Now showing items 1-20 of 304

    • Abstraction and Modeling Hypothesis for Future Transportation Architectures 

      DeLaurentis, Daniel A.; Lewe, Jung-Ho; Schrage, Daniel P. (Georgia Institute of Technology, 2003-07)
      The goal of a future transportation architecture is an expansion in mobility, enabling new types of travel and commerce currently not affordable and thus producing induced societal benefit. From the design perspective, the ...
    • Adaptive Selection of Aircraft Engine Technologies in the Presence of Risk 

      Roth, Bryce Alexander; Graham, Matthew; Mavris, Dimitri N.; Macsotai, Noel I. (Georgia Institute of Technology, 2002-06)
      The objective of this paper is to describe a method for selecting optimal engine technology solution sets while simultaneously accounting for the presence of technology risk. This method uses a genetic algorithm in conjunction ...
    • Adaptive Selection of Engine Technology Solution Sets from a Large Combinatorial Space 

      Roth, Bryce Alexander; German, Brian Joseph; Mavris, Dimitri N.; Macsotai, Noel I. (Georgia Institute of Technology, 2001)
      This paper describes a method to assist in selecting technology concepts from amongst a pool of candidates such that the resulting concepts yield the best compromise between conflicting sign performance and technology risk. ...
    • Adaptive Selection of Pareto Optimal Engine Technology Solution Sets 

      Roth, Bryce Alexander; Graham, Matthew; Mavris, Dimitri N.; Macsotai, Noel I. (Georgia Institute of Technology, 2002)
      Successful selection of propulsion system technologies for development and incorporation into new engine designs requires careful balance among many competing design objectives (i.e. performance, cost, risk, etc.). One ...
    • Advanced Design of Complex Systems Using the Collaborative Visualization Environment (CoVE) 

      Mavris, Dimitri N.; Biltgen, Patrick Thomas; Weston, Neil R. (Georgia Institute of Technology, 2005-01)
      This paper summarizes and introduces the Collaborative Visualization Environment (CoVE) at the Aerospace Systems Design Laboratory (ASDL)at Georgia Tech. The CoVE is an advanced visualization facility consisting of an 18 ...
    • Aerodynamic Drag Loss Chargeability and Its Implications in the Vehicle Design Process 

      Roth, Bryce Alexander (Georgia Institute of Technology, 2001-10)
      The purpose of this paper is to explore the nature of aerodynamic drag losses, relate them to aerothermodynamic losses in the aircraft as a whole, and develop methods for assessing drag chargeability. The concept of the ...
    • Aeroelastic Analysis of a Composite Wingbox with Varying Root Flexibility 

      De Baets, Peter Wilfried Gaston; Battoo, Rupinder S.; Mavris, Dimitri N. (Georgia Institute of Technology, 2000-04)
      The research looked into the aeroelastic properties and modal response of a composite rectangular wingbox. This research attempted to assess the sensitivity of the flutter speed, divergence speed and modal response when ...
    • Aeroelastic Tailoring of a Civil Tiltrotor Configuration 

      Stettner, Martin; Mavris, Dimitri N.; Schrage, Daniel P. (Georgia Institute of Technology, 1995-01)
      Progress in establishing an analysis package and design/optimization framework for preliminary design of a civil tiltrotor aircraft is reported. Updates to the sizing/performance program VASCOMP and Equivalent LAminated ...
    • Affordability Assessment for a Subsonic Transport 

      Mavris, Dimitri N.; Garcia, Elena (Georgia Institute of Technology, 1999-06)
      Military budget cuts and increased competition in the commercial market have shifted the focus of aircraft design to include affordability concerns. This has resulted in the need for increased knowledge in the early stages ...
    • Analysis of Advanced Technology Impact on HSCT Engine Cycle Performance 

      Roth, Bryce Alexander; Mavris, Dimitri N. (Georgia Institute of Technology, 1999-06)
      The objective of this paper is to describe and apply methods that could assist the propulsion system designer in the evaluation and selection of propulsion technologies. The focus here is on the aerothermo-dynamic aspects ...
    • Analyzing Technology Interactions 

      Patel, Chirag B.; Mavris, Dimitri N. (Georgia Institute of Technology, 2006-09)
      Technology selection is a crucial step in the design of new complex systems. When many technologies are to be selected from a large pool of available technologies, it is very important that the interactions among these ...
    • Application of a New Economic Analysis Tool to a Two-Stage-to-Orbit RBCC Launch Vehicle Design 

      Olds, John R.; Lee, Hosung (Georgia Institute of Technology, 1996-09)
      As aerospace industries are forced to compete in an environment of declining federal budgets and increased competition, 'design for performance' is quickly giving way to 'design for cost.' Many modern launch vehicle ...
    • Application of a State-Space Wake Model to Tiltrotor Wing Unsteady Aerodynamics 

      Stettner, Martin; Schrage, Daniel P.; Peters, D. A. (David A.) (Georgia Institute of Technology, 1994-02)
      The Peters/He Finite State Wake Model is described in its application to fixed wing aerolasticity. Expressions for coupling this model with a wing, aerodynamically represented by a flat plate with a trailing edge flap, are ...
    • An Application of a Technology Impact Forecasting (TIF) Method to an Uninhabited Combat Aerial Vehicle 

      Mavris, Dimitri N.; Soban, Danielle Suzanne; Largent, Matthew Clinton (Georgia Institute of Technology, 1999-10)
      In today's atmosphere of lower U.S. defense spending and reduced research budgets, determining how to allocate resources for research and design has become a critical and challenging task. In the area of aircraft design ...
    • An Application of Artificial Intelligence for Computer-Aided Design and Manufacturing 

      Marx, William J.; Schrage, Daniel P.; Mavris, Dimitri N. (Georgia Institute of Technology, 1995-07)
      The knowledge required to integrate aircraft manufacturing characteristics and constraints into the structural design process is beyond the proficiency of a single engineer. Concurrent Engineering (CE) enables the integration ...
    • Application of Probabilistic Methods for the Determination of an Economically Robust HSCT Configuration 

      Mavris, Dimitri N.; Bandte, Oliver; Schrage, Daniel P. (Georgia Institute of Technology, 1996-09)
      This paper outlines an approach for the determination of economically viable robust design solutions using the High Speed Civil Transport (HSCT) as a case study. Furthermore, the paper states the advantages of a probability ...
    • An Application of Response Surface Methodology to the Design of Tipjet Driven Stopped Rotor/Wing Concepts 

      Tai, Jimmy C. M.; Mavris, Dimitri N.; Schrage, Daniel P. (Georgia Institute of Technology, 1995-09)
      The possibility of a new aircraft that is capable of solving the increasing demand of inter-city transportation has attracted the attention of the aerospace industry for quite some time. Under the High Speed Rotorcraft ...
    • An Approach for Calculating the Cost of Launch Vehicle Reliability 

      Krevor, Zachary C.; Wilhite, Alan W. (Georgia Institute of Technology, 2007-09)
      The goal of this paper is to determine the cost of increasing launch vehicle reliability during conceptual design. The launch vehicle mission requirements are held constant while various reliability strategies are evaluated ...
    • An Approach for the Intelligent Assessment of Future Technology Portfolios 

      Kirby, Michelle Rene; Mavris, Dimitri N. (Georgia Institute of Technology, 2002-01)
      A solid business case is highly dependent upon a strategic and intelligent technology research and development plan, or portfolio, in the early phases of product design. The embodiment of a strategic technology development ...
    • An Approach to Tiltrotor Wing Multidisciplinary Optimization through Increased Productivity 

      Stettner, Martin; Schrage, Daniel P. (Georgia Institute of Technology, 1992-09)
      The paper describes one way to approach the multidisciplinary task of optimizing a tiltrotor wing structure which is equipped with an active flutter suppression system. Objective function is a productivity index, as a ...