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Found 5 papers, 0 papers with code
Experimental analysis of the TRC benchmark system
Amplitude-dependent modal data was obtained from phase resonance and response controlled tests.
Robust and fast backbone tracking via phase-locked loops
For phase detection, an adaptive filter based on the LMS algorithm is used, which is shown to be superior to the synchronous demodulation commonly used.
Nonlinear damping quantification from phase-resonant tests under base excitation
In the case of shaker-stinger excitation, the applied excitation force is commonly measured in order to quantify the amplitude-dependent modal damping ratio from the phase-resonant test data.
Nonlinear modal testing of damped structures: Velocity feedback vs. phase resonance
In this work, an alternative approach to isolate a nonlinear mode is developed and analyzed: velocity feedback.
Experimental assessment of polynomial nonlinear state-space and nonlinear-mode models for near-resonant vibrations
The second methodology exploits uncontrolled experiments with broadband random inputs to build polynomial nonlinear state-space models using advanced system identification tools.
