_acceler.txt'