Fig. 1. Structure diagram of energy harvester

Fig. 2. Output voltage waveform

Fig. 3. Working process of the energy harvester wIth different wind speeds

Fig. 4. Geometric model and flow field setting of energy harvester

Fig. 5. Velocity distribution and pressure contour cloud map of wind field under different variables

Fig. 6. Output voltage waveform diagram with windward angle θ and elastic wing thickness e as variables respectively

Fig. 7. Test prototype and test system

Fig. 8. Effect of wind speed on output voltage and waveform of the energy harvester

Fig. 9. Relation curve between output voltage and input wind speed when the windward angle θ is different

Fig. 10. Influence of windward angle θ on vibration velocity， frequency locking velocity， drop velocity and constant amplitude voltage

Fig. 11. Relation curve between output voltage and input wind speed when elastic wing thickness e is different

Fig. 12. Influence of elastic wing thickness e on vibration velocity， frequency locking velocity， reduction velocity and constant amplitude voltage

Fig. 13. Relation curve between output power and load resistance when windward angle θ is different