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Articles 1 - 30 of 57
Full-Text Articles in Space Vehicles
Spacex: Breaking The Barrier To The Space Launch Vehicle Industry, Matthew M. Liskowcyz
Spacex: Breaking The Barrier To The Space Launch Vehicle Industry, Matthew M. Liskowcyz
Theses and Dissertations
The Space Launch Vehicle (SLV) industry has been around for a long time, but few companies have managed to enter this industry. SpaceX was founded only 10 years ago, but it has managed to become a leader in the U.S. industry and a dominant player worldwide. The purpose of this thesis research is to discover what it took for SpaceX to break into this tightly controlled industry. A qualitative analysis was performed to compare SpaceX to companies that overcame the barriers of entry for their respective industries. SpaceX, like FedEx, could implement a unique technique to the industry and find …
Phased Helical Antenna Array For Cubesat Application, Kameron Lacalli
Phased Helical Antenna Array For Cubesat Application, Kameron Lacalli
Undergraduate Honors Theses
CubeSats communication links are typically slow due to their power and size restrictions. However, a low power, high speed down link connection can allow for greater data collection and relaying, pushing the capability of 1U CubeSats beyond what is traditionally thought possible. Investigated here is the feasibility of a 11 Mb/s down link connection on a 1U CubeSat, accomplished via 2x2 helical antenna phased array operating on the 802.11 standard. Using a phased array also allows for beam steering to secure connection with the ground station when the on board ADCS may not provide precise pointing capability of the CubeSat, …
Geostationary Operational Environmental Satellite- R Series (Goes-R) 2016, Paige N. Dixon
Geostationary Operational Environmental Satellite- R Series (Goes-R) 2016, Paige N. Dixon
Student Works
This is a report on the first NOAA GOES-R satellite, launched on November 19th, 2016. This report will cover some of the details of the GOES-R project, as well as discuss the collaborations that made the project possible. This document will also detail some of the new satellite’s capabilities including geostationary lightning detection, and space weather monitoring, and will focus on real-world application of such technology. Additionally, this report will list some of the current and projected GOES-R products, and the potential benefits if testing proves successful.
Configuration Validation Of A Novel In-Space Propellant Storage And Transfer System, Priyadarshan Sundararaju
Configuration Validation Of A Novel In-Space Propellant Storage And Transfer System, Priyadarshan Sundararaju
Doctoral Dissertations and Master's Theses
The concept of developing a new technology for on-orbit storage and refueling system has been a great interest among scientists for many decades. This study is about Centaur-based on-orbit propellant storage and transfer. This system takes the advantage of rotational settling to a simple fluid management (FM) system. Specifically, enabling settled fluid transfer and settled pressure control between two tanks. This thesis work focuses on configuration and validation of static and dynamic stability, mass gauging and CFD analysis of the rotational propellant transfer method in space. The application of this technology in Low Earth Orbit (LEO) and Geo-Synchronous Orbit (GEO) …
Virginia Space Pocketqube Launch Opportunity, Robert J. Twiggs
Virginia Space Pocketqube Launch Opportunity, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Virginia Space PocketQube Launch Opportunity" from December 1, 2016.
Commercial Space Situational Awareness (Ssa) Capabilities And Their Benefits For Civilian Space Traffic Management (Stm), Mark A. Skinner
Commercial Space Situational Awareness (Ssa) Capabilities And Their Benefits For Civilian Space Traffic Management (Stm), Mark A. Skinner
Space Traffic Management Conference
Paralleling (but lagging) satellite development, SSA, long the sole domain of sophisticated militaries, now includes commercial providers. These commercial capabilities, identified as beneficial to the sustainable use of outer space[1], have demonstrated technical sophistication sufficient to positively contribute to the mitigation of satellite interference and provide actionable SSA information. Utilizing small optical telescopes, these entities are able to determine the orbits of objects in the geosynchronous orbit (GSO) to sizes as small as 1 m2, with measured positional uncertainties of 10s of meters, on the order of the size of a modern communications satellite. These techniques …
A Novel Approach For Controlled Deorbiting And Reentry Of Small Spacecraft, Larry H. Fineberg, Justin Treptow, Timothy Bass, Scott Clark, Yusef Johnson, Bradley Poffenberger
A Novel Approach For Controlled Deorbiting And Reentry Of Small Spacecraft, Larry H. Fineberg, Justin Treptow, Timothy Bass, Scott Clark, Yusef Johnson, Bradley Poffenberger
Space Traffic Management Conference
No abstract provided.
Want To Be A Space Scientist For All Ages?, Robert J. Twiggs
Want To Be A Space Scientist For All Ages?, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Want to be a Space Scientistfor all ages?" from November 8, 2016.
Balloon Assisted Sounding Rocket Vehicle Concept Study, Benjamin Thompson, Christopher Helmerich, Jared Fuchs, Matthew Haskell, Tate Harriman
Balloon Assisted Sounding Rocket Vehicle Concept Study, Benjamin Thompson, Christopher Helmerich, Jared Fuchs, Matthew Haskell, Tate Harriman
Von Braun Symposium Student Posters
No abstract provided.
Optimization Of A High Power Rocket Vehicle For Autonomous Rover Deployment, Davis Hunter, Francis Wessling
Optimization Of A High Power Rocket Vehicle For Autonomous Rover Deployment, Davis Hunter, Francis Wessling
Von Braun Symposium Student Posters
No abstract provided.
Spacecraft Charging Current Balance Model Applied To High Voltage Solar Array Operations, Emily M. Willis, Maria Z A Pour
Spacecraft Charging Current Balance Model Applied To High Voltage Solar Array Operations, Emily M. Willis, Maria Z A Pour
Von Braun Symposium Student Posters
No abstract provided.
Overview Of The Terrestrial Rays Analysis And Detection Science Mission, Jared Fuchs
Overview Of The Terrestrial Rays Analysis And Detection Science Mission, Jared Fuchs
Von Braun Symposium Student Posters
No abstract provided.
Multidisciplinary Design Optimization Of Launch Vehicles Using Exergy As An Objective, Andrew Gilbert, Bryan Mesmer
Multidisciplinary Design Optimization Of Launch Vehicles Using Exergy As An Objective, Andrew Gilbert, Bryan Mesmer
Von Braun Symposium Student Posters
No abstract provided.
Space Systems Overview Of Sse -120 Satellites & Space Systems I, Robert J. Twiggs
Space Systems Overview Of Sse -120 Satellites & Space Systems I, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs on "Space Systems Overview of SSE -120 Satellites & Space Systems I" on October 27, 2016.
Launch Vehicles, Robert J. Twiggs
Launch Vehicles, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "Launch Vehicles" from October 27, 2016.
Pocketqube: The New Opportunity To Get Into Space, Robert J. Twiggs
Pocketqube: The New Opportunity To Get Into Space, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "PocketQube: The New Opportunity to get into Space" from October 3, 2016.
Pocketqube Opportunity Mission, Robert J. Twiggs
Pocketqube Opportunity Mission, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "PocketQube Opportunity Mission" from October 2, 2016.
Pocketqube Opportunity Mission: Vmo Mission, Robert J. Twiggs
Pocketqube Opportunity Mission: Vmo Mission, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "PocketQube Opportunity Mission: VMO Mission" from September 30, 2016.
Lunar Icecube: Nasa Nextstep Lunar Cubesat Mission, Robert J. Twiggs
Lunar Icecube: Nasa Nextstep Lunar Cubesat Mission, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Lunar IceCube: NASA NEXTSTEP Lunar CubeSat Mission" from September 29, 2016.
Space Qualification Testing Of A Deployable Shape Memory Alloy Cubesat Antenna, Carl L. Kobza
Space Qualification Testing Of A Deployable Shape Memory Alloy Cubesat Antenna, Carl L. Kobza
Theses and Dissertations
Increasingly capable CubeSat missions require antenna with improved Radio Frequency performance over the traditional CubeSat antennas. Deployable quadrifilar helical antennas (QHA) enable an acceptable stowing volume and deploy to provide increased gain and bandwidth over traditional patch and dipole antennas. Extensive ground testing is required to ensure the antenna is space qualified and to characterize the antenna deployment in the space environment. AFIT requires a QHA to perform a future CubeSat geolocation mission and contracted Helical Communication Technologies (HCT) to design and manufacture a Shape Memory Alloy (SMA) L-band deployable QHA. Vibration, thermal vacuum, laser vibrometer, and Voltage Standing Wave …
Adaptive Estimation And Heuristic Optimization Of Nonlinear Spacecraft Attitude Dynamics, Joshuah A. Hess
Adaptive Estimation And Heuristic Optimization Of Nonlinear Spacecraft Attitude Dynamics, Joshuah A. Hess
Theses and Dissertations
For spacecraft conducting on-orbit operations, changes to the structure of the spacecraft are not uncommon. These planned or unanticipated changes in inertia properties couple with the spacecraft's attitude dynamics and typically require estimation. For systems with time-varying inertia parameters, multiple model adaptive estimation (MMAE) routines can be utilized for parameter and state estimates. MMAE algorithms involve constructing a bank of recursive estimators, each assuming a different hypothesis for the systems dynamics. This research has three distinct, but related, contributions to satellite attitude dynamics and estimation. In the first part of this research, MMAE routines employing parallel banks of unscented attitude …
Orbit Determination Using Vinti's Solution, Steven P. Wright
Orbit Determination Using Vinti's Solution, Steven P. Wright
Theses and Dissertations
Orbital altitudes congested with spacecraft and debris combined with recent collisions have all but negated the Big Sky Theory. As the sheer number of orbital objects to track grows unbounded so does interest in prediction methods that are rapid and minimally computational. Claimed as the \other solvable solution, the recently completed solution too orbital motion about the earth, based on Vinti's method and including the major effects of the equatorial bulge, opens up the prospect of much more accurate analytical models for space situational awareness. A preliminary examination of this solution is presented. A numerical state transition matrix is found …
Pocketcubes/Cubesats On Antares, Robert J. Twiggs, Walter Holemans, Michael Bitzer
Pocketcubes/Cubesats On Antares, Robert J. Twiggs, Walter Holemans, Michael Bitzer
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs, Walter Holmans, and Michael Bitzer titled "PocketCubes/CubeSats on Antares" from September 6, 2016.
Citizensatellite: Low Cost Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Citizensatellite: Low Cost Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Robert Twiggs, Amin Djamshidpour, Ted Tagami, and Tony Sotitled "CitizenSatellite: Low Cost Missions for the Unordinary Innovator" from August 19, 2016.
Secondary Launch Opportunities Orbital Atk, Robert J. Twiggs
Secondary Launch Opportunities Orbital Atk, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Secondary Launch Opportunities Orbital ATK" from August 17, 2016.
Citizen Satellite: A Way To Have Low Cost Space Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Citizen Satellite: A Way To Have Low Cost Space Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Robert Twiggs, Amin Djamshidpour , Ted Tagami, and Tony So titled "Citizen Satellite: A Way to have Low Cost Space Missions for the Unordinary Innovator" from August 7, 2016.
Meeting The Dod’S Tactical Weather Needs Using Cubesats, Shayna K. Mckenney
Meeting The Dod’S Tactical Weather Needs Using Cubesats, Shayna K. Mckenney
Theses and Dissertations
This thesis investigates a CubeSat design that uses Commercial-Off-The-Shelf (COTS) components to capture, store, process, and downlink collected terrestrial weather data at resolutions near stat-of-the-art. The weather phenomena to be detected and transmitted in a timely manner are cloud formations, wind profiles, ocean currents, sea state, lightning, temperature profiles, and precipitation. It is hypothesized and shown that the proposed design will provide an improvement on the current U.S. tactical weather collection satellites because of the anticipated increased reliability and lowered cost to build and maintain the proposed CubeSat constellation. The methodology employed a multi-phase approach through the collective research of …
Sysml Based Cubesat Model Design And Integration With The Horizon Simulation Framework, Shaun Luther
Sysml Based Cubesat Model Design And Integration With The Horizon Simulation Framework, Shaun Luther
Master's Theses
This thesis examines the feasibility of substituting the system input script of Cal Poly’s Horizon Simulation Framework (HSF) with a Model Based Systems Engineering (MBSE) model designed with the Systems Modeling Language (SysML). A concurrent student project, SysML Output Interface Creation for the Horizon Simulation Framework, focused on design of the HSF Translator Plugin which converts SysML models to an HSF specific XML format. A SysML model of the HSF test case, Aeolus, was designed. The original Aeolus HSF input script and the translated SysML input script retained the format and dependency structure required by HSF. Both input scripts …
An Iteration On The Horizon Simulation Framework To Include .Net And Python Scripting, Morgan Yost
An Iteration On The Horizon Simulation Framework To Include .Net And Python Scripting, Morgan Yost
Master's Theses
Modeling and Simulation is a crucial element of the aerospace engineering design pro- cess because it allows designers to thoroughly test their solution before investing in the resources to create it. The Horizon Simulation Framework (HSF) v3.0 is an aerospace modeling and simulation tool that allows the user to verify system level requirements in the early phases of the design process. A low fidelity model of the system that is created by the user is exhaustively tested within the built-in Day-in-the-Life simulator to provide useful information in the form of failed requirements, system bottle necks and leverage points, and potential …
Phased Array Antenna Investigation For Cubesat Size Satellites, Kien Dang
Phased Array Antenna Investigation For Cubesat Size Satellites, Kien Dang
Morehead State Theses and Dissertations
A Thesis Presented to the Faculty of the College of Science Morehead State University in Partial Fulfillment of the Requirements for the Degree Master of Science by Kien Dang on April 18, 2016.