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Articles 181 - 210 of 521
Full-Text Articles in Other Aerospace Engineering
Vtt Technical Research Centre Of Finland, Vtt Technical Research Centre
Vtt Technical Research Centre Of Finland, Vtt Technical Research Centre
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation titled "VTT Technical Research Centre of Finland" from February 14, 2013.
Smaller Spacecraft For Flying Large Clusters Of Biological Space Experiments, Robert J. Twiggs
Smaller Spacecraft For Flying Large Clusters Of Biological Space Experiments, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Smaller spacecraft for flying large clusters of biological space experiments" from February 5, 2013.
Would I Survive In Space?, Robert J. Twiggs
Would I Survive In Space?, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Would I survive in Space?" from February 4, 2013.
Spacecraft Payloads, Robert J. Twiggs
Spacecraft Payloads, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Spacecraft Payloads" on January 5, 2013.
Systems Engineering, Robert J. Twiggs
Systems Engineering, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "System Engineering" on January 5, 2013.
Akin's Laws Of Spacecraft Design, Robert J. Twiggs
Akin's Laws Of Spacecraft Design, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A document use in class by Professor Bob Twiggs titled "Akin's Law of Spacecraft Design" from January 5, 2013.
Space Environment-Ii Lecture - Powerpoint Presentation, Robert J. Twiggs
Space Environment-Ii Lecture - Powerpoint Presentation, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
Professor Bob Twiggs' lecture on Space Environment-II PowerPoint presentation delivered on December 3, 2012.
Cubesat: From The Beginning To Who Knows Where, Robert J. Twiggs
Cubesat: From The Beginning To Who Knows Where, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "CubeSat: From the Beginning to Who Knows Where" from November 13, 2012.
Small-Satellites For Arctic And Maritime Operations And Research, Robert J. Twiggs
Small-Satellites For Arctic And Maritime Operations And Research, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Small-Satellites for Arctic and Maritime Operations and Research" from November 9, 2012.
Cubesat, Robert J. Twiggs
Cubesat, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "CubeSat" from November 7, 2012.
The Us Challenge To Stay The Worlds Technical Leader In Innovation, Robert J. Twiggs
The Us Challenge To Stay The Worlds Technical Leader In Innovation, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "The US Challenge to Stay the Worlds Technical Leader in Innovation" from October 18, 2012.
Educating Undergraduate Space Science Students With Real Space Missions: Nanosatellite And Nanolab Missions In Kentucky, Robert J. Twiggs
Educating Undergraduate Space Science Students With Real Space Missions: Nanosatellite And Nanolab Missions In Kentucky, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Educating Undergraduate Space Science Students with Real Space Missions: NanoSatellite and NanoLab Missions in Kentucky" from September 27, 2012.
Proposed Msu Matchbooksat For Iss Launch 2014, Robert J. Twiggs
Proposed Msu Matchbooksat For Iss Launch 2014, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Proposed MSU MatchBookSat for ISS Launch 2014" from September 6, 2012.
Where Did All Those Launches Come From? Or What Can We Do Now That We Have Launches?, Robert J. Twiggs
Where Did All Those Launches Come From? Or What Can We Do Now That We Have Launches?, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Where did all those Launches come from? Or What can we do now that we have launches?" from August 11, 2012.
Tiny Satellites For Stem, Carlos G. Niederstrasser
Tiny Satellites For Stem, Carlos G. Niederstrasser
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Carlos G. Niederstrasser titled "Tiny Satellites for STEM" from July 13, 2012.
Development Of A Pyrotechnic Shock Simulation Apparatus For Spacecraft Applications, Joseph Binder, Matthew Mccarty, Chris Rasmussen
Development Of A Pyrotechnic Shock Simulation Apparatus For Spacecraft Applications, Joseph Binder, Matthew Mccarty, Chris Rasmussen
Aerospace Engineering
This report details the research, design, construction, and testing of a pyrotechnic shock simulation apparatus for spacecraft applications. The apparatus was developed to be used in the Space Environments Lab at California Polytechnic State University. It will be used for testing spacecraft components with dimensions up to 24”x12”x12” as well as CubeSats. Additionally, it may be used as an instructional or demonstrational tool in the Aerospace Department’s space environments course. The apparatus functions by way of mechanical impact of an approximately 20 lb stainless steel swinging hammer. Tests were performed to verify the simulator’s functionality. Suggestions for improvement and further …
Thermal Vacuum Integration For Cal Poly's Space Environments Laboratory, Chelsea Barackman, Steven Jackowski
Thermal Vacuum Integration For Cal Poly's Space Environments Laboratory, Chelsea Barackman, Steven Jackowski
Aerospace Engineering
The purpose of the senior project is to construct a thermal vacuum by utilizing a preexisting vacuum chamber in the Space Environments Lab, and a donated Advanced Thermal Sciences (ATS) chiller. While a thermal vacuum is already available on campus, building one for the Space Environments Lab would grant undergraduates access to the equipment, allowing a much better understanding of testing methods and procedures in use by the aerospace industry. This paper explains the design and analysis of the thermal vacuum (T-VAC) project as well as the operation and procedures required for the ATS chiller and fill/drain tank. The thermal …
De-Orbiting Upper Stage Rocket Bodies Using A Deployable High Altitude Drag Sail, Robert A. Hawkins Jr., Joseph A. Palomares
De-Orbiting Upper Stage Rocket Bodies Using A Deployable High Altitude Drag Sail, Robert A. Hawkins Jr., Joseph A. Palomares
Aerospace Engineering
This report examines the effectiveness of a drag sail to de-orbit upper stage rocket bodies. Many other perturbations contribute to the de-orbiting of these rocket bodies, and these perturbations will also be discussed briefly. This paper will show the length of time needed to force the altitudes of various launch vehicle stages with varying drag area sizes to less than 100 km. The upper stage of the Delta IV launch vehicle in an orbit with an altitude of 500 km will naturally de-orbit in 720 days but when equipped with a 20 m2 drag sail, it will de-orbit in …
Comm-Multiple Access - Slides, Robert J. Twiggs
Comm-Multiple Access - Slides, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Comm-Multiple Access" from April 24, 2012.
Ec 723 Satellite Communication Systems, Mohammed Khedr
Ec 723 Satellite Communication Systems, Mohammed Khedr
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Mohammed Khdr titled "EC 723 Satellite Communication Systems" from April 10, 2012.
Space Science And Astrophysics Programs, Robert J. Twiggs
Space Science And Astrophysics Programs, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Space Science and Astrophysics Programs" from April 9, 2012.
Space Science Research And Stem Activities At Morehead State University, Robert J. Twiggs
Space Science Research And Stem Activities At Morehead State University, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Space Science Research and STEM Activities at Morehead State University" from March 7, 2012.
Arliss: A Rocket Launch For International Student Satellites - Launch Report For 2011, David Raimondi
Arliss: A Rocket Launch For International Student Satellites - Launch Report For 2011, David Raimondi
Robert "Bob" Twiggs STEM Education Collection
A report written by David Raimondi titled "ARLISS A Rocket Launch for International Student Satellites Launch Report for 2011" from March 7, 2012.
Protection Of Humanity’S Cultural And Historic Heritage In Space, Justin St. P. Walsh
Protection Of Humanity’S Cultural And Historic Heritage In Space, Justin St. P. Walsh
Art Faculty Articles and Research
While the international community has acted forcefully since World War II to protect sites and objects of cultural or historic significance on Earth, little attention has been paid to the same kinds of sites and objects in space. There are important ethical and scholarly reasons for wanting to preserve sites and in situ objects in off-Earth contexts from destruction or commercial exploitation. Innovative space research equipment, such as spacecraft, satellites, and space stations, and the locations of historic missions, such as Tranquility Base, therefore deserve formal international recognition and protection. Appropriate models for developing a comprehensive protective scheme can be …
Cubesat Constellation Analysis For Data Relaying, Bradley Ryan Smalarz
Cubesat Constellation Analysis For Data Relaying, Bradley Ryan Smalarz
Master's Theses
Current CubeSat communication technology limits the amount of time, and number of accesses with ground stations. It has been proposed to use a constellation of CubeSats to improve relay performance and increase the number of accesses between a CubeSat and ground stations. By using the spatial and temporal analysis features of STK, coupled with the STK/Matlab interface a robust tool was created to analyze the performance of CubeSat constellations based on a store-and-forward communications model which is not currently supported by the STK Engine. Utilizing the Connect messaging format through a socket connection on the local machine, a Matlab graphical …
Radiation Effects Basics For 7750, Robert J. Twiggs
Radiation Effects Basics For 7750, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs on "Radiation Effects Basics for 7750" on September 25, 2011.
Space Environment-Iii Lecture - Powerpoint Presentation, Robert J. Twiggs
Space Environment-Iii Lecture - Powerpoint Presentation, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
Professor Bob Twiggs' lecture on Space Environment-III PowerPoint presentation delivered on September 2, 2011.
Space Environment - A Review, Robert J. Twiggs
Space Environment - A Review, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs on "Space Environment" on September 2, 2011.
Design, Manufacturing And Testing Of An Environmentally-Green Bipropellant Thruster, Alex Bendoyro, Gabriel Sanchez, Erin Stearns, Phillip Takahashi
Design, Manufacturing And Testing Of An Environmentally-Green Bipropellant Thruster, Alex Bendoyro, Gabriel Sanchez, Erin Stearns, Phillip Takahashi
Aerospace Engineering
This project reviews the design, manufacturing and experimentation process of a green bi-propellant thruster designed to output 5 lbf. The goals were to successfully design, manufacture and test a thruster, while discovering the complications that arise through out the complete design process of a green thruster. The thruster was successfully designed using ideal rocket equations and the design was successfully confirmed using CFD and FEA. Manufacturing of the thruster was fully planned and revealed mild flaws in thruster design. For example some features were not manufacturable to the exact measurements desired. Testing of the engine gave results inconsistent with expected …
Design, Fabrication, And Testing Of An Electromagnetic Rail Gun For The Repeated Testing And Simulation Of Orbital Debris Impacts, Jeff Maniglia, Jordan Smiroldo, Alex Westfall, Guy Zohar
Design, Fabrication, And Testing Of An Electromagnetic Rail Gun For The Repeated Testing And Simulation Of Orbital Debris Impacts, Jeff Maniglia, Jordan Smiroldo, Alex Westfall, Guy Zohar
Aerospace Engineering
An Electromagnetic Railgun (EMRG) was designed, built, and tested, capable of firing a projectile a 1 gram projectile at 650 m/s muzzle velocity. The EMRG utilizes an injector, a high voltage power supply, a capacitor bank, inductors and rails. The injector fires 2300 psig Nitrogen gas into the system to provide an initial velocity. The high voltage power supply charges the capacitor bank. The capacitor bank discharges the electric potential built up through the projectile while inside the rails in order to create the EMRG’s force. The inductors are used to pulse form the capacitor bank in order to get …