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Aerospace Engineering Commons™

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Selected Works

2017

Articles 1 - 9 of 9

Full-Text Articles in Aerospace Engineering

Prediction Of Solid Oxide Fuel Cell Performance Using Artificial Neural Network, M. A. Rafe Biswas, Kamwana N. Mwara Oct 2017

Prediction Of Solid Oxide Fuel Cell Performance Using Artificial Neural Network, M. A. Rafe Biswas, Kamwana N. Mwara

M. A. Rafe Biswas

NASA’s Johnson Space Center has recently begun efforts to eventually integrate air-independent Solid Oxide Fuel Cell (SOFC) systems, with landers that can be propelled by LOX-CH4, for long duration missions. Using landers that utilize such propellants, provides the opportunity to use SOFCs as a power option, especially since they are able to process methane into a reactant through fuel reformation. Various lead-up activities, such as hardware testing and computational modelling, have been initiated to assist with this developmental effort.
One modeling approach, currently being explored to predict SOFC behavior, involves the usage of artificial neural networks (ANN). Since SOFC performance …

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Creating An Experimental Learning And Research Driven Spacesuit Lab For Erau, Ryan L. Kobrick, Erik Seedhouse Sep 2017

Creating An Experimental Learning And Research Driven Spacesuit Lab For Erau, Ryan L. Kobrick, Erik Seedhouse

Ryan L. Kobrick

This paper evaluates key functional data parameters that must be considered for suborbital spaceflight participants wearing pressurized suits for intravehicular activity (IVA). Data parameters of an analog spacesuit worn in an analog flight environment were obtained from 40 civilian participants using the Suborbital Space Flight Simulator (SSFS) at Embry-Riddle Aeronautical University (ERAU) while donning Final Frontier Design’s (FFD) fully pressurized third-generation spacesuit as part of their training for Project PoSSUM (the Polar Suborbital Science in the Upper Mesosphere Project). The physiological data collected included: blood pressure, electrocardiograms, heart rate, grip strength, and skin temperature. These parameters were measured using a …

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Integrating Spaceshiptwo Into The National Airspace System, Erik Seedhouse, Pedro Llanos Aug 2017

Integrating Spaceshiptwo Into The National Airspace System, Erik Seedhouse, Pedro Llanos

Pedro J. Llanos (www.AstronauticsLlanos.com)

The increasing number of commercial suborbital space flights over the next decade may lead to the development of commercial suborbital transportation. This may lead to risks to civil aviation and the hazards that may arise from the interaction of suborbital spacecraft with controlled air space. To do this the National Airspace System will need to accommodate a growing number of suborbital spacecraft. An example of one of the suborbital vehicles being developed is Virgin Galactic’s SpaceShipTwo. This paper analyzes the performance of SpaceShipTwo using simulated nominal flight research data conducted at Embry-Riddle Aeronautical University’s Suborbital Spaceflight Simulator.

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Senior Design - Final Design Paper, Hardeo Chin Apr 2017

Senior Design - Final Design Paper, Hardeo Chin

Hardeo Chin

No abstract provided.

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Galileo Probe, Monish Ranjan Chatterjee Apr 2017

Galileo Probe, Monish Ranjan Chatterjee

Monish R. Chatterjee

The Galileo mission to Jupiter was formally approved by the United States Congress in 1977, several years before the space shuttle Columbia made its maiden flight into Earth orbit. The mission was a cooperative project involving scientists and engineers from the United States, Germany, Canada, Great Britain, France, Sweden, Spain, and Australia. Even though the Voyager 1 and Voyager 2 spacecraft had performed flybys of planet Jupiter and its sixteen moons in 1979, the Galileo mission was envisioned to initiate several novel observations of Jupiter, the most massive gas planet of the solar system, and its principal moons, and conduct …

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Chemical Functional Group Descriptor For Jet Fuel Surrogate, Sang Hee Won, Francis M. Haas, Stephen Dooley, Frederick L. Dryer Mar 2017

Chemical Functional Group Descriptor For Jet Fuel Surrogate, Sang Hee Won, Francis M. Haas, Stephen Dooley, Frederick L. Dryer

Francis (Mac) Haas

The global chemical characters of complex chemical fuel mixtures are explicitly determined by evaluating the abundances of chemical functional groups present within it rather by applying molecular species composition. Statistical analyses on the relationships of each chemical functional group and the chemical property targets of the fuel are rigorously developed. The results demonstrate that the four CPTs currently used in surrogate formulation - H/C molar ratio, derived cetane number (DCN), average molecular weight (MW), and smoke point (SP) - effectively constrain the chemical function group distribution of the fuel, hence, the global combustion behaviors of pre-vaporized fuel/air mixtures. Emulating the …

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Simulation Model Of An Automatic Commercial Ice Machine, Haithem Murgham, David Myszka, Vijay Bahel, Rajan Rajendran, Kurt Knapke, Suresh Shivashankar, Kyaw Wynn Feb 2017

Simulation Model Of An Automatic Commercial Ice Machine, Haithem Murgham, David Myszka, Vijay Bahel, Rajan Rajendran, Kurt Knapke, Suresh Shivashankar, Kyaw Wynn

David Myszka

Automatic commercial ice-making machines that produce a batch of cube ice at regular intervals are known as “cubers." Such machines are commonly used in food service, food preservation, hotel, and health service industries. The machines are typically rated for the weight of ice produced over a 24-hour period at ambient air temperatures of 90°F and water inlet temperature of 70°F.

These cubers typically utilize an air-cooled, vapor-compression cycle to freeze circulating water flowing over an evaporator grid. Once a sufficient amount ice is formed, a valve switches to enable a harvest mode, where the compressor’s discharge gas is routed into …

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Augmented Reality Engine In Classroom_Hololens.Jpg, Lori Brown Jan 2017

Augmented Reality Engine In Classroom_Hololens.Jpg, Lori Brown

Lori Brown

Transformative aviation training using augmented reality in the classroom for pilot training.

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Dynamic Modeling And Simulation Of A Quadcopter With Motor Dynamics, A Ram (Bella) Kim Jan 2017

Dynamic Modeling And Simulation Of A Quadcopter With Motor Dynamics, A Ram (Bella) Kim

A Ram (Bella) Kim

Increased usage of quadcopters as an embedded system has raised the necessity of developing high quality dynamic models for designing controllers and simulations. In this work, a dynamic model was developed for a quadcopter platform by conducting experiments for estimating the moments of inertia and for determining motor dynamics. The dynamic model consisted of equations of motions derived from Newton and Euler's approach. Moments of inertia were estimated by operating a bifilar pendulum test. The motor dynamics were developed using a custom built test bed. The thrust, torque, voltage, and current were recorded in order to develop an adaptive dynamic …

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