Conference Program

Monday 30-Aug-2004 | Tuesday 31-Aug-2004 | Wednesday 01-Sep-2004 |

0800 - 0845 KEYNOTE ADDRESS: Winging it – Developing New Metrics and Methods for Re-shaping Future Aircraft Ballroom A-B Terry A. Weisshaar, Program Manager, DARPA – Defense Sciences Office ---- Keynote Abstract: Morphing aircraft change shape drastically, in the air, on the fly, to allow them to adapt to radical changes in advanced mission environments, such as changing from a loitering airplane to an attacking airplane. Unfortunately, the metrics used to create effective morphing designs – actuator effectiveness and energy input, mechanism weight and topology and materials selection – are not commonly used by today’s MDO methodology. This talk describes DARPA’s morphing aircraft program, the component technologies involved in morphing aircraft design and how success is measured. The presentation will suggest how the MDO community can respond to the challenges of this type of aircraft design to provide rapid knowledge generation.

Session 41- MAO-41 Approaches to Distributed and Collaborative Design (Invited) Ten Broeck Chaired by: I. KROO, Stanford University, Stanford, CA, and H. THOMAS, Altair Engineering Inc, Irvine, CA

0900 AIAA-2004-4544 Decomposition of Multidisciplinary Optimization Problem: Formulations and Application to a Simplified Wing Design C. Tribes, J. Dubé and J. Trépanier, Ecole Polytechnique de Montréal, Montréal, Québec, Canada

0930 AIAA-2004-4545 Flexible Approximation Model Approach for Bi- Level Integrated System Synthesis H. Kim, S. Ragon, G. Soremekun and B. Malone, Phoenix Integration Inc., Blacksburg, VA; J. Sobieszczanski-Sobieski, NASA Langley Research Center, Hampton, VA

1000 AIAA-2004-4546 Target Feasibility Achievement in Enterprise- Driven Hierarchical Multidisciplinary Design H. Kim, D. Kumar and W. Chen, Northwestern University, Evanston, IL; P. Papalambros, University of Michigan, Ann Arbor, MI

1030 AIAA-2004-4547 A New Modular Approach for Tightly Coupled Fluid/Structure Analysis G. Guruswamy, NASA Ames Research Center, Moffett Field, CA

1100 AIAA-2004-4548 Incorporation of Preferences in Multi- Objective Concurrent Subspace Optimization C. Huang and C. Bloebaum, University at Buffalo, Buffalo, NY

1130 AIAA-2004-4549 Robust Multiobjective Optimization Through Collaborative Optimization and Linear Physical Programming C. McAllister, Louisiana State University, Baton Rouge, LA; T. Simpson, Pennsylvania State University, University Park, PA; K. Lewis, State University of New York, Buffalo, NY; A. Messac, Rennselaer Polytechnic Institute, Troy, NY

1200 AIAA-2004-4550 A Contribution- Based Decomposition Method for Multidisciplinary Engineering Optimization S. Xie, J. Milthorpe and W. Smith, University of New South Wales at ADFA, Canberra, Australia; R. Wei, University of Queensland, Brisbane, Australia

Session 42- MAO-42 Conceptual System Design Applications Webster's Meeting Room Chaired by: A. GIUNTA, Sandia National Laboratories, Albuquerque, NM, and D. BEESON, GE Aircraft Engines, Cincinnati, OH

0900 AIAA-2004-4551 Multidisciplinary System Optimization of a Spacecraft Interferometer Testbed D. Howell and O. de Weck, Massachusetts Institute of Technology, Cambridge, MA

0930 AIAA-2004-4552 Nuclear Electric Vehicle Optimization Toolset (NEVOT) M. Tinker, E. Stewart, B. Patton, M. Coffman and R. Newby, NASA Marshall Space Flight Center, Huntsville, AL; L. Qualls, Oak Ridge National Laboratory, Oak Ridge, TN

1000 AIAA-2004-4553 Fuzzy Pareto Frontiers in Multidisciplinary System Architecture Analysis R. Smaling and O. de Weck, Massachusetts Institute of Technology, Bedford, MA

1030 AIAA-2004-4554 Application of Multidisciplinary Design Optimization for a Diesel Engine Cooling System J. Morankar and C. Bloebaum, University at Buffalo, Buffalo, NY

1100 AIAA-2004-4555 Initial Optimization Studies of Multifunctional Structures With Electronic Components S. Lamberson and W. Crossley, Purdue University, West Lafayette, IN

1130 AIAA-2004-4556 Multicriteria and Discrete Configuration and Design Optimization with Applications for Satellites T. Pühlhofer, H. Langer, H. Baier and M. Huber, Technische Universität München, Garching, Germany

1200 AIAA-2004-4557 Development of an Integrated Design Environment for Space Satellite Structures M. Yoshimura, Y. Murase, M. Yamauchi, K. Izui and S. Nishiwaki, Kyoto University, Kyoto, Japan; H. Ohba, Japan Aerospace Exploration Agency, Tsukuba, Japan

Session 43- MAO-43 Emerging Methods and Applications in Structural Design Van Rensselaer Chaired by: A. JOHNSTON, Sverdrup Technology Inc, Huntsville, AL, and S. VAN DESSEL, Rensselaer Polytechnic Institute, Troy, NY

0900 AIAA-2004-4558 Hybrid Cellular Automata: a biologically- inspired structural optimization technique A. Tovar, N. Patel, G. Letona, K. Amit and J. Renaud, University of Notre Dame, Notre Dame, IN; B. Sanders, Air Force Research Laboratory, Wright-Patterson AFB, OH

0930 AIAA-2004-4559 Load Updating for Finite Element Models Using Reduced Number of Unknown Load Coefficients J. Li and R. Kapania, Virginia Polytechnic Institute and State University, Blacksburg, VA

1000 AIAA-2004-4560 Study of a Honeycomb- Type Rigidified Inflatable Structure for Housing R. Khire, S. Van Dessel, A. Messac and A. Mullur, Rensselaer Polytechnic Institute, Troy, NY

1030 AIAA-2004-4561 Study of the Mechanical Behavior of a Post- buckled Circular Plates Under In- plane Load Using a Reduced- Order Model W. Faris, International Islamic University Malaysia, Kuala Lumpur, Malaysia; M. Abdalla, Virginia Tech, Blacksburg, VA

1100 AIAA-2004-4562 Weights Analysis of Space Launch Vehicles in an Advanced Engineering Environment X. Jiang and P. Gage, Eloret Corp, Moffett Field, CA; J. Vander Kam, NASA Ames, Moffett Field, CA

1130 AIAA-2004-4563 A Phase- Field Method for Structural Topology Optimization with Three Material Phases M. Wang and S. Zhou, Chinese University of Hong Kong, Shatin, Hong Kong

1200 AIAA-2004-4564 Incorporating Topological Derivatives into Level Set Methods for Structural Topology Optimization X. Wang and Y. Mei, Dalian University of Technology, Dalian, China (prc); M. Wang, Chinese University of Hong Kong, Shatin, Hong Kong

Session 44- MAO-44 MDO Methodologies: Design Tools and Applications Ballroom E Chaired by: J. MARTINS, University of Toronto, Toronto, Canada, and V. BALABANOV, Vanderplaats Research & Development Inc, Colorado Springs, CO

0900 AIAA-2004-4565 The Integrated Hypersonic Aeromechanics Tool (IHAT), Build 4 M. Baker, M4 Engineering Inc., Long Beach, CA; M. Munson, Naval Air Systems Command, China Lake, CA; G. Hoppus, Jacobs Sverdrup Naval Systems Group, Ridgecrest, CA; K. Alston, Advatech Pacific Inc., Redlands, CA

0930 AIAA-2004-4566 What- If Post- Processing of General- Purpose Optimization Results Using VisualDOC G. Venter, G. Quinn, V. Balabanov and G. Vanderplaats, Vanderplaats Research and Development Inc., Colorado Springs, CO

1000 AIAA-2004-4567 MDOPT – A Multidisciplinary Design Optimization System Using Higher Order Analysis Codes S. LeDoux and W. Herling, The Boeing Company, Seattle, WA; R. Ratcliff, FutureTek Net Services, Austin, TX; G. Fatta, The Boeing Company, Seattle, WA

1030 AIAA-2004-4568 The Advanced Trade Space Visualizer: An Engineering Decision- Making Tool G. Stump, M. Yukish and T. Simpson, Pennsylvania State University, State College, PA

1100 AIAA-2004-4569 Multidisciplinary Optimization of Multistage Axial Turbine Flow Path L. Moroz and Y. Govorushenko, SoftInWay Inc., Burlington, MA

1130 AIAA-2004-4570 A Design Window Evaluation and Display System for Fast Breeder Reactor's In- Vessel Thermohydraulics Designs T. Muramatsu, Japan Nuclear Cycle Development Institute, O-arai, Ibaraki, Japan

1200 AIAA-2004-4571 A New Layout Design Methodology of Heat Transfer System Based on Adaptive Growth Law K. Yamazaki, Kanazawa University, Kanazawa, Ishikawa, Japan; X. Ding, University of Shanghai for Science and Technology, Shanghai, China (prc)

Session 45- MAO-45 Modeling Complexities in Analysis and Optimization Beverwyck Chaired by: A. STRIZ, University of Oklahoma, Norman, OK, and N. KIM, University of Florida, Gainesville, FL

0900 AIAA-2004-4574 Analytical Design Tools for Autonomous Vehicle Unit Load Storage and Retrieval Systems M. Fukunari and C. Malmborg, Rensselaer Polytechnic Institute, Troy, NY

0930 AIAA-2004-4573 Extended Radial Basis Functions: More Flexible and Effective Metamodeling A. Mullur and A. Messac, Rensselaer Polytechnic Institute, Troy, NY

1000 AIAA-2004-4575 Optimization Using Response Surface for Impact Behavior of Triangular Tubes J. Sun and S. Ekwaro-Osire, Texas Tech University, Lubbock, TX

1030 AIAA-2004-4576 High Fidelity Aeroelastic Analyses Using Nonlinear Updates to Aerodynamic Influence Coefficient Matrices G. Andersen and D. Cowan, NextGen Aeronautics, Torrance, CA

1100 AIAA-2004-4577 A Risk Adjusting Model Fusion Framework for Optimizing Models with Variable Fidelity M. El-Beltagy, Cairo University, Cairo, Egypt

1130 AIAA-2004-4578 Direct Optimization of Experimental Designs J. Auzins, Riga Technical University, Jurmala, Latvia

1200 AIAA-2004-4534 Refined Semi- analytical Design Sensitivity Analysis with Commercial Finite Element Package T. Lee, J. Yoo and M. Lee, Hanyang University, Seoul, South Korea

Session 46- MAO-46 Nature-Inspired Optimization Methods Ballroom C Chaired by: J. CHRISSIS, Air Force Institute of Technology, Wright-Patterson AFB, OH, and N. SOMANATH, United Technologies Corporation, East Hartford, CT

0900 AIAA-2004-4579 Constrained Optimization Using Cellular Automata S. Goel, University at Albany, Albany, NY; S. Talya, GE Global Research Center, Niskayuna, NY

0930 AIAA-2004-4580 Discrete, Continuous, and Constrained Optimization Using Collectives S. Bieniawski and I. Kroo, Stanford University, Stanford, CA; D. Wolpert, NASA Ames Research Center, Moffett Field, CA

1000 AIAA-2004-4581 Discrete Probabilistic Simulated Annealing with Local Search (DPSAwLS) M. Ogot, Pennsylvania State University, University Park, PA; S. Aly, Mechanical Solutions Inc., Parsippany, NJ

1030 AIAA-2004-4582 Ant Conversation – An Enhancement of ACO M. Karimifar, University of Shahid-Bahonar, Kerman, Iran; J. Chien, Simon Fraser University, Burnaby, Canada

1100 AIAA-2004-4583 Force Identification of Mechanical Systems by Using Particle Swarm Optimization J. Rojas, F. Viana, D. Rade, V. Steffen and Jr, Federal University of Uberlandia, Uberlandia, Brazil

1130 AIAA-2004-4584 Parallel Simulated Annealing Using Simplex Method Y. Luo and G. Tang, National Univ. of Defense Technology, Chang-Sha, Hu-nan, China (prc)

1200 AIAA-2004-4649 Characterization and Detection of Delamination in Composite Laminates Using Artificial Neural Networks C. Deenadayalu and A. Chattopadhyay, Arizona State University, Tempe, AZ; H. Chen, California State University, Long Beach, CA

Session 47- MAO-47 Novel Approaches to Optimization Under Uncertainty Capitol Room Chaired by: Z. MOURELATOS, Oakland University, Rochester, MI, and W. CHEN, Northwestern University, Evanston, IL

0900 AIAA-2004-4585 Vertex- Domain Fuzzy Analysis Method for Possibility- Based Design Optimization K. Choi, L. Du and B. Youn, University of Iowa, Iowa City, IA

0930 AIAA-2004-4586 Reliability Estimation and Design with Insufficient Data Based on Possibility Theory Z. Mourelatos and J. Zhou, Oakland University, Rochester, MI

1000 AIAA-2004-4587 Seminal Concepts for a New Approach to Continuous- Variable OUU: Probabilistic Ordinal Optimization V. Romero, Sandia National Laboratories, Albuquerque, NM; C. Chen, George Mason University, Fairfax, VA

1030 AIAA-2004-4588 Robust Optimal Design with Differential Evolution M. Rai, NASA Ames, Moffett Field, CA

1100 AIAA-2004-4589 Relative Entropy- Based Probabilistic Sensitivity Analysis Methods for Design Under Uncertainty H. Liu and W. Chen, Northwestern University, Evanston, IL; A. Sudjianto, Ford Motor Company, Dearborn, MI

1130 AIAA-2004-4590 Optimization of Stochastic Mechanical Systems using Polynomial Chaos Expansion S. Choi and R. Grandhi, Wright State Univ., Dayton, OH; R. Canfield, Air Force Institute of Technology, Wright-Patterson AFB, OH

1200 AIAA-2004-4591 Framework for Mixed- Variable Optimization Under Uncertainty Using Surrogates and Statistical Selection T. Sriver and J. Chrissis, Air Force Institute of Technology, Wright-Patterson AFB, OH

Session 48- MAO-48 Shape and Topology Optimization: Applications Ballroom D Chaired by: V. TOROPOV, Altair Engineering, Coventry, Great Britain, and P. BERAN, Air Force Research Laboratory, Wright-Patterson AFB, OH

0900 AIAA-2004-4593 Structural Shape and Topology Optimization Considering Both Performance and Manufacturing Cost I. Kim, W. Nadir and O. de Weck, Massachusetts Institute of Technology, Cambridge, MA

0930 AIAA-2004-4594 Integrate Topology/Shape/Size Optimization into Upfront Automotive Component Design C. Chen and C. Young, Visteon Corporation, Dearborn, MI

1000 AIAA-2004-4595 Topometry Optimization: A New Capability to Perform Element by Element Sizing Optimization J. Leiva, Vanderplaats R&D, Novi, MI

1030 AIAA-2004-4596 An Analyticall Bi- Directional Growth Parameterization to Obtain Optimal Castable Topology Designs J. Leiva, B. Watson and I. Kosaka, Vanderaplaats R&D, Novi, MI

1100 AIAA-2004-4597 Development of an Optimization Plug- In for GENESIS® for Use with Femap® Software D. Ghosh, Vanderplaats R&D, Colorado Springs, CO

1130 AIAA-2004-4598 A Status of Shape Optimization in Industrial Car Body Development Aiming at Large Structural Changes D. Heiserer, BMW, Munich, Germany

Session 49- MAO-49 Strategic Issues Schuyler Chaired by: J. SCHWEIGER, EADS-Deutschland, Muenchen, Germany, and T. ZANG, NASA Langley Research Center, Hampton, VA

0900 AIAA-2004-4599 Object Models for Distributed MAO Environments that Promotes CAE Interoperability R. Kolonay, Air Force Research Lab, Wright-Patterson AFB, OH

0930 AIAA-2004-4600 An Investigation of Equilibrium Stability in Decentralized Design Using Nonlinear Control Theory V. Chanron and K. Lewis, University at Buffalo, Buffalo, NY

1000 AIAA-2004-4601 Reusable Design Processes via Modular, Executable, Decision- Centric Templates J. Panchal, M. Fernández, C. Paredis and F. Mistree, Georgia Institute of Technology, Atlanta, GA

1030 AIAA-2004-4602 Clean- Sheet Design and Initial Optimization in Non- Traditional Multidisciplinary Design Problems D. Aronstein, Raytheon Aircraft Company, Wichita, KS

1100 AIAA-2004-4603 Data Modeling and Handling for Analysis and Visualization in a Collaborative Setting A. Vaze, University at Buffalo, Buffalo, NY; V. Kalivarapu and E. Winer, Iowa State University, Ames, IA

1130 AIAA-2004-4605 Variable Resource Allocation Using Multidisciplinary Optimization: Initial Investigations for System of Systems W. Crossley, Purdue University, West Lafayette, IN

Session 50- MAO-50 MDO Methodologies: Aircraft Design Ballroom E Chaired by: A. SULEMAN, University of Victoria, Victoria, Canada, and K. WILLCOX, Massachusetts Institute of Technology, Cambridge, MA

1400 AIAA-2004-4606 A Subsonic Aircraft Design Optimization with Neural Network and Regression Approximators S. Patnaik, R. Coroneos, J. Guptill, D. Hopkins and W. Haller, NASA Glenn Research Center, Cleveland, OH

1430 AIAA-2004-4607 A Decomposition Strategy Applied to the Optimal Synthesis/Design and Operation of an Advanced Fighter Aircraft System D. Rancruel and M. von Spakovsky, Virginia Tech, Blacksburg, VA

1500 AIAA-2004-4608 Enhancement of Aircraft Roll Maneuvers Using the Spectral Level Optimization Method A. Gomes, Instituto Superior Técnico, Lisbon, Portugal; A. Suleman, University of Victoria, Victoria, Canada

1530 AIAA-2004-4610 The Main Features of IOSO Technology Usage for Multi- Objective Design Optimization I. Egorov, G. Kretinin, I. Leshchenko and S. Kuptzov, IOSO Technology Center, Moscow, Russia

1600 AIAA-2004-4611 Minimization of Induced Drag of Elastic Airplane S. Kuzmina, F. Ishmuratov and V. Kuzmin, TsAGI, Zhukovsky, Russia

1630 AIAA-2004-4613 Multidiscilplinary Design Optimization of a Naval Frigate D. Peri and E. Campana, INSEAN, Roma, Italy; R. Dattola, IT Navy, Roma, Italy

Session 51- MAO-51 Novel Applications of Design and Optimization Under Uncertainty Capitol Room Chaired by: M. FUCHS, TelAviv University, Ramat Aviv, Israel, and K. CHOI, University of Iowa, Iowa City, IA

1400 AIAA-2004-4614 Application of Reduced Order Models for the Stochastic Design Optimization of Dynamic Systems M. Allen and K. Maute, University of Colorado, Boulder, CO

1430 AIAA-2004-4615 Design Sensitivity Analysis and Optimization of High Frequency Radiation Problems Using Energy Finite Element Method and Energy Boundary Element Method K. Choi and J. Dong, University of Iowa, Iowa City, IA; N. Vlahopoulos, A. Wang and W. Zhang, University of Michigan, Ann Arbor, MI

1500 AIAA-2004-4616 An Efficient Markov Chain Monte Carlo Simulation of a Stochastic Inverse Radiation Problem J. Wang and N. Zabaras, Cornell University, Ithaca, NY

1530 AIAA-2004-4617 Probabilistic Design & Optimization of Aging Structures S. Vittal, GE Power Systems, Greenville, SC; P. Hajela, Rensselaer Polytechnic Institute, Troy, NY

1600 AIAA-2004-4618 A Convex Hull Approach for the Reliability- Based Optimization of Transient Dynamic Problems P. Ramu, University of Florida, Gainesville, FL; S. Missoum, Pole Universitaire Leonard De Vinci, Paris La Defense, France; R. Haftka, University of Florida, Gainseville, FL

1630 AIAA-2004-4619 Uncertainty- Based Design Optimization of a Micro Piezoelectric Composite Energy Reclamation Device S. Gurav, Delft University of Technology, Delft, The Netherlands; A. Kasyap, M. Sheplak, L. Cattafesta and R. Haftka, University of Florida, Gainesville, FL; F. van Keulen, Delft University of Technology, Delft, The Netherlands

1700 AIAA-2004-4621 Multidisciplinary Reliability Design of Electronics Packaging K. Hirohata, K. Hisano, H. Takahashi and T. Kawakami, Toshiba Corporation, Kawasaki, Kanagawa, Japan; Q. Yu and M. Shiratori, Yokohama National University, Yokohama, Kanagawa, Japan

Session 52- MAO-52 Optimization Methods for Aerospace Applications Ballroom C Chaired by: S. KODIYALAM, Silicon Graphics Inc, Mountain View, CA, and R. KOLONAY, Air Force Research Laboratory, Wright-Patterson AFB, OH

1400 AIAA-2004-4622 On Improving Efficiency of Differential Evolution for Aerodynamic Shape Optimization Applications N. Madavan, NASA Ames Research Center, Moffett Field, CA

1430 AIAA-2004-4623 Comparison of Numerical Noise in Design Objectives Using LES and Turbulence Models J. Borggaard and T. Iliescu, Virginia Tech, Blacksburg, VA; D. Pelletier, Ecole Polytechnique de Montreal, Montreal, QC, Canada; K. Vugrin, Virginia Tech, Blacksburg, VA

1500 AIAA-2004-4625 Multidisciplinary Aircraft Design and Optimisation Using a Robust Evolutionary Technique with Variable Fidelity Models L. González, E. Whitney and K. Srinivas, University of Sydney, Sydney, Australia; J. Périaux, Dassault Aviation, Paris, France

1530 AIAA-2004-4626 Multidisciplinary Optimisation and Integration of a Gas Turbine Disk and its Blade Dovetail Roots F. Arace and S. Chiavazza, Politecnico di Torino, Torino, Italy; G. De Poli and C. Frola, Avio Group, Torino, Italy

1600 AIAA-2004-4627 A Combined Model for Optimal Tolerance Allocation of Assemblies Y. Huang and C. Shiau, National Taiwan University, Taipei, Taiwan (roc)

1630 AIAA-2004-4628 An Efficient Method for Aerodynamic Shape Optimization S. Hazra, University of Trier, Trier, Germany

1700 AIAA-2004-4543 Configuration Design of a Generic Air- Breathing Aerospace Vehicle Considering Fidelity Uncertainity U. Josyula and S. Panneerselvam, Defence Research and Development Laboratory, Hyderabad, India; K. Sudhakar and P. Mujumdar, Indian Institute of Technology, Mumbai, India

Session 53-MAO-53 1400 - 1630 PANEL: Resolving Tradeoffs in MDO: Performance, Cost, and DFX Pearl Street Room Panel explores the implications of various tradeoff-resolving approaches and highlights the mathematical and non-mathematical arguments involved in tradeoff resolution. Much of engineering design and MDO comes down to resolving tradeoffs between competing objectives. Two approaches have been embraced by the engineering design community: On the one hand multiobjective optimization seeks to identify Pareto-optimal, non-dominated solutions from which a final design can be chosen. In this approach preferences are expressed after optimization has converged. Utility-based or decision-based design (DBD) on the other hand combines various objectives into a scalar, dimensionless utility that reflects the "goodness" of a particular solution. In this approach preferences are generally expressed before optimization begins. The panel will explore the implications of each approach and highlight the mathematical and non-mathematical arguments involved in tradeoff resolution. Examples of tradeoffs in modern system design such as design for performance, cost, robustness, noise and emissions reduction, manufacturability, flexibility and evolvability will be discussed. Panel: I. Kim - - Queen’s University, Kingston, Canada, K. Lewis - - University at Buffalo SUNY, A. Messac - - Rensselaer Polytechnic Institute, F. Mistree - - Georgia Institute of Technology Moderator/s: O. De Weck

Session 54- MAO-54 Shape and Topology Optimization: Aerodynamics/Airfoils Ballroom D Chaired by: K. MAUTE, Aerospace Engineering, Boulder, CO, and P. ZINK, Lockheed Martin Aeronautics Company, Fort Worth, TX

1400 AIAA-2004-4629 Transonic Airfoil Shape Optimization in Preliminary Design Environment W. Li, S. Krist and R. Campbell, NASA Langley Research Center, Hampton, VA

1430 AIAA-2004-4630 Aerodynamic Shape Optimization Based on Free- Form Deformation J. Samareh, NASA Langley, Hampton, VA

1500 AIAA-2004-4631 Sequential Optimization Algorithms for Aerodynamic Shape Optimization M. Secanell and A. Suleman, University of Victoria, Victoria, Canada

1530 AIAA-2004-4632 Exergy Based Design Methodology for Airfoil Shape Optimization H. Li and R. Figliola, Clemson University, Clemson, SC

1600 AIAA-2004-4633 Augmenting Genetic Algorithm with Neural Network and Implementation to the Airfoil Design A. Hacýoðlu, Turkish Air Force Academy, Ýstanbul, Turkey

1630 AIAA-2004-4634 The Enlarged Variational Method as Strategy for the Aerodynamic Optimal Design A. Nastase, RWTH-Aachen, Aachen, Germany

1700 AIAA-2004-4635 Approximation of Wild Optimal Shapes D. Chenais, University of Nice, Nice, France; E. Zuazua, Univesidad autonoma de Madrid, Madrid, Spain

1730 AIAA-2004-4427 3D- Duct Design Using Variable Fidelity Method D. Ghate, A. Isaacs, K. Sudhakar, P. Mujumdar and A. Marathe, Indian Institute of Technology Bombay, Mumbai, India

Session 55- MAO-55 Structural Design Methodologies Ten Broeck Chaired by: S. SELYUGIN, Airbus - Russia, Moscow, Russia, and Y. SHYY, Altair Engineering, Irvine, CA

1400 AIAA-2004-4636 Topology Layout of Structural Designs and Buckling U. Schramm, M. Zhou, P. Tang and C. Harte, Altair Engineering, Irvine, CA

1430 AIAA-2004-4637 Tailoring Wing Structures for Reduced Drag Penalty in Off- Design Flight Conditions M. Papila and R. Haftka, University of Florida, Gainesville, FL; W. Mason, Virginia Polytechnic Institute and State University, Blacksburg, VA; R. Alves, Instituto Tecnologico de Aeronautica, São José dos Campos , Brazil

1500 AIAA-2004-4638 Reliability- Based Topology Optimization of Laser Scanned Model C. Kim, S. Wang, E. Kang and K. Lee, Gwangju Institute of Science and Technology, Gwangju, South Korea

1530 AIAA-2004-4640 On Optimization Approaches and Algorithms for Complicated Structures S. Selyugin, Airbus, Moscow, Russia

1600 AIAA-2004-4641 Optimization Assisted Structural Design of a New Military Transport Aircraft G. Schuhmacher, M. Stettner, H. Hornlein, O. O'Leary, R. Zotemantel and M. Wagner, EADS, Munich, Germany

1630 AIAA-2004-4642 Optimization Approach to Design of Aeroelastic Dynamically- Scaled Models of Aircraft V. Chedrik, F. Ishmuratov, M. Zichenkov and Y. Azarov, TsAGI, Zhukovsky, Russia

1700 AIAA-2004-4535 Integrated Configuration and Discrete Sizing Optimization of Trusses Using Discrete Lagrangian Method D. Juang, National Central University, Jung-li, Taiwan (roc)

Session 56- MAO-56 Terrestrial System Design Applications Webster's Meeting Room Chaired by: A. GIUNTA, Sandia National Laboratories, Albuquerque, NM, and T. LEE, Hanyang University, Seoul, South Korea

1400 AIAA-2004-4644 Robust Bulk Power System Design Using Particle Swarm Optimization D. Robinson, Sandia National Laboratories, Albuquerque, NM

1430 AIAA-2004-4645 Power Plant Systems Operational Scheduling Using a Dual- Time Scale Y. Zhao, V. Volovoi, M. Waters and D. Mavris, Georgia Institute of Technology, Atlanta, GA

1500 AIAA-2004-4646 Flexible Design of Commercial Systems Under Market Uncertainty: Framework and Application K. Kalligeros and O. de Weck, Massachusetts Institute of Technology, Cambridge, MA

1530 AIAA-2004-4647 Effects of Dynamic Penalty Parameters on the Convergence of MOGA in Optimization of a Large Gas Pipeline Network K. Botros and D. Sennhauser, NOVA Research & Technology Corporation, Calgary, Alberta, Canada; K. Jungowski, G. Poissant, H. Golshan and J. Stoffregen, TransCanada Pipelines Ltd., Calgary, Alberta, Canada

1600 AIAA-2004-4648 An Optimum Design of Two- piece Aluminum Beverage Bottles for Hot Vending J. Han, R. Itoh and S. Nishiyama, Mitsubishi Materials Corporation, Sunto, Japan; K. Yamazaki, Kanazawa University, Kanazawa, Japan

Session 57- MAO-57 Works in Progress Beverwyck Chaired by: D. CHOI, Hanyang University, Seoul, South Korea, and S. YOUN, Korea Advanced Institute of Science and Technology, Daejon, South Korea

1400 AIAA-2004-4650 Sonic Boom Modelling Under Atmospheric Uncertainty S. Rallabhandi and D. Mavris, Georgia Institute of Technology, Atlanta, GA

1420 AIAA-2004-4651 Multidisciplinary Optimization of Induced Stresses for Aerodynamic Stability of Wings P. Basu, M. Tahir and J. Veillette, Vanderbilt University, Nashville, TN

1440 AIAA-2004-4652 Strategic Design - A Conceptual Exploration M. Chamberlain, C. Williams, J. Allen and F. Mistree, Georgia Institute of Technology, Atlanta, GA

1500 AIAA-2004-4654 Use of Global Approximations in the Collaborative Optimization Framework V. Toropov, Altair Engineering Ltd, Coventry, Great Britain; P. Zadeh, Bradford University, Bradford, Great Britain

1520 AIAA-2004-4655 Preliminary Design of Large Wind Turbine Blades Using Layout Optimization Techniques S. Joncas, M. de Ruiter and F. van Keulen, Delft University of Technology, Delft, The Netherlands

1540 AIAA-2004-4656 Parallel Computin of Drug Molecular Conformation Optimization X. Wang and C. Li, Dalian University of Technology, Dalian, China (prc)