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Articles 1 - 22 of 22
Full-Text Articles in Navigation, Guidance, Control and Dynamics
Solar Sailing Adaptive Control Using Integral Concurrent Learning For Solar Flux Estimation, Luis Enrique Mendoza Zambrano, Riccardo Bevilacqua
Solar Sailing Adaptive Control Using Integral Concurrent Learning For Solar Flux Estimation, Luis Enrique Mendoza Zambrano, Riccardo Bevilacqua
Student Works
In the interest of exploiting natural forces for propellant-less spacecraft missions, this investigation proposes an adaptive control strategy to account for unknown parameters in the dynamic modeling of a reflectivity-controlled solar sail spacecraft. A Lyapunov-based control law along with integral concurrent learning is suggested to accomplish and prove global exponential tracking of the estimated parameters and states of interest, without satisfying the common persistence of excitation condition, which in most nonlinear systems cannot be guaranteed a priori. This involves estimating the solar flux or irradiance from the Sun to account for uncertainty and variation over time in this value. To …
Dual Quaternion Relative Dynamics For Gravity Recovery Missions, Ryan Kinzie, Riccardo Bevilacqua, Seo Dongeun
Dual Quaternion Relative Dynamics For Gravity Recovery Missions, Ryan Kinzie, Riccardo Bevilacqua, Seo Dongeun
Student Works
A dual quaternion modeling approach is compared to traditional modeling methods for formation flying spacecraft utilized for gravity recovery missions. A modeling method that has traditionally been used for gravity recovery missions is presented which models the motion of two formation flying spacecraft and a test mass. This is followed by the dual quaternion-based formulation for the equations of motion of the twelve degree-of-freedom coupled relative dynamics of formation flying spacecraft and a test mass. Lastly, utilizing data products from the Gravity Recovery and Climate Experiment Follow-On mission, a comparison of these two modeling methods is presented which proves the …
Spacecraft Systems & Navigation, Christopher Vanacore
Spacecraft Systems & Navigation, Christopher Vanacore
Student Works
This textbook is steered towards higher educational course entailed in Commercial Space Operations. This textbook will be covering in detail Orbital Satellites, and Spacecraft. These topics are discussed according to their application, design, and environment. The power system, shielding and communication systems are reviewed along with their missions, space, environment and limitations. Any vehicle, whether manned or unmanned, intended for space travel is a spacecraft. A spacecraft's required systems and equipment depend on the information it will acquire and the tasks it will perform. Although their levels of sophistication vary widely, they re all subject to the harsh conditions of …
Celebrating 90-Orbits Around The Sun, Stafford Air & Space Museum
Celebrating 90-Orbits Around The Sun, Stafford Air & Space Museum
Programs
In celebration of the 90th birthday of Oklahoma astronaut and aerospace legend, Gen. Thomas P. Stafford, the Stafford Air & Space Museum in Weatherford, Oklahoma is offering free admission on September 17th, 2020.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
An Afternoon With General Thomas P. Stafford, Stafford Air & Space Museum
An Afternoon With General Thomas P. Stafford, Stafford Air & Space Museum
Programs
An Afternoon with General Thomas P. Stafford
Sunday, May 19th, 2019 at 2:00 P.M. at the Weatherford High School Performing Arts Center.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Apollo 10, 50th Anniversary Gala, Stafford Air & Space Museum
Apollo 10, 50th Anniversary Gala, Stafford Air & Space Museum
Programs
The Apollo 10 50th Anniversary Gala was held on May 18th, 2019 at the Stafford Air & Space Museum in Weatherford, Oklahoma.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Control Failures And How To Deal With It, Nihad E. Daidzic
Control Failures And How To Deal With It, Nihad E. Daidzic
Aviation Department Publications
FAA Safety Seminar (GL1591497) held at Minnesota State University, Mankato Wiecking Center Auditorium at 18:00 CST on Thursday, April 18, 2019.
Aircraft-Runway Total Energy Measurement, Monitoring, Managing, Safety, And Control System And Method, Nihad E. Daidzic,
Aircraft-Runway Total Energy Measurement, Monitoring, Managing, Safety, And Control System And Method, Nihad E. Daidzic,
Aviation Department Publications
United States Patent, Patent Number US 10,202,204 B1, Date of Patent February 12, 2019.
A total runway safety system (TRSS) and method measures, monitors, manages, and informs flight crew on the progress of takeoffs and landings and of any hazardous runway conditions. In some embodiments, the TRSS measures, monitors, and informs flight crew of longitudinal and lateral runway tracks thus preventing overruns and veer-offs during takeoffs and landings. In some embodiments, backscatter of infrared laser beams emitted by the aircraft is used to evaluate groundspeed and the reflectivity of the runway surface to make estimates of the surface conditions, roughness …
Unmanned Aerial Systems: Research, Development, Education & Training At Embry-Riddle Aeronautical University, Michael P. Hickey
Unmanned Aerial Systems: Research, Development, Education & Training At Embry-Riddle Aeronautical University, Michael P. Hickey
Publications
With technological breakthroughs in miniaturized aircraft-related components, including but not limited to communications, computer systems and sensors, state-of-the-art unmanned aerial systems (UAS) have become a reality. This fast-growing industry is anticipating and responding to a myriad of societal applications that will provide new and more cost-effective solutions that previous technologies could not, or will replace activities that involved humans in flight with associated risks.
Embry-Riddle Aeronautical University has a long history of aviation-related research and education, and is heavily engaged in UAS activities. This document provides a summary of these activities, and is divided into two parts. The first part …
Time Optimal State Feedback Control With Application To A Spacecraft With Cold Gas Propulsion, Samuel J. Kitchen-Mckinley, Sergey V. Drakunov
Time Optimal State Feedback Control With Application To A Spacecraft With Cold Gas Propulsion, Samuel J. Kitchen-Mckinley, Sergey V. Drakunov
Publications
A cold gas propulsion system is well suited to provide the required thrust for a small surveyor spacecraft operated near an asteroid or planetary surface. The cold gas propellant can obtained in-situ from local surface or atmospheric constituents. For small spacecraft, the cold gas system may be limited to only on-off control of the main tank where the generated thrust is directly dependent on the tank pressure. As such the thrust will slowly decrease as the propellant is expended. A state feedback, time optimal, control law is developed for a vehicle with propellant is expended. A state feedback, time optimal, …
Determining The Runway Point-Of-No-Return For Landing Roll Go-Around In Transport Category Airplanes, Nihad E. Daidzic
Determining The Runway Point-Of-No-Return For Landing Roll Go-Around In Transport Category Airplanes, Nihad E. Daidzic
Aviation Department Publications
No abstract provided.
Extending Gr While Moving Up To Supersonic Speeds Poses Challenges Requiring Innovations, Nihad E. Daidzic
Extending Gr While Moving Up To Supersonic Speeds Poses Challenges Requiring Innovations, Nihad E. Daidzic
Aviation Department Publications
Achieving true global range requires new ideas in lightweight aircraft structures, progress in transonic and supersonic aerodynamics and breakthroughs in low-SFC propulsion.
The Robert H. Goddard Papers, Robert H. Goddard
The Robert H. Goddard Papers, Robert H. Goddard
Archives & Special Collections Finding Aids
Dr. Robert H. Goddard was a member of the Clark Physics Department for 29 years. Foremost American pioneer of rocket research, he laid the technical and theoretical foundations for many of the developments in long-range rockets, missiles, satellites and space flight, which collectively put us into the Space Age.
The collection includes correspondence, diaries, journals, patent applications and awards, reports, and photographs. The collection also includes original paintings by Dr. Goddard.
High-Efficiency Thrust Vector Control Allocation, Jeb S. Orr, Nathan Slegers
High-Efficiency Thrust Vector Control Allocation, Jeb S. Orr, Nathan Slegers
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
A generalized approach to the allocation of redundant thrust vector slew commands for multi-actuated launch vehicles is presented, where deflection constraints are expressed as omniaxial or elliptical deflection limits in gimbal axes. More importantly than in the aircraft control allocation problem, linear allocators (pseudoinverses) are preferred for large booster applications to facilitate accurate prediction of the control-structure interaction resulting from thrust vectoring effects. However, strictly linear transformations for the allocation of redundant controls cannot, in general, access all of the attainable moments for which there is a set of control effector positions thatsatisfles the constraints. In this paper, the control …
Airplane Landing Flare-The Last 5 Seconds, Nihad E. Daidzic
Airplane Landing Flare-The Last 5 Seconds, Nihad E. Daidzic
Aviation Department Publications
No abstract provided.
Avoiding Overrun Accidents On Contaminated Runways, Nihad E. Daidzic
Avoiding Overrun Accidents On Contaminated Runways, Nihad E. Daidzic
Aviation Department Publications
No abstract provided.
Avoiding Aircraft Icing Accidents, Nihad E. Daidzic
Avoiding Aircraft Icing Accidents, Nihad E. Daidzic
Aviation Department Publications
No abstract provided.
Avoiding Veer-Off Accidents On Contaminated Runways, Nihad E. Daidzic
Avoiding Veer-Off Accidents On Contaminated Runways, Nihad E. Daidzic
Aviation Department Publications
No abstract provided.
Aircraft Landing Operations On Contaminated Runways, Nihad E. Daidzic
Aircraft Landing Operations On Contaminated Runways, Nihad E. Daidzic
Aviation Department Publications
No abstract provided.
Weatherford Air Show And General Thomas P. Stafford Museum Dedication, City Of Weatherford
Weatherford Air Show And General Thomas P. Stafford Museum Dedication, City Of Weatherford
Programs
This is a program from the 1987 Weatherford Air Show and General Thomas P. Stafford Museum Dedication in Weatherford, Oklahoma.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Second Annual Great Oklahoma Balloon Race & Airshow Gala Reception, Clarence E. Page Oklahoma Air And Space Museum
Second Annual Great Oklahoma Balloon Race & Airshow Gala Reception, Clarence E. Page Oklahoma Air And Space Museum
Programs
This is the program from the second annual Great Oklahoma Balloon Race & Airshow Gala Reception in honor of Astronaut, Lt. General Thomas P. Stafford. The event was held at the Clarence E. Page Oklahoma Aviation and Space Hall of Fame and Museum in the Kirkpatrick Center in OKC, OK, on Thursday, August 16th, 1984.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].
Apollo/Soyuz Tv Guide: "Soyuz, Soyuz, This Is Apollo...", Bob Button
Apollo/Soyuz Tv Guide: "Soyuz, Soyuz, This Is Apollo...", Bob Button
Articles
This is a TV Guide from 1975 that features a story about the televised Apollo/Soyuz mission.
Unless stated otherwise within this repository collection, all materials are shared under the following Creative Commons license: [Creative Commons Attribution-NonCommercial 4.0 International License].