Resonant wingbeat tuning circuit using strain-rate feedback for ornithoptic micro aerial vehicles

摘要

A resonant wingbeat tuning circuit automatically tunes the frequency of an actuating input to the resonant frequency of a flexible wing structure. Through the use of feedback control, the circuit produces the maximum flapping amplitude of a mechanical ornithoptic system, tracking the resonant frequency of the vibratory flapping apparatus as it varies in response to change in flight condition, ambient pressure, or incurred wing damage.