UAV research and development

Francisco cordova de la cruz

Master of Engineering (MEng) in Aerospace Science and Engineering
University of Toronto

Research

Goal

  • Design and build a cheap, light and portable UAV with fewer number of components compared to a Quadrotor.
  • Design a tail mechanism to stabilize yaw that can be reused later for a VTOL design.

Results

  • Flight time: ~25 min.
  • Stable yaw control.
  • UAV parts were 3D printed for under 50 CAD.
  • UAV can be folded and packed.

Build time end to end: 2 months.

Goal

  • Design and 3D print a lightweight and shock resistant Quadrotor.
  • Design a UAV that serves as a platform for the development of autonomous aerial applications.

Results

  • The Quadrotor was 3D printed using Carbon-Fiber-reinforced-Nylon filament. Its low density allowed the drone to be highly impact resistant as I could verify on multiple crash tests.
  • ROS scripts were developed and successfully controled the UAV for takeoff, waypoint and landing missions.

Build time end to end: 1.5 months.

Goal

  • Use Topology Optimization to design a lightweight frame that can be easily converted from Octorotor to Quadrotor depending on the mission.
  • The Octorotor should be able to lift a maximum takeoff weight of 25kg.

Results

  • The final design of the Quadrotor is 0.4 kg less than the DJI Matrice 200 drone and the Octorotor is 0.8kg less than the DJI Agras MG-1, which are comparable drones in the industry.
  • Finite element analysis shows that the safety factor of the octorotor is 1.42 with the maximum load of 25 kg, which matches the NASA recommended safety factor for aerial vehicles.
  • The design shows that the UAV can easily be converted from Octorotor to Quadrotor by removing its arms.

Design Time: 3 months.

MORPHING DRONE

  • Assemble the prototype.
  • Test the functionality of both configurations: Octorotor and Quadrotor.

AUTONOMY

  • Develop AI based precision landing.
  • Build a robust collision avoidance system

VOTL UAV

  • Design a vertical take-off and landing (VTOL) UAV.
  • Improve its flight time by using hydrogen fuel cells.

Results

(Time to play)

Validation

TRICOPTER

QUADCOPTER

About me

Francisco Córdova De La Cruz

Hi! My name is Francisco Córdova. I have a Master's degree in Aerospace Science and Engineering at the University of Toronto (June 2021) with a GPA of 3.8/4.

I have extensive experience building Aerial Robots end to end: coming up with their mechanical and electronic design, 3D printing them, assembling and flying them. I received the Emphasis in Aerial Robotics by the Centre for Aerial Robotics Research and Education (CARRE) in partnership with the University of Toronto after graduation. The emphasis focuses on integrated research and development on aerial robotics systems, from design to autonomy.

What I do

3D CAD DESIGN

  • CATIA V5
  • SOLIDWORKS
  • AutoCAD
  • ANSYS - Design Modeler

Topology Optimization

  • Altair Inspire

Finite Element Analysis

  • ANSYS - Static Structural

Computational fluid dynamics (CFD)

  • ANSYS Fluent

Additive Manufacture (3D Printing)

  • Fused Deposition Modeling (FDM)
  • Stereolithography (SLA)

Composites

CNC Machining

Metal Casting

Programming Languages

  • Python
  • C++
  • MATLAB
  • Java

Other

  • Robot Operating System (ROS)
  • Gazebo