A. James Clark School of Engineering

Permanent URI for this communityhttp://hdl.handle.net/1903/1654

The collections in this community comprise faculty research works, as well as graduate theses and dissertations.

Browse

Filters

2018 - 201912020 - 20221

Settings

Subject: search.filters.subject.Drone

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Revolutionary Flight Vehicle Based on Leonardo da Vinci Aerial Screw: A Paradigm Shift in VTOL Technology
    (2022) Prete, Austin Christopher; Chopra, Inderjit; Aerospace Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Aerial screws are rotors that consist of continuous large solidity single surface blades, which are able to provide significant thrust and control authority at increased power consumption when compared to traditional rotor blades. By leveraging a unique bound tip vortex, also observed in delta-wings, aerial screws are able to attain figure of merit values nearing 0.7 or higher, comparable to a modern rotorcraft. To prove the function of aerial screws, physical models were fabricated and flight tested. The primary objective of this paper is to explore the performance of a 6-in (0.152 m) diameter aerial screw and compare its performance with a 6-in (0.152 m) diameter traditional rotor, to demonstrate its feasibility in a quadrotor configuration and to show its efficiency as determined in the student designs from the 2019-2020 VFS student design competition.
  • Thumbnail Image
    Item
    MICRO AIR VEHICLE SCALE GUST-WING INTERACTION IN A WIND TUNNEL
    (2018) Smith, Zachary Francis; Jones, Anya R; Hrynuk, John T; Aerospace Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Studying isolated gust effects on simple airfoil models in a controlled environment is a necessity to further the development of MAV gust response and control laws. This work describes the creation of a vertical gust generator in a low speed, low turbulence wind tunnel through the use of an actuated fan placed below the tunnel and ducted through its floor. Gusts of up to 40% of the freestream velocity were created. Characterization of the gust generator is shown, and its interaction with a stationary wing at several angles of attack is evaluated. The actuated gust profile is also compared to that of a pitched wing in a gust-less environment with many visible similarities.