Influence of Potential Well Depth on the Dual−Coupling Beam Energy Harvester: Modeling and Experimental Validation

Energies, Journal Year: 2025, Volume and Issue: 18(8), P. 1984 - 1984

Published: April 12, 2025

This paper presents an investigation into the influence of varying potential well depths on performance a dual−coupled beam energy harvester (DEH). Firstly, three were established with different polynomial coefficients nonlinear restoring force and analyzed in simulation. Numerical results revealed that whether initial depth is shallow or not, optimal power output can be attained when stiffness coupling spring half monostable−to−bistable stiffness, which was also validated by experiment. Specifically, at deeper 0.64 mJ, system demonstrated superior conversion capabilities. Compared to traditional BEH LEH, RMS voltage Beam 1 total DEH increased 103.06% 49.6%, respectively. The 16.4% 0.9 mJ. In addition, regardless depth, always achieve operating bandwidth near transition region.

Language: Английский

Coupled thermo-electric-magnetic-elastic strongly nonlinear energy harvesting and dynamic analysis from multi-source excitations

International Journal of Non-Linear Mechanics, Journal Year: 2025, Volume and Issue: unknown, P. 105131 - 105131

Published: April 1, 2025

Language: Английский