A tristable nonlinear energy sink

Y Zeng, H Ding - International Journal of Mechanical Sciences, 2023 - Elsevier
The tristable characteristics are mostly used in the field of energy harvesting and vibration
isolator, but are rarely devoted to in the field of vibration absorption. In this paper, a tristable …

[HTML][HTML] A multi-stable ultra-low frequency energy harvester using a nonlinear pendulum and piezoelectric transduction for self-powered sensing

H Fu, J Jiang, S Hu, J Rao, S Theodossiades - Mechanical Systems and …, 2023 - Elsevier
This paper presents the design, theoretical modelling and experimental validation of a quad-
stable energy harvester for harnessing ultra-low frequency random motions using a …

A tristable nonlinear energy sink to suppress strong excitation vibration

Y Zeng, H Ding, JC Ji, XJ Jing, LQ Chen - Mechanical Systems and Signal …, 2023 - Elsevier
As well known, the vibration reduction efficiency of the nonlinear energy sink (NES) is poor
under strong excitation. In this paper, a tristable NES (TNES) is proposed. The TNES can …

Mass tuning technique for a broadband piezoelectric energy harvester array

SA Kouritem, MA Al-Moghazy, M Noori… - Mechanical Systems and …, 2022 - Elsevier
Converting the wasted ambient vibration to electric power, using a piezoelectric energy
harvester, is a promising strategy for powering a sensor network for medical and industrial …

Human motion energy harvesting backpack using quasi-zero stiffness mechanism

M Li, X Li, C Gan, J Zeng, L Zhao, H Ding, K Wei… - Energy Conversion and …, 2023 - Elsevier
In this study, a quasi-zero stiffness energy harvesting backpack (QZS-EHB) is proposed. The
bistable quasi-zero stiffness mechanism is constructed by paralleling a pair of positive …

Bionic flutter wing piezoelectric-electromagnetic composite energy harvesting system

F Bo, F Jiwen, Z Jiuchun, L Chong, W Jia… - Energy Conversion and …, 2022 - Elsevier
The bionic structure has great potential in the field of energy harvesting. Inspired by the
fluttering structure of dipteran insects, this paper proposes a novel bionic multi-domain …

Ultra-broadband natural frequency using automatic resonance tuning of energy harvester and deep learning algorithms

SA Kouritem, WA Altabey - Energy Conversion and Management, 2022 - Elsevier
Previous broadband energy harvester techniques met many challenges like output power
with a sharp peak, small enhancement in bandwidth, and large dimensions and weights …

Automatic resonance tuning technique for an ultra-broadband piezoelectric energy harvester

SA Kouritem, MA Bani-Hani, M Beshir… - Energies, 2022 - mdpi.com
The main drawback of energy harvesting using the piezoelectric direct effect is that the
maximum electric power is generated at the fundamental resonance frequency. This can …

An internal resonance piezoelectric energy harvester based on geometrical nonlinearities

Y Fan, Y Zhang, MQ Niu, LQ Chen - Mechanical Systems and Signal …, 2024 - Elsevier
This study investigates the effects of nonlinear modal interactions on a piezoelectric energy
harvester, specifically focusing on the absence of externally induced magnetic …

A novel noise-aided fault feature extraction using stochastic resonance in a nonlinear system and its application

J Yang, Z Wang, Y Guo, T Gong… - IEEE Sensors Journal, 2024 - ieeexplore.ieee.org
The fault features of rolling bearings under time-varying speed conditions (TVSCs) are often
submerged in strong noise. For one thing, the system parameters of stochastic resonance …