Nonlinear Dynamics Laboratory

When amplitude changes the story

In nonlinear structures, amplitude changes frequency, mode shape and stability.

We measure, model, and use these effects: nonlinear normal modes, reduced-order models, vibration absorbers, energy harvesters, and engineered structures.

Our research Publications Join the lab

The NLD mark: the solid common to four cylinders

Research

Our research focuses on theoretical, computational, and experimental nonlinear dynamics and vibrations. The central themes are nonlinear modal analysis and experimental characterization of nonlinear normal modes; nonlinear reduced-order modeling and manifold-based reduction; nonlinear system and parameter identification; multivariate signal and time–frequency analysis; and damage diagnosis and prognosis in engineered and natural systems. Current work examines geometry-programmed internal resonance, nonlinear vibration absorption and energy transfer, vibration energy harvesting, and nonlinear mechanical metamaterials. These efforts combine analytical mechanics, nonlinear dynamical-systems theory, numerical continuation, data-driven modeling, and carefully designed experiments to identify mechanisms and physics, construct interpretable reduced-order models, and develop practical methods for prediction, control, and structural-health assessment.

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