Research and Technology 2004This report selectively summarizes NASA Glenn Research Center's research and technology accomplishments for fiscal year 2004. It comprises 133 short articles submitted by the staff scientists and engineers. The report is organized into three major sections: Programs and Projects, Research and Technology, and Engineering and Technical Services. A table of contents and an author index have been developed to assist readers in finding articles of special interest. This report is not intended to be a comprehensive summary of all the research and technology work done over the past fiscal year. Most of the work is reported in Glenn-published technical reports, journal articles, and presentations prepared by Glenn staff and contractors. In addition, university grants have enabled faculty members and graduate students to engage in sponsored research that is reported at technical meetings or in journal articles. For each article in this report, a Glenn contact person has been identified, and where possible, a reference document is listed so that additional information can be easily obtained. The diversity of topics attests to the breadth of research and technology being pursued and to the skill mix of the staff that makes it possible. For more information, visit Glenn's Web site at http://www.nasa.gov/glenn/. This document is available online (http://www.grc.nasa.gov/WWW/RT/). For publicly available reports, visit the Glenn Technical Report Server (http://gltrs.grc.nasa.gov).
IDRelationTitle20050215680WorkGlenn's Telescience Support Center Provided Around-the-Clock Operations Support for Space Experiments on the International Space Station20050217292WorkPrototype Variable-Area Exhaust Nozzle Designed20050217241WorkStructural Benchmark Tests of Composite Combustion Chamber Support Completed20050217232WorkJournal Bearing Analysis Suite Released for Planetary Gear System Evaluation20050220636WorkOzone Exposure System Designed and Used to High-Altitude Airship Materials20050217303WorkFundamental Mistuning Model for Probabilistic Analysis Studied Experimentally20050217185WorkQuick Access Rocket Exhaust Rig Testing of Coated GRCop-84 Sheets Used to Aid Coating Selection for Reusable Launch Vehicles20050215653WorkCapillary Flow Experiments Began on the International Space Station20050217480WorkBinary Colloidal Alloy Test-3 (BCAT-3) Tabletop Space Station Experiment Continues20050217460WorkSmaggIce 2D Version 1.8: Software Toolkit Developed for Aerodynamic Simulation Over Iced Airfoils20050217105WorkGlenn Refractory Adhesive for Bonding and Exterior Repair (GRABER) Developed for Repairing Shuttle Damage20050215686WorkLow-Speed Active Flow Control Laboratory Developed20050220611WorkTheoretical and Experimental Unsteady Aerodynamics Compared for a Linear Oscillating Cascade With a Supersonic Leading-Edge Locus20050217412WorkAdaptive Technologies Developed and Demonstrated for Extending the Stable Operating Range of Compressors20050215691WorkIntelligent Life-Extending Controls for Aircraft Engines Studied20050217470WorkWind-US 1.0 Released by NPARC Alliance20050217247WorkStainless-Steel-Foam Structures Evaluated for Fan and Rotor Blades20050215693WorkInnovative Adaptive Control Method Demonstrated for Active Suppression of Instabilities in Engine Combustors20050217467WorkSubsonic Scarf Inlets Investigated20050217243WorkBenchmark Calibration Tests Completed for Stirling Convertor Heater Head Life Assessment20050217234WorkMicrosystem Cooler Concept Developed and Being Fabricated20050216446WorkMolecular Rayleigh Scattering Techniques Developed for Measuring Gas Flow Velocity, Density, Temperature, and Turbulence20050217255WorkLife Predicted in a Probabilistic Design Space for Brittle Materials With Transient Loads20050217027WorkSonoluminescence: A Galaxy of Nanostars Created in a Beaker20050217468WorkPiloted Flight Simulator Developed for Icing Effects Training20050217163WorkFlexible Metallic Overwrap Concept Developed for On-Orbit Repair of Space Shuttle Orbiter Leading Edges20050217257WorkFuel-Cell-Powered Electric Motor Drive Analyzed for a Large Airplane20050217395WorkPower Requirements Determined for High-Power-Density Electric Motors for Electric Aircraft Propulsion20050217397WorkTurbofan Noise Reduction Associated With Increased Bypass Nozzle Flow20050217475WorkNew Species of Fire Discovered: Fingering Flamelets Form a Dynamic Population20050216445WorkNondestructive Evaluation Tests Performed on Space Shuttle Leading- Edge Materials Subjected to Impact20050217246WorkIntegrity of Polymethylmethacrylate (PMMA) Chemically Welded Joints Examined20050215694WorkDiscrete Event Supervisory Control Applied to Propulsion Systems20050217296WorkDesign Sensitivity for a Subsonic Aircraft Predicted by Neural Network and Regression Models20050217028WorkProcess Developed for Fabricating Engineered Pore Structures for High- Fuel-Utilization Solid Oxide Fuel Cells20050217250WorkLiquid-Hydrogen-Cooled 450-hp Electric Motor Test Stand Being Developed20050217168WorkMechanically Strong, Lightweight Porous Materials Developed (X-Aerogels)20050220613WorkModel-Based, Multiscale Self-Tuning Controller Developed for Active Combustion Control20050215683WorkFlight Hardware Fabricated for Combustion Science in Space20050217253WorkBrayton-Cycle Power-Conversion Unit Tested With Ion Thruster20050217183WorkFull-Scale GRCop-84 Combustion Chamber Liner Preform Fabricated Successfully20050217207WorkGround-Laboratory to In-Space Effective Atomic-Oxygen Fluence Determined for DC 93-500 Silicone20050217245WorkTitanium Aluminide Scramjet Inlet Flap Subelement Benchmark Tested20050217192WorkVery Tough, Erosion-Resistant Turbine Airfoil Thermal Barrier Coatings Developed20050217398WorkSpur Gear Wear Investigated in Support of Space Shuttle Return-To-Flight Efforts20050217411WorkEmissions Measured in the Exhaust of a CFM-56 Engine on a DC-820050217165WorkMechanical and Electrical Properties of a Polyimide Film Significantly Enhanced by the Addition of Single-Wall Carbon Nanotubes20050217101WorkAs-Fabricated Reinforced Carbon/Carbon Characterized20050217175WorkPotential High-Temperature Shape-Memory-Alloy Actuator Material Identified20050217161WorkNonhumidified High-Temperature Membranes Developed for Proton Exchange Membrane Fuel Cells20050217205WorkStirling Convertor System Dynamic Model Developed20050217179WorkProcessing of Ni30Pt20Ti50 High-Temperature Shape-Memory Alloy Into Thin Rod Demonstrated20050217404WorkSoftware Developed for Analyzing High- Speed Rolling-Element Bearings20050217173WorkStructures Self-Assembled Through Directional Solidification20050217220WorkStirling Power Convertors Demonstrated in Extended Operation20050217256WorkHigh-Temperature (1000 F) Magnetic Thrust Bearing Test Rig Completed and Operational20050217394WorkAdvanced Ceramic Wafer Seals Demonstrated at 2000 deg. F20050217169WorkHigh-Temperature Piezoelectric Ceramic Developed20050217176WorkProton-Exchange-Membrane Fuel Cell Powerplants Developed and Tested for Exploration Missions20050217472WorkPressure Control for Low Earth Orbit Investigated20050217201WorkAdvanced Controller Developed for the Free-Piston Stirling Convertor20050217020WorkOptical Tweezers and Optical Trapping Improved for Future Automated Micromanipulation and Characterization20050217393WorkOxide Ceramic Films Grown on 60 Nitinol for NASA and Department of Defense Applications20050217223WorkConcept Developed for an Implanted Stimulated Muscle-Powered Piezoelectric Generator20050217208WorkReliability of the SRG110 Stirling Convertor Quantified20050217252WorkTribological Behavior of Nano-Onions in Krytox 143AB Evaluated20050217222WorkHigh-Temperature Proton-Conducting Ceramics Developed20050217474WorkObject-Oriented Version of Glenn-HT Code Released: Glenn-HT200020050217178WorkLithium-Ion Batteries Being Evaluated for Low-Earth-Orbit Applications20050217194WorkStrong, Tough Glass Composites Developed for Solid Oxide Fuel Cell Seals20050217204WorkClosed-Cycle Engine Program Used to Study Brayton Power Conversion20050217197WorkPermeability of Candidate Stirling Heater Head Materials Measured20050217198WorkSiC/SiC Ceramic Matrix Composites Developed for High-Temperature Space Transportation Applications20050217299WorkSystem Developed for Real-Time Blade-Flutter Monitoring in the Wind Tunnel20050220617WorkHybrid Power Management Program Evaluated Ultracapacitors for the Next Generation Launch Transportation Project20050215651WorkMilestones Achieved for the Fluids and Combustion Facility20050215692WorkEnhanced Bank of Kalman Filters Developed and Demonstrated for In-Flight Aircraft Engine Sensor Fault Diagnostics20050217200WorkTesting Done for Lorentz Force Accelerators and Electrodeless Propulsion Technology Development20050217405WorkPrimal and Dual Integrated Force Methods Used for Stochastic Analysis20050217301WorkFlutter Stability Verified for the Trailing Edge Blowing Fan20050217267WorkG2 Flywheel Module Operated at 41,000 rpm20050216394WorkControl Algorithms and Simulated Environment Developed and Tested for Multiagent Robotics for Autonomous Inspection of Propulsion Systems20050217188WorkIntegrated Power and Attitude Control System Demonstrated With Flywheels G2 and D120050217402WorkNESTEM Probabilistic Analysis Used to Study Mistuned Bladed Disks and Blisks With Aerodynamic and Structural Coupling20050217221WorkVacuum Ultraviolet Radiation Effects on DC93-500 Silicone Film Studied20050220616WorkTwo-Phase Flow Technology Developed and Demonstrated for the Vision for Exploration20050217298WorkDamage-Tolerant, Affordable Composite Engine Cases Designed and Fabricated20050217294WorkSwitched-Reluctance Cryogenic Motor Tested and Upgraded20050217189WorkThermodynamics of Volatile Species in the Silicon-Oxygen-Hydrogen System Studied20050220618WorkSystem Developed for Bulk Flow Imaging of a Two-Phase Fluid in a Cylindrical Couette20050217026WorkHigh-Temperature, Thin-Film Ceramic Thermocouples Developed20050217199WorkLithium-Ion Cell Charge-Control Unit Developed20050217239WorkReliability of Electronics for Cryogenic Space Applications Being Assessed20050217196WorkCooled Ceramic Matrix Composite Propulsion Structures Demonstrated20050217254WorkLiquid-Hydrogen-Cooled 450-hp Electric Motor Test Stand Being Developed20050217476WorkSoldering Tested in Reduced Gravity20050217113WorkFollowup to Columbia Investigation: Reinforced Carbon/Carbon From the Breach Location in the Wing Leading Edge Studied20050217469WorkParametric Inlet Tested in Glenn's 10- by 10-Foot Supersonic Wind Tunnel20050217477WorkFlow-Boiling Critical Heat Flux Experiments Performed in Reduced Gravity20050217193WorkLow-Thermal-Conductivity Pyrochlore Oxide Materials Developed for Advanced Thermal Barrier Coatings20050217095WorkForward Technology Solar Cell Experiment (FTSCE) for MISSE-5 Verified and Readied for Flight on STS-11420050217166WorkNovel Elastomeric Membranes Developed for Polymer Electrolytes in Lithium Batteries20050220619WorkAcoustic Liquid Manipulation Used to Enhance Electrochemical Processes20050217478WorkCondensing Heat Exchanger Concept Developed for Space Systems20050217167WorkHigh-Temperature Polymer Composites Tested for Hypersonic Rocket Combustor Backup Structure20050217019WorkAbility of Impedance-Based Health Monitoring To Detect Structural Damage of Propulsion System Components Assessed20050217195WorkProcess Developed for Generating Ceramic Interconnects With Low Sintering Temperatures for Solid Oxide Fuel Cells20050217235WorkConductive Composites Made Less Expensively20050216444WorkQuantum Sensing and Communications Being Developed for Nanotechnology20050220614WorkAdvanced Vibration Analysis Tool Developed for Robust Engine Rotor Designs20050217210WorkWork Began on Contracts for Radioisotope Power Conversion Technology Research and Development20050217399WorkNational Combustion Code Used To Study the Hydrogen Injector Design for Gas Turbines20050217403WorkHigh-Temperature Knitted Spring Tubes Improved for Structural Seal Applications20050217182WorkCandidate Materials Evaluated for a High-Temperature Stirling Convertor Heater Head20050217160WorkProperties of PMR Polyimides Improved by Preparation of Polyhedral Oligomeric Silsesquioxane (POSS) Nanocomposites20050217096WorkNanorod Material Developed for Use as an Optical Sensor Platform20050217295WorkAnalytical Micromechanics Modeling Technique Developed for Ceramic Matrix Composites Analysis20050217471WorkDirectional Attenuation of Jet Noise With Eccentric Coannular Nozzle Investigated20050217396WorkBenchmark Problems Used to Assess Computational Aeroacoustics Codes20050215648WorkFundamental Research Applied To Enable Hardware Performance in Microgravity20050217023WorkNew Deep Reactive Ion Etching Process Developed for the Microfabrication of Silicon Carbide20050217171WorkEffects of High-Temperature Exposures on the Fatigue Life of Disk Superalloys Examined20050217408WorkTransferable Calibration Standard Developed for Quantitative Raman Scattering Diagnostics in High-Pressure Flames20050215642WorkProbabilistic Analysis Techniques Applied to Complex Spacecraft Power System Modeling20050217473WorkSynthetic Vortex Generator Jets Used to Control Separation on Low-Pressure Turbine Airfoils