Experimental Analysis of a Nonlinear Piecewise Multi-Degrees of Freedom System

The dataset contains the experimental dynamic measurements of a nonlinear Multi-Degree of Freedom System featuring hardening and piecewise stiffness characteristics. The system was studied in different ways: a linear analysis was performed with low-amplitude random excitation while a second nonlinear analysis was performed via stepped sine excitation. The nonlinear analysis was repeated with and without the stoppers (which approximate a piecewise stiffness characteristic) to better understand the nature of the system. All the data are stored in MAT and CSV files which are accessible with MATLAB and Python codes (attached to the dataset).