Now showing items 181-193 of 193

    • Uncertainty Modeling and Management in Multidisciplinary Analysis and Synthesis 

      DeLaurentis, Daniel A.; Mavris, Dimitri N. (Georgia Institute of Technology, 2000-01)
      The complex, multidisciplinary nature of aerospace design problems, as well as the requirement to examine life-cycle characteristics, have exposed a need to model and manage uncertainty. In this paper, a formal approach ...
    • An Unstructured Wave Drag code for the Preliminary Design of Future Supersonic Aircraft 

      Rallabhandi, Sriram Kishore; Mavris, Dimitri N. (Georgia Institute of Technology, 2003-06)
      In a preliminary design environment, the designer needs to have freedom to quickly evaluate different configurations and come up with the most promising configuration. In the supersonic regime, most linearized codes that ...
    • Use of a Conceptual Sizing Tool for Conceptual Design of Tactical Missiles (U) 

      Frits, Andrew P.; Fleeman, Eugene L.; Mavris, Dimitri N. (Georgia Institute of Technology, 2002-11)
      This paper illustrates the use of a conceptual sizing tool for the design of tactical missiles. The sizing tool, called the Tactical Missile Design (TMD) spreadsheet, was developed to allow the user to quickly generate ...
    • Use of Agents to Implement an Integrated Computing Environment 

      Hale, Mark A.; Craig, James I. (Georgia Institute of Technology, 1995-03)
      Integrated Product and Process Development (IPPD) embodies the simultaneous application of both system and quality engineering methods throughout an iterative design process. The use of IPPD results in the time-conscious, ...
    • Use of Flight Simulation in Early Design: Formulation and Application of the Virtual Testing and Evaluation Method 

      Scharl, Julien; Mavris, Dimitri N.; Burdun, Ivan Y. (Georgia Institute of Technology, 2000-10)
      In current design practices, safety, operational and han-dling criteria are often overlooked until late design stages due to the difficulty in capturing such criteria early enough in the design cycle and in the presence ...
    • Use of Probabilistics in Campaign Analysis 

      Soban, Danielle Suzanne; Mavris, Dimitri N. (Georgia Institute of Technology, 2001-09)
      Significant advances have been made recently in applying probabilistic methods to aerospace vehicle concepts. Given the explosive changes that are occurring in todays political, social, and technological climate, it makes ...
    • Use of Probability of Success as an Independent Variable for Decision-Making 

      Frits, Andrew P.; Mavris, Dimitri N. (Georgia Institute of Technology, 2004-09)
      Early phases of design are characterized by risk and uncertainty. Appropriate accounting for this uncertainty is an important requirement for any designer. This work suggests collapsing risk and uncertainty into a single ...
    • Using Response Surface Metamodels to Optimize the Aerodynamic Performance of a High Speed Standoff Missile within a Multi-Disciplinary Environment 

      Won, Henry W.; Levine, Simon B.; Mavris, Dimitri N.; Pfaender, Holger (Georgia Institute of Technology, 2002-10)
      This report summarizes the feasibility of implementing a metamodel, consisting of Response Surface Equations (RSE), in a High Speed Standoff Missile (HSSM) multi-disciplinary mission analysis. The metamodel, which is a ...
    • Viable Designs Through a Joint Probabilistic Estimation Technique 

      Bandte, Oliver; Mavris, Dimitri N.; DeLaurentis, Daniel A. (Georgia Institute of Technology, 1999-10)
      A key issue in complex systems design is measuring the 'goodness' of a design, i.e. finding a criterion through which a particular design is determined to be the 'best.' Traditional choices in aerospace systems design, ...
    • A Work Availability Perspective of Turbofan Engine Performance 

      Roth, Bryce Alexander; Mavris, Dimitri N. (Georgia Institute of Technology, 2001-01)
      This paper presents a work availability perspective on the thermodynamic performance of the turbofan engine and contrasts this with the classic presentation, which describes performance based primarily on cycle efficiency. ...
    • A Work Potential Perspective of Engine Component Performance 

      Roth, Bryce Alexander (Georgia Institute of Technology, 2001-07)
      There is a strong interest within the propulsion community in applying the concept of thermodynamic work potential as a universal figure of merit for gauging the performance of prime-movers. In particular, exergy, gas ...
    • Work Transfer Analysis of Turbojet and Turbofan Engines 

      Roth, Bryce Alexander (Georgia Institute of Technology, 2004)
      This paper explores the application of work transfer analysis to turbojet and turbofan engines. Emphasis is placed on understanding and applying the basic analysis method. The relationships between component performance ...
    • A Work Transfer Perspective of Propulsion System Performance 

      Roth, Bryce Alexander (Georgia Institute of Technology, 2004-07)
      This paper suggests an approach to analysis of propulsion system performance that focuses entirely on thermodynamic work potential (and loss thereof) as a universal basis for gauging engine performance. This work potential ...