Dataset of measurements for the CEA-beam system subjected to two correlated or uncorrelated broadband random excitations
Description
This dataset pack comprises data to investigate the non-linear dynamic behavior of the beam benchmark structure that is a clamped–clamped steel beam with non-ideal boundary conditions subjected to two broadband correlated random excitations. Experiments have been performed on the CEA-CESTA laboratory. The data provided include output measurements for the nonlinear dynamic behavior of the CEA-beam (i.e., the accelerations amplitudes for the three accelerometers on the beam), as well as the two input correlated forces amplitudes. This data pack is an additional item directly alongside the following paper published in the Elsevier journal: [1] S. Talik, J-J. Sinou, M. Claeys and J-P. Lambelin, Nonlinear vibrations of a beam subjected to two broadband correlated or uncorrelated broadband random excitations - experiments, modeling and simulations, Communications in Nonlinear Science and Numerical Simulation, 106328, 2022. Data description This dataset is provided as supplementary data in a Matlab format *.mat and ASCII format *.txt. The data are provided as follows: there are eight files (eight in a Matlab format *.mat and eight in a ASCII format *.txt) corresponding to two experiments named ‘Experiment1’ and ‘Experiment2’ as described in the related research article [1] and reminded in the following section. Each experiment corresponds to four files corresponding to each multipoint random excitations i.e., to two broadband correlated random excitations in phase (file named ‘Experiment1_InPhase’ or ‘Experiment2_InPhase’), to two broadband correlated random excitations in opposite phase (file named ‘Experiment1_OppositePhase’ or ‘Experiment2_OppositePhase’), to two broadband correlated random excitations in quadrature phase (file named ‘Experiment1_QuadraturePhase’ or ‘Experiment2_QuadraturePhase’) and to two broadband uncorrelated random excitations (file named ‘Experiment1_Uncorrelated’ or ‘Experiment2_Uncorrelated’). Each file is described as follows: there are five columns corresponding to the input frequency (Hz), the Power Spectrum Density of the force of each electrodynamic shakers during experiments for each experiment and each correlation type, and the Power Spectrum Density of accelerations for each accelerometer A1, A5 and A6 during experiments for each experiment and each correlation type.