DBF 2013 – Mazlatov Summery Article

摘要

This article summarizes the work of a senior design project at the Technion AerospacernFaculty aimed at designing and eventually building a small UAV for the DBFAIAArncompetition. The objective of this year’s competition was to simulate stealth UAV with thernability to carry internal and external payload.rnInitially the competition rules were carefully studied in order to determine the effect of differentrnaircraft aspects on the score. This revealed that focusing on a single design parameter willrnnot yield an overall higher flight score; therefore an optimization process was requiredrnbetween RAC and performance.rnAnother important factor that dictates our design was the requirement to take off within arn30x30 square ft. austere field.rnThe UAV designed and presented in this article has a conventional geometry of main wing,rnand back tail with landing gears. The aircraft’s main structure was based on carbon fiberrntubes, which have the highest strength to weight ratio. The internal payload compartment wasrnbuilt as a separate structure, which was not part of the aircraft body. This specific designrnallowed easy aircraft loading with its third mission payloads. This year’s competition includesrnthree different missions. In each mission the aircraft will be judged by different parameters.rnThe UAV was not designed for high airspeeds, but for high lifting capabilities, aimed atrnmaximizing the team's competition score, as well as allowing it to takeoff within the limits ofrnthe competition rules.rnThe designed aircraft is able to lift 1.36 kg, approximately 34% of its maximum takeoff weight.rnThe airplane’s payload compartment is designed to carry 9 internal rockets, and the wingsrncan carry up to 6 external rockets. The maximum airspeed that can be achieved when flownrnwithout payloads is 24 m/sec, and the cruise speed of this configuration is 20 m/sec.