# Research on Acoustic Signature Optimization for Bioinspired Flapping-Wing Micro Air Vehicles

- Source: arXiv cs.RO
- Published: 2026-10-28T04:00:00.000Z
- RoboHot: https://robohot.news/en/items/de4z6rcy0l9jjbs8ak9ngoqbh
- Original: https://arxiv.org/abs/2610.37190

## Summary

This paper investigates two passive geometric approaches to reduce the acoustic signature of a flapping membrane wing and validates them on an exemplary wing. After optimizing the venation layout based on a dynamic snap-through model of the membrane wing, experiments measured a reduction of up to 8 dB in the stroke-reversal snap noise; an additive trailing-edge fringe inspired by hummingbird feathers further reduced the broadband swoosh by 3–4 dB without loss of lift. The paper notes that engineered wings are 15–30 dB louder than the animals they imitate.