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http://dx.doi.org/10.5762/KAIS.2019.20.5.627

A Collision Simulation Study on the Structural Stability for a Programmable Drone  

Kim, Myung-Il (Korea Institute of Science and Technology Information)
Jung, Dae-Yong (Korea Institute of Science and Technology Information)
Kim, Su-Min (DNDE, INC.)
Lee, Jin-Kyu (KoreaDroneCopter, INC)
Choi, Mun-Hyun (KoreaDroneCopter, INC)
Kim, Ho-Yoon (Korea Institute of Science and Technology Information)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.5, 2019 , pp. 627-635 More about this Journal
Abstract
A programmable drone is a drone developed not only to experience the basic principles of flight but also to control drones through Arduino-based programming. Due to the nature of the training drones, the main users are students who are inexperienced in controlling the drones, which often cause frequent collisions with external objects, resulting in high damage to the drones' frame. In this study, the structural stability of the drone was evaluated by means of a structural dynamics based collision simulation for educational drone frame. Collision simulations were performed on three cases according to the impact angle of $0^{\circ}$, $+15^{\circ}$ and $-15^{\circ}$, using an analytical model with approximately 240,000 tetrahedron elements. Using ANSYS LS-DYNA, which provides excellent functions for the simulation of the dynamic behavior of three-dimensional structures, the stress distribution and strain generated on the drone upper, the drone lower, and the ring assembly were analyzed when the drones collided against the wall at a rate of 4 m/s. Safety factors resulting from the equivalent stress and the yield strain were calculated in the range of 0.72 to 2.64 and 1.72 to 26.67, respectively. To ensure structural stability for areas where stress exceeds yield strain and ultimate strain according to material properties, the design reinforcement is presented.
Keywords
Drone; Collision Simulation; Structural Sbility; Equivalent Stress; Strain;
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