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Effect of pregnancy-induced mass gain and footwear on postural stability
(2021-05)
Pregnancy induces tremendous changes in the body, which increases the risk of falling. Falls are rarely as costly as when they happen during pregnancy, leading to tremendous healthcare, emotional, and societal costs. More ...
Safety-aware model-based reinforcement learning using barrier transformation
(2021-05)
The ability to learn and execute optimal control policies safely is critical to the realization of complex autonomy, especially where task restarts are not available and/or when the systems are safety-critical. Safety ...
Empirical indicated loss analysis of a semi-hermetic light-commercial spool compressor
(2021-05)
An analysis of the indicated losses is presented for a semi-hermetic, light-commercial, prototype, spool compressor. The spool compressor prototype was instrumented with five high-speed pressure sensors, three in the ...
Design and analysis of Bellwether: A flying wing featuring the bell-shaped spanload
(2021-05)
This body of work details the design and analysis, as well as discussion of requirements for eventual fabrication and flight testing, of a flying-wing aircraft. The design presented is focused primarily on matching the ...
Modeling and failure analysis of composite I-beams for UAV wing spar design
(2021-05)
In unmanned aerial systems (UAS), the composite I-beam using carbon fiber caps and a cross-grain balsa shear web is often used for the main spar. This manufacturing method is underdeveloped in analysis causing engineers ...
Mobile ground test rig for evaluating small-scale turbojet in-flight performance and start reliability
(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 ...
Effects of electrode material on electrode erosion of electrical discharge machining drill
(2021-05)
This paper presents an experimental investigation of the effects of electrode material and workpiece material on electrode wear and performance of a handheld electrical discharge machining drill. In the aerospace maintenance, ...
Mechanical characterization of heterogeneous hyperelastic membrane using inverse methods
(2021-12)
Many soft biological tissues are heterogeneous, having different properties at different locations. Characterizing these tissues is very important for virtually testing potential medical technologies or protocols. Some ...
Multi-insect visual tracking and system identification techniques for inflight feedback interaction analysis
(2021-07)
Individual insects flying in crowded assemblies perform complex aerial maneuvers by small changes in their wing motions. To understand the individual feedback rules that permit these fast, adaptive behaviors in group flight, ...
Investigation of lightweight concepts for low-frequency performance enhancement in acoustic liners
(2021-05)
Acoustic liners are extensively used to reduce noise emitted by aircraft engines. However, conventional acoustic liners are largely ineffective for low-frequency noise content (<~1000 Hz) due to impractical mass and volume ...