Date of Award
5-2018
Access Type
Thesis - Open Access
Degree Name
Master of Science in Aerospace Engineering
Department
Graduate Studies
Committee Chair
Dr. Claudia Moreno
First Committee Member
Dr. Hever Moncayo
Second Committee Member
Dr. Bogdan Udrea
Abstract
This thesis presents the system identification of the longitudinal motion of a small unmanned aerial vehicle with flexible characteristics. The unmanned aerial vehicle of study is an off-the-shelf aircraft with limited knowledge about the dynamic model. The first task in obtaining a model for flutter testing is determining the rigid body model. Specifically, this thesis will focus in the development of the aircraft and obtaining the longitudinal rigid body model. This involves the assembly and configuration of the avionics and sensors, performing experiments to determine mass and inertia properties and using software tools for aerodynamic analysis to get preliminary values for the static and dynamic stability derivatives. The next step was to design flight experiments for the purpose of system identification. The system identification focused on obtaining the longitudinal model and available software tools were used to get comparative results. The best model was identified using the parameter identification library which gave a 65% match in the pitch rate and 70% match in the vertical acceleration flight data from a doublet response. The short period mode was identified to have a frequency of 6.01 rad/s and a damping ratio of 0.977.
Scholarly Commons Citation
Hamada, Said S., "Development of a Small Unmanned Aerial Vehicle Longitudinal Model for Future Flutter Testing" (2018). Doctoral Dissertations and Master's Theses. 395.
https://commons.erau.edu/edt/395
