Now showing items 21-40 of 60

    • Effect of Mission Requirements on the Economic Robustness of an HSCT Concept 

      Mavris, Dimitri N.; Bandte, Oliver; Schrage, Daniel P. (Georgia Institute of Technology, 1996-06)
      Design for robustness and its subset design for economic robustness and viability are two areas in current design methodology and optimization research attracting a lot of attention, as the increasing number of publications ...
    • Effects of Alternative Wing Structural Concepts on High Speed Civil transport Life Cycle Costs 

      Marx, William J.; Mavris, Dimitri N.; Schrage, Daniel P. (Georgia Institute of Technology, 1996-04)
      An integrated design and manufacturing approach allows economic decisions to be made that reflect the entire system design as a whole. In order to achieve this objective, integrated cost and engineering models were developed ...
    • Elements of an Emerging Virtual Stochastic life Cycle Design Environment 

      Mavris, Dimitri N.; DeLaurentis, Daniel A.; Hale, Mark A.; Tai, Jimmy C. M. (Georgia Institute of Technology, 1999-10)
      The challenge of designing next-generation systems that meet goals for system effectiveness, environmental compatibility, and cost has grown to the point that traditional design methodologies are becoming ineffective. ...
    • Enabling Advanced Design Methods in an Internet-Capable Framework 

      Hale, Mark A.; Mavris, Dimitri N. (Georgia Institute of Technology, 1999-10)
      The enabling of advanced design methods in an internet-capable framework will be discussed in this paper. The resulting framework represents the next generation of design and analysis capability in which engineering ...
    • An Exploration of Vulnerability Analysis and How It Integrates into the Aircraft Design and Requirements Setting Process 

      Largent, Matthew Clinton (Georgia Institute of Technology, 2000-11)
      There is a growing concern that aircraft vulnerability analysis is not being given due consideration. Stealth has had a rising importance, with susceptibility overshadowing vulnerability. Warfighters, planners, and ...
    • 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 ...
    • Forecasting Technology Uncertainty in Preliminary Aircraft Design 

      Kirby, Michelle Rene; Mavris, Dimitri N. (Georgia Institute of Technology, 1999-10)
      An evolved version of the Technology Identification, Evaluation, and Selection (TIES) method is presented that provides techniques for quantifying technological uncertainty associated with immature technologies. Uncertainty ...
    • Forecasting the Impact of Technology Infusion on Subsonic Transport Affordability 

      Kirby, Michelle Rene; Mavris, Dimitri N. (Georgia Institute of Technology, 1998-09)
      The design of complex systems, such as commercial aircraft, has drastically changed since the middle 1970's. Budgetary and airline requirements have forced many aerospace companies to reduce the amount of time and monetary ...
    • Formulation of an IPPD Methodology for the Design of a Supersonic Business Jet 

      Mavris, Dimitri N.; Hayden, William T. (Georgia Institute of Technology, 1996-10)
      The growth of international markets as well as business partnerships between U.S. and Asian-based firms has lead to an increased interest in an economically viable business jet capable of supersonic cruise and trans-Pacific ...
    • A Generalized Sizing Method for Revolutionary Concepts under Probabilistic Design Constraints 

      Nam, Taewoo (Georgia Institute of Technology, 2007-04-09)
      Internal combustion (IC) engines that consume hydrocarbon fuels have dominated the propulsion systems of air-vehicles for the first century of aviation. In recent years, however, growing concern over rapid climate changes ...
    • Generating Dynamic Models Including Uncertainty for Use in Aircraft Conceptual Design 

      DeLaurentis, Daniel A.; Mavris, Dimitri N.; Calise, Anthony J.; Schrage, Daniel P. (Georgia Institute of Technology, 1997-08)
      Accurate stability and control derivative information is essential to the configuration designer. As new, non-conventional aircraft are being designed, however, the trusted stability and control estimates usually used in ...
    • HTS Motors in Aircraft Propulsion: Design Considerations 

      Masson, Philippe J.; Soban, Danielle Suzanne; Upton, Eric George; Pienkos, Jules E.; Luongo, Cesar A. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, Inc., New York, 2005-06)
      Current high temperature superconducting (HTS) wires exhibit high current densities enabling their use in electrical rotating machinery. The possibility of designing high power density superconducting motors operating at ...
    • Implementation of a Physics-Based Decision-Making Framework for Evaluation of the Multidisciplinary Aircraft Uncertainty 

      Briceño, Simón Ignacio; Mavris, Dimitri N. (Georgia Institute of Technology, 2003-09)
      In today's business climate, aerospace companies are more than ever in need of rational methods and techniques that provide insights as to the best strategies which may be pursued for increased profitability and risk ...
    • Implementation of a Technology Impact Forecast Technique on a Civil Tiltrotor 

      Mavris, Dimitri N.; Baker, Andrew Paul; Schrage, Daniel P. (Georgia Institute of Technology, 1999-05)
      The methodology presented in this paper is concerned with the ability to make informed decisions early in the design time line in order to provide a feasible, viable and robust system to the customer. Increasingly, the ...
    • An Improved Procedure for Prediction of Drag Polars of a Joined Wing Concept Using Physics-Based Response Surface Methodology 

      Rallabhandi, Sriram Kishore; Cagatay, Erol; Mavris, Dimitri N. (Georgia Institute of Technology, 2001-09)
      Creation and utilization of accurate drag polars is essential in the aircraft sizing and synthesis process. Existing sizing and synthesis codes are based on historical data and cannot capture the aerodynamics of a ...
    • An Integrated Approach to Military Aircraft Selection and Concept Evaluation 

      Mavris, Dimitri N.; DeLaurentis, Daniel A. (Georgia Institute of Technology, 1995-09)
      The design (or evaluation) of military aircraft, by nature, is a process consisting of conflicting goals and objectives at the conceptual, preliminary, and detailed level. Affordability, mission capability, availability ...
    • Integrating Design and Manufacturing for the High Speed Civil Transport 

      Marx, William J.; Mavris, Dimitri N.; Schrage, Daniel P. (Georgia Institute of Technology, 1994-09)
      The aerospace industry is currently addressing the problem of integrating design and manufacturing. Because of the difficulties associated with using conventional, procedural techniques and algorithms, it is the authors' ...
    • An Intelligent, Robust Approach to Volumetric Aircraft Sizing 

      Upton, Eric George (Georgia Institute of Technology, 2007-05-09)
      Advances in computational power have produced great strides in the later design and production portions of an aircraft s life cycle, and these advances have included the internal layout component of the design and manufacturing ...
    • IPPD Through Robust Design Simulation for an Affordable Short Haul Civil Tiltrotor 

      Mavris, Dimitri N.; Baker, Andrew Paul; Schrage, Daniel P. (Georgia Institute of Technology, 1997-04)
      Beyond the Bell/Boeing 609, the next step in civil tiltrotor evolution will most likely be a larger capacity vehicle (~ 40 passenger class) similar to NASA? vision of a Short Haul Civil Tiltrotor (SHCT). This vehicle will ...
    • 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, ...