Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Air Force Institute of Technology (30)
- Embry-Riddle Aeronautical University (8)
- University of Nebraska at Omaha (5)
- Missouri University of Science and Technology (4)
- Old Dominion University (4)
-
- University of Alabama in Huntsville (3)
- Western Michigan University (3)
- St. Cloud State University (2)
- William & Mary (2)
- California Polytechnic State University, San Luis Obispo (1)
- Cleveland State University (1)
- San Jose State University (1)
- Syracuse University (1)
- University of Dayton (1)
- University of Tennessee, Knoxville (1)
- Utah State University (1)
- Keyword
-
- Aviation (5)
- Earth orbits (5)
- ARTG (4)
- Air Transport Research Group (4)
- Conference (4)
-
- Proceedings (4)
- WCTR Society (4)
- Aircraft Landing Guidance (2)
- Equations of motion (2)
- Flow fields (2)
- Longitudinal Dynamics (2)
- Low orbit trajectories (2)
- Metallic composites--Thermal fatigue (2)
- NASA (2)
- Neurocontrollers (2)
- Optimization (2)
- Payload (2)
- Wind Disturbances (2)
- AQR (1)
- Actuators (1)
- Adaptive Control (1)
- Adaptive Critic (1)
- Adaptive Critic Based Neural Networks (1)
- Aerodynamics (1)
- Aeronautical engineering (1)
- Aerospace (1)
- Aerospace systems (1)
- Aircraft (1)
- Aircraft Autolanding (1)
- Aircraft models (1)
- Publication
-
- Theses and Dissertations (30)
- Master's Theses - Daytona Beach (6)
- Faculty Books and Monographs (5)
- Honors Capstone Projects and Theses (3)
- Mechanical & Aerospace Engineering Theses & Dissertations (3)
-
- Mechanical and Aerospace Engineering Faculty Research & Creative Works (3)
- Dissertations, Theses, and Masters Projects (2)
- Doctoral Dissertations (2)
- Flightlines Newsletter (2)
- International Bulletin of Political Psychology (2)
- Masters Theses (2)
- Aerospace Engineering (1)
- Honors Theses (1)
- Mathematics & Statistics Theses & Dissertations (1)
- Mechanical and Aerospace Engineering Faculty Publications (1)
- Nikos J. Mourtos (1)
- Sociology & Criminology Faculty Publications (1)
- Syracuse University Magazine (1)
- Undergraduate Honors Capstone Projects (1)
- Publication Type
Articles 61 - 68 of 68
Full-Text Articles in Engineering
A Feasibility Study Of Fuel Cell Cogeneration In Industry, Scott B. Phelps, J. Kelly Kissock
A Feasibility Study Of Fuel Cell Cogeneration In Industry, Scott B. Phelps, J. Kelly Kissock
Mechanical and Aerospace Engineering Faculty Publications
Up until now, most of the literature on fuel cell cogeneration describes cogeneration at commercial sites. In this study, a PC25C phosphoric acid fuel cell cogeneration system was designed for an industrial facility and an economic analysis was performed. The US DOE Industrial Assessment Center (IAC) database was examined to determine what industry considers a good investment for energy saving measures. Finally, the results of the cogeneration analysis and database investigation were used to project the conditions in which the PC25C might be accepted by industry.
Analysis of IAC database revealed that energy conservation recommendations with simple paybacks as high …
Development Of Radiation Shielding Materials For Space Applications, Stephen C. Ko
Development Of Radiation Shielding Materials For Space Applications, Stephen C. Ko
Dissertations, Theses, and Masters Projects
No abstract provided.
Adaptive Critic Based Neurocontroller For Autolanding Of Aircrafts, S. N. Balakrishnan, Gaurav Saini
Adaptive Critic Based Neurocontroller For Autolanding Of Aircrafts, S. N. Balakrishnan, Gaurav Saini
Mechanical and Aerospace Engineering Faculty Research & Creative Works
In this paper, adaptive critic based neural networks have been used to design a controller for a benchmark problem in aircraft autolanding. The adaptive critic control methodology comprises successive adaptations of two neural networks, namely action and critic network (which approximate the Hamiltonian equations associated with optimal control theory) until closed loop optimal control is achieved. The autolanding problem deals with longitudinal dynamics of an aircraft which is to be landed in a specified touchdown region (within acceptable ranges of speed, pitch angle and sink rate) in the presence of wind disturbances and gusts using elevator deflection as the control …
Adaptive Critic Based Neurocontroller For Autolanding Of Aircraft With Varying Glideslopes, Gaurav Saini, S. N. Balakrishnan
Adaptive Critic Based Neurocontroller For Autolanding Of Aircraft With Varying Glideslopes, Gaurav Saini, S. N. Balakrishnan
Mechanical and Aerospace Engineering Faculty Research & Creative Works
In this paper, adaptive critic based neural networks have been used to design a controller for a benchmark problem in aircraft autolanding. The adaptive critic control methodology comprises successive adaptations of two neural networks, namely `action' and `critic' networks until closed loop optimal control is achieved. The autolanding problem deals with longitudinal dynamics of an aircraft which is to be landed in a specified touchdown region in the presence of wind disturbances and gusts using elevator deflection as the control for glideslope and flare modes. The performance of the neurocontroller is compared to that of a conventional PID controller. Neurocontroller's …
The Airline Quality Rating 1997, Brent Bowen, Dean Headley, Uno Aviation Institute
The Airline Quality Rating 1997, Brent Bowen, Dean Headley, Uno Aviation Institute
Faculty Books and Monographs
UNOAI Report 97-9
The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline performance on combined multiple factors important to consumers. Development history and calculation details for the AQR rating system are detailed in The Airline Quality Rating 1991 issued in April, 1991, by the National Institute for Aviation Research at Wichita State University. This current report, Airline Quality Rating 1997, contains monthly Airline Quality Rating scores for 1996. Additional copies are available by contacting Wichita State University or University of Nebraska at Omaha. The Airline Quality Rating 1997 is …
Vehicle Performance Optimization Utilizing The Air Turbo-Ramjet Propulsion System; Methodology Development And Applications, Kirk Christensen
Vehicle Performance Optimization Utilizing The Air Turbo-Ramjet Propulsion System; Methodology Development And Applications, Kirk Christensen
Doctoral Dissertations
"The ATR (Air TurboRocket) is an air breathing propulsion system in which the turbocompressor turbine is powered by a hot drive gas which is generated independently of the air flow through the compressor. The ATR has a lower specific impulse (Isp) and higher thrust compared to a similar size turbojet but a lower thrust and higher Isp compared to similar size solid rocket motor (SRM). This work defines the benefits of ATR propulsion for tactical vehicles.
ATR simulation codes were developed to support analysis of hypothetical ATR powered vehicles. Both turbojet powered and SRM powered vehicles were also evaluated against …
Discrete-Time Linear And Nonlinear Aerodynamic Impulse Responses For Efficient Cfd Analyses, Walter A. Silva
Discrete-Time Linear And Nonlinear Aerodynamic Impulse Responses For Efficient Cfd Analyses, Walter A. Silva
Dissertations, Theses, and Masters Projects
This dissertation discusses the mathematical existence and the numerical identification of linear and nonlinear aerodynamic impulse response functions. Differences between continuous-time and discrete-time system theories, which permit the identification and efficient use of these functions, will be detailed. Important input/output definitions and the concept of linear and nonlinear systems with memory will also be discussed. It will be shown that indicial (step or steady) responses (such as Wagner's function), forced harmonic responses (such as Theodorsen's function or those from doublet lattice theory), and responses to random inputs (such as gusts) can all be obtained from an aerodynamic impulse response function. …
A System For Collecting Milligram Quantities Of Cloud Condensation Nuclei, Darryl J. Alofs, Donald E. Hagen, Steven D. Medley, Daniel R. White, John L. Schmitt, Allen L. Williams
A System For Collecting Milligram Quantities Of Cloud Condensation Nuclei, Darryl J. Alofs, Donald E. Hagen, Steven D. Medley, Daniel R. White, John L. Schmitt, Allen L. Williams
Mechanical and Aerospace Engineering Faculty Research & Creative Works
An Experimental System to Collect Cloud Condensation Nuclei (CCN) Onto Filters in Amounts Sufficient for Chemical Analysis is Described. This Experimental Apparatus is Designed to Process Ambient Air at a Rate of More Than 1 M3/min. Two Identical Systems Have Been Built. One is Installed in a Laboratory at Rolla, MO. the Other is Installed on an 11 M Long Trailer. the System Isolates Three Size Classes of CCN, Having Mass Median Diameters of 0.27, 0.12, and 0.075 Μm, Respectively, and Mass Collection Rates of 11.5, 1.28, and 0.13 Mg/day, Respectively. the above Sizes and Collection Rates Are Obtained from …