Bird-Inspired Nonlinear Oscillator with Triboelectric Nanogenerator for Vibration Control and Energy Harvesting

A bird-inspired nonlinear oscillator (BINO) is proposed for low-frequency vibration control and energy harvesting of bridges. By integrating the spring into the oscillator, the space utilization rate and reliability are further improved. Theoretical analysis and experimental results show that BINO with triboelectric nanogenerator damper (BINO-TENGD) with quasi-zero stiffness (QZS) has excellent low-frequency vibration isolation performance and stable output voltage. In addition, BINO-TENG can produce resonance phenomenon in the frequency range of 3-8 Hz under bistable condition, and obtain high output. Finally, BINO-TENGD under QZS condition is applied to the beam bridge, and the results show that adding BINO-TENGD to the beam bridge is beneficial to suppress vibration. Therefore, BINO has a certain application prospect in the fields of bridge low-frequency vibration control, vibration detection and energy harvesting.