Browsing by Author "Gaeta, Richard J."
Now showing items 1-7 of 7
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Acoustic Characterization of a Multi-Rotor SUAS as a First Step Towards Detection and Identification via Acoustic Signature
Feight, Jordan Ambrose (2017-07-01)In this study, the noise produced by a multi-rotor aircraft is recorded and characterized with the main goal to understand the signature for the use of detection and identification. The need for this technology spawns from ... -
Closed cycle propulsion for small unmanned aircraft
Hays, Thomas Chadwick (2015-07)This study evaluates the merit of closed cycle propulsion systems for use in unmanned systems. The complexity and added weight of closed cycle engines is offset by benefits in high altitude performance, operation in polluted ... -
Development of Lightweight, Compact, Structurally-integrated Acoustic Liners for Broadband Low-frequency Noise Mitigation
Chambers, Andrew Thomas (2017-05-01)Airborne noise with a low dominant frequency content (<~500 Hz) has detrimental effects in many applications, but is as yet beyond the scope of conventional acoustic noise mitigation techniques using liners, foams or ... -
Investigation of SOLIDWORKS Flow Simulation as a Valid Tool for Analyzing Airfoil Performance Characteristics in Low Reynolds Number Flows
Wallace, Joseph Scott (2019-05-01)The majority of unmanned aerial vehicles active currently and projected to be active in the future, operate within a low Reynolds number flow regime due to their size and flight envelope. As their popularity and applicability ... -
Low-frequency Acoustic Noise Mitigation Characteristics of Metamaterials-inspired Vibro-impact Structures
Rekhy, Anuj (2016-12-01)Acoustic absorbers like foams, fiberglass or liners have been used commonly in structures for infrastructural, industrial, automotive and aerospace applications to mitigate noise. However, these conventional materials have ... -
Mobile ground test rig for evaluating small-scale turbojet in-flight performance and start reliability
Swart, Colton Ray (2021-05)This paper presents the design and analysis of a mobile ground test rig for small-scale turbojet engines to simulate in-flight start reliability for design changes aimed at increasing the performance of the engine. One of ... -
Portable Recovery System for an Unmanned Aircraft with a Straight Wing and a Tractor Propeller
Delano, Brian A. (2019-07)The recovery system development effort for an unmanned aircraft (UA) has been documented and examined. The development effort existed to satisfy a customer's need to recover an 80 lb aircraft on unimproved terrain. The ...