Now showing items 47-66 of 108

    • Flight System Options for a Long Duration Mars Airplane 

      Rohrschneider, Reuben R.; Olds, John R.; Kuhl, Christopher A.; Braun, Robert D.; Steffes, Stephen R.; Hutchinson, Virgil L., Jr. (Georgia Institute of Technology, 2004-09)
      The goal of this study was to explore the flight system options for the design of a long endurance Mars airplane mission. The mission model was built in the design framework ModelCenter and a combination of a hybrid and ...
    • The Gryphon: A Flexible Lunar Lander Design to Support a Semi-Permanent Lunar Outpost 

      Arney, Dale; Hickman, Joseph; Tanner, Philip; Wagner, John; Wilson, Marc; Wilhite, Alan W. (Georgia Institute of Technology, 2007-09)
      A lunar lander is designed to provide safe, reliable, and continuous access to the lunar surface by the year 2020. The NASA Exploration System Architecture is used to initially define the concept of operations, architecture ...
    • Hyperion: An SSTO Vision Vehicle Concept Utilizing Rocket-Based Combined Cycle Propulsion 

      Olds, John R.; Bradford, John Edward; Charania, Ashraf; Ledsinger, Laura Anne; McCormick, David Jeremy; Sorensen, Kirk (Georgia Institute of Technology, 1999-11)
      This paper reports the findings of a conceptual launch vehicle design study performed by members of the Space Systems Design Laboratory at Georgia Tech. Hyperion is a conceptual design for an advanced reusable launch vehicle ...
    • Improvements and Enhancements to SCCREAM, A Conceptual RBCC Engine Analysis Tool 

      Bradford, John Edward; Olds, John R. (Georgia Institute of Technology, 1998-07)
      A rocket based combined-cycle engine analysis tool suitable for use in the conceptual design environment has recently been established. While this tool was being used in the design environment, new analysis capabilities ...
    • Improving Lunar Return Entry Footprints Using Enhanced Skip Trajectory Guidance 

      Putnam, Zachary R.; Braun, Robert D.; Bairstow, S. H.; Barton, G. H. (Georgia Institute of Technology, 2006-09)
      The impending development of NASA's Crew Exploration Vehicle (CEV) will require a new entry guidance algorithm that provides sufficient performance to meet all requirements. This study examined the effects on entry footprints ...
    • In-Space Deployment Options for Large Space Solar Power Satellites 

      Olds, John R.; Way, David Wesley; Charania, Ashraf; Budianto, Irene Arianti; Marcus, Leland R. (Georgia Institute of Technology, 2000-10)
      This research was performed at the Space Systems Design Lab at the Georgia Institute of Technology, Atlanta, GA, with the charter of identifying economically attractive candidate space transfer vehicle systems for ferrying ...
    • Integrating Aeroheating and TPS into Conceptual RLV Design 

      Cowart, Karl K.; Olds, John R. (Georgia Institute of Technology, 1999-11)
      The purpose of this study is to develop the Thermal Calculation Analysis Tool (TCAT) that will enable Aeroheating and Thermal Protection System (TPS) sizing to be, an on-line, automated process. This process is described ...
    • Integration of Cost and Business Simulation into Conceptual Launch Vehicle Design 

      Lee, Hosung; Olds, John R. (Georgia Institute of Technology, 1997-09)
      This paper reports on research that integrates cost modeling and business simulation into conceptual design environments for advanced launch vehicle programs. A new design-oriented computer tool has been developed and used ...
    • LASSO - Lunar Architecture Stochastic Simulator and Optimizer 

      Alemany, Kristina; Street, David C. (Georgia Institute of Technology, 2005-08)
      The Lunar Architecture Stochastic Simulator and Optimizer (LASSO) is a simulation-based capability, based upon discrete event simulation (DES), for evaluating and optimizing flight element options for lunar transportation ...
    • Lazarus: A SSTO Hypersonic Vehicle Concept Utilizing RBCC and HEDM Propulsion Technologies 

      Young, David Anthony; Kokan, Timothy Salim; Clark, Ian G.; Tanner, Christopher; Wilhite, Alan W. (Georgia Institute of Technology, 2006-11)
      Lazarus is an unmanned single stage reusable launch vehicle concept utilizing advanced propulsion concepts such as rocket based combined cycle engine (RBCC) and high energy density material (HEDM) propellants. These ...
    • Magel: An Advanced Partially Reusable Launch Architecture Concept 

      Steffes, Stephen R.; Olds, John R. (Georgia Institute of Technology, 2003-12)
      Magel is an advanced partially reusable launch architecture which uses two large magnetically repelled superconducting rings as the first stage system and a liquid expendable rocket as the upper stage. This architecture ...
    • The Mars Airplane: A Credible Science Platform 

      Braun, Robert D.; Wright, Henry S.; Croom, Mark A.; Levine, Joel S.; Spencer, David A. (Georgia Institute of Technology, 2004-03)
      Significant technology advances have enabled planetary aircraft to be considered as viable science platforms. Such systems fill a unique planetary science measurement gap, that of regional-scale, near-surface observation, ...
    • Mars Entry, Descent, and Landing Parametric Sizing and Design Space Visualization Trades 

      Alemany, Kristina; Wells, Grant William; Theisinger, John; Clark, Ian G.; Braun, Robert D. (Georgia Institute of Technology, 2006-08)
      Entry, descent, and landing (EDL) is a multidimensional, complex problem, which is difficult to visualize in simple plots. The purpose of this work is to develop a systematic visualization scheme that could capture Mars ...
    • Mars Gravity Biosatellite: Engineering, Science, and Education 

      Korzun, Ashley M.; Braun, Robert D.; Wagner, Erika B.; Fulford-Jones, Thaddeus R.F.; Deems, Elizabeth C.; Judnick, Daniel C.; Keesee, John E. (Georgia Institute of Technology, 2007-09)
      The Mars Gravity Biosatellite is a novel program aimed at providing data on the effects of partial gravity on mammalian physiology. Physiological problems intrinsic to prolonged stays in microgravity have long been ...
    • A Method for Allocating Reliability and Cost in a Lunar Exploration Architecture 

      Young, David Anthony; Wilhite, Alan W. (Georgia Institute of Technology, 2006-10)
      In January 2005, President Bush announced the Vision for Space Exploration. This vision involved a progressive expansion of human capabilities beyond Low Earth Orbit. Current design processes utilized to meet this vision ...
    • Mission Capture Rate versus Turnaround Time and Fleet Size for the Military Spaceplane 

      Kokan, Timothy Salim; Olds, John R. (Georgia Institute of Technology, 2002-07)
      The United States Air Force Research Laboratory (AFRL) is conducting research into a military spaceplane (MSP) through the Military Spaceplane System Technology Program Office. The goal of this program is to provide ...
    • Modeling Approach for Analysis and Optimization of a Long-Duration Mars Airplane 

      Rohrschneider, Reuben R.; Olds, John R.; Braun, Robert D.; Hutchinson, Virgil L., Jr.; Kuhl, Christopher A.; Steffes, Stephen R. (Georgia Institute of Technology, 2004-05)
      The goal of this study was to determine the best system level modeling tool for the design of a long endurance Mars airplane mission, and to use this tool to determine the best configuration for the aircraft. The mission ...
    • Moon-based Advanced Reusable Transportation Architecture 

      Nelson, Douglas K.; Marcus, Leland R.; Bechtel, Ryan S.; Cormier, Timothy A.; Weglian, John E.; Alexander, R. (Georgia Institute of Technology, 2001-07)
      Abstract: The Moon-based Advanced Reusable Transportation Architecture (MARTA) Project conducted an in-depth investigation of possible Low Earth Orbit (LEO) to lunar surface transportation systems capable of sending ...
    • A Multi-Role Architecture Using Turbine Based Combined Cycle 

      Young, James J.; Alemany, Kristina; Cole, Bjorn; Depasquale, Dominic; Dvilyanski, Mikhail; Fornuff, Jonathan; Hester, Jesse; Jones, Tom; Kipp, Devin M.; Reeves, John Daniel; Schoenfeld, Michael; Suh, Joo-Kyung (Georgia Institute of Technology, 2004-07)
      In the fall of 2003 a multi-disciplinary team consisting of graduate students from the Space Systems Design Lab (SSDL), the Aerospace Systems Design Lab (ASDL), and the Elevated Temperature Structural Durability Lab (ETSDL) ...
    • Multidisciplinary Design of a RBCC SSTO using Taguchi Methods 

      Olds, John R.; Walberg, Gerald D. (Georgia Institute of Technology, 1993-02)
      This paper presents the results of an effort to optimize a conceptual design of a conical (winged- cone) single-stage-to-orbit launch vehicle. The vehicle employs a rocket-based combined-cycle (RBCC) engine capable of four ...