Optimal Hilbert transform parameter identification of bistable structures

Q Liu, Y Zhang, Z Hou, Y Qiao, J Cao, Y Lei - Nonlinear Dynamics, 2023 - Springer
Nonlinear bistable structures have received significant attention in the field of energy
harvesting and vibration absorption. Obtaining their precise nonlinear restoring force is of …

Interpretable sparse identification of a bistable nonlinear energy sink

Q Liu, J Cao, Y Zhang, Z Zhao, G Kerschen… - Mechanical Systems and …, 2023 - Elsevier
Bistable nonlinear energy sinks have received great interest due to their efficient broad-
band targeted energy transfer over a wide range of input energy levels. The precise …

A hybrid linear dynamic absorber and nonlinear energy sink for broadband absorption of a circular ring

ZQ Lu, XY Chen, DD Tan, FY Zhang, H Ding… - Nonlinear …, 2024 - Springer
Nonlinear energy sinks (NES) have been shown to have broadband absorption for multiple
modes. Furthermore, linear dynamic absorbers (LDA) often only operate effectively within …

Nonlinear continuous‐time system identification by linearization around a time‐varying setpoint

MG Sharabiany, S Ebrahimkhani… - International Journal of …, 2024 - Wiley Online Library
This article addresses the identification of unknown nonlinear continuous‐time systems
through a linear time‐varying (LTV) approximation as a starting point. The mathematical …

[HTML][HTML] Nonlinear characteristics identification of an impact oscillator with a one-sided elastic constraint

B Tian, S Yin, Y Liu, JL Monsalve - Journal of Sound and Vibration, 2024 - Elsevier
Impacting systems are widely used in many engineering applications, such as self-propelled
robots, energy harvesting and percussive drilling, which exhibit rich and complex nonlinear …

Stiffness identification of beam structures with elastic foundations through the global mode method and time-domain nonlinear subspace method

Y Yao, ZS Ma, Q Ding, J Han, X Sui, B Liu - Nonlinear Dynamics, 2024 - Springer
Dynamic modeling for beam structures with elastic foundations has received considerable
attention, as foundations may affect the dynamic characteristics of beam structures …

Global dynamic analysis of a typical tristable piezoelectric energy harvester for performance enhancement

D Cui, H Shang - Chaos, Solitons & Fractals, 2024 - Elsevier
Tristable piezoelectric energy harvesters (TPEHs) have been widely studied in recent years.
Previous works have illustrated the persistent coexistence of high-energy and low-energy …

On efficiency and accuracy of sparse identification of bistable nonlinear energy sink chains

Q Liu, Q Li, D Jiang - International Journal of Dynamics and Control, 2024 - Springer
Bistable nonlinear energy sinks have been widely studied in energy harvesting and
vibration absorption systems. The precise identification of local bistable nonlinear stiffness …

Physics-informed sparse identification of bistable structures

Q Liu, Z Zhao, Y Zhang, J Wang… - Journal of Physics D …, 2022 - iopscience.iop.org
The design of bistable structures is a hot topic in the last decade due to its wide application
in smart actuators, energy harvesters, flexible robotics, etc. The characterization of the …

Integrating automatic order determination with response prediction error minimization for nonlinear subspace identification in structural dynamics

D Jiang, A Li, Y Wang, S Xie, Z Cao, R Zhu - Nonlinear Dynamics, 2024 - Springer
The singular value decomposition order determination method used in nonlinear subspace
identification may encounter challenges due to the noise in signals, resulting in the omission …