Dynamics and Control of a Collaborative and Separating Descent of Samara Autorotating Wings
Shane Kyi Hla Win, Luke Soe Thura Win, Danial Sufiyan Bin Shaiful, Gim Song Soh, Shaohui Foong
Abstract
To deliver lightweight sensor payloads to disaster-struck areas by means of an aerial deployment, a novel bio-inspired method capitalizing on autorotation to slow down vertical descent rate is proposed. This concept is illustrated using the samara autorotating wing (SAW) platform, which features a unique collaborative mode where multiple individual units are attached mechanically together to form a collective rotor hub for increased controllability. This rotor is designed with a simple de-centralized separation mechanism to detach into singular units during flight upon command, catering to different mission profiles. The dynamic models for singular state and collaborative rotor hub state were developed, and free-flight simulations were conducted in different modes including the separation stage and control performance for both states was analyzed. Experiments were set up for increased motion-capture region and free-flight drop tests and separation flights were carried out to verify the simulations. Finally, using a multi-rotor as an aerial launch platform, control performance for the single-winged state was evaluated in real-world conditions.
BibTeX
@inproceedings{ral2019_dynamicsandcontr,
title = {Dynamics and Control of a Collaborative and Separating Descent of Samara Autorotating Wings},
author = {Shane Kyi Hla Win and Luke Soe Thura Win and Danial Sufiyan Bin Shaiful and Gim Song Soh and Shaohui Foong},
booktitle = {RA-L 2019},
year = {2019}
}