Quantum mechanics

Magnetic field

Control (management)

Voltage

Tuned mass damper

Engineering

Harmonic balance

Materials science

Lever

Energy (signal processing)

Vibration

Computer science

Energy harvesting

Acoustics

Mechanical engineering

Physics

Nonlinear system

Artificial intelligence

Composite material

Structural engineering

Magnetostriction

Piezoelectricity

Stiffness

Control theory (sociology)

Mechanics

Electrical engineering

Communications in Nonlinear Science and Numerical Simulation

A closed detached response due to the resonance response interaction has a critical effect on vibration isolation and energy harvesting. In this paper, a promising novel approach by integrating a lever-type nonlinear energy sink (LNES) and a giant magnetostrictive-piezoelectric (GMP) energy harvester (LNES-GMP) for vibration isolation and energy harvesting is investigated. The method of harmonic balance is applied to trace the response and voltage of the system, and numerical results support the harmonic solutions. It can be noted that the occurrence of closed detached resonance response could dramatically increase the voltage of the system. Moreover, the structure of the LNES-GMP, such as the mass, nonlinear stiffness, and fulcrum location may influence the efficiency of vibration isolation and energy harvesting. Lastly, with an appropriate fulcrum location, the performance of the LNES-GMP, which contains less attached mass, is more improved than the traditional NES-GMP.

A lever-enhanced nonlinear energy sink absorber harvesting vibratory energy via giant magnetostrictive-piezoelectricity