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    Space program supporting technologies: structures, materials, and signal processing

    Schutzenhofer, L.A. / Blalock, S.J. / Johnston, L. et al. | Tema Archive | 1995
    task provides a benefit that addresses a problem area or meets a need in a space program. These benefits and past application of existing ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Modal vibration test facilities and methods for space station modules

    Tinker, M.L. | Tema Archive | 1995
    Development of a large modal survey test fixture for measuring constrained-boundary modes and frequencies of space station modules and ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Space Shuttle Orbiter landing loads optimization

    Purtle, L.V. / Fann, C.P. / Eich, P.G. | Tema Archive | 1995
    The paper discusses the method used in the Space Shuttle program to optimize landing gear loads and requirements to support increased ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    High thermal conductivity graphite in space applications

    Peck, S.O. | Tema Archive | 1995
    Applications of high thermal conductivity graphite fibers to space structures are discussed in the context of a composite scan mirror and ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Dynamic loads analysis of photovoltaic arrays for the space station

    Kim, H.M. / Van Horn, D.A. / West, T.S. | Tema Archive | 1995
    This paper summarizes a study conducted to evaluate the fidelity of structural dynamic models for the Space Station photovoltaic arrays and ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Configuration-shape-size optimization of space structures using the webbing approach

    Vandenbelt, D.N. / Felippa, C.A. | Tema Archive | 1995
    This project investigates the configuration-shape-size optimization (CSSO) of orbiting and planetary space structures. The CSSO problem has ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Space shuttle reusable solid rocket motor actuator bracket bolted joint certification analysis

    Nielsen, D.B. / Stratton, T.C. | Tema Archive | 1995
    Webster and Nielsen. As the RSRM design is very performance oriented, structural design required the use of lightweight materials whenever ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Dynamic control of docking of adaptive space structure based on artificial potential method

    Matsuzaki, Y. / Miura, T. / Ichiyanagi, A. et al. | Tema Archive | 1995
    For the soft docking of a space vehicle with a target, it is important for the vehicle to accurately adjust the approaching velocity and ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Effects of a non-linear system (free play) on space shuttle body flap modal responses

    Park, C.C. / Misel, J.E. | Tema Archive | 1995
    A non-linear transient response analysis was performed to understand the modal responses of the body flap of the Space Shuttle Orbiter. The ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Aeroelastic stability analysis of an airfoil with structural nonlinearities using a state space unsteady aerodynamics model

    Murty, H.S. | Tema Archive | 1995
    airfoil. This analysis was carried out using a state space formulation for the aerodynamic model. This formulation enables hard coupling between ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Orbiter tire traction and wear

    Michalopoulos, C.D. / Hamilton, D.A. | Tema Archive | 1995
    The traction and wear problem for a main landing gear tire of the Space Shuttle Orbiter is considered. Side force acting on the tire during ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Modeling of shock propagation and attenuation in viscoelastic materials

    Rusovici, R. / Lesieutre, G.A. / Inman, D.J. | Tema Archive | 2000
    address modeling of geometrically complex structures. These finite elements are then used to model shock propagation and absorption through ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Optimum design and testing of a post-buckled stiffened panel

    Lillico, M. / Butler, R. / Hunt, G.W. et al. | Tema Archive | 2000
    of an initial overall imperfection. The resulting panel has been analyzed using the non-linear FE package ABAQUS and four laboratory ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Propagation and control of crack-like damage in curved composite panels under combined loads

    Mahler, M. / Ley, R. / Shah, C. et al. | Tema Archive | 2000
    Certification and damage tolerance criteria are critical technologies for the advancement of composites structures on commercial aircraft ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Energy based design and analysis of staggered solvers for nonlinear transient aeroelastic problems

    Pipeno, S. / Farhat, C. | Tema Archive | 2000
    partitioned procedure. We present a mathematical framework for assessing some important numerical properties of the chosen partitioned procedure, and ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Design and experimental testing of an induced-shear piezoelectric actuator for rotor blade trailing edge flaps

    Centolanza, L.R. / Smith, E.C. | Tema Archive | 2000
    deflection and hinge moment. A finite element model of the actuator tube and trailing edge flap is used to compare the performance of the new tube ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Active and passive vibration control of a satellite during lift-off

    Lee-Glauser, G.J. / Ahmadi, G. / Layton, J.B. | Tema Archive | 1995
    rubber bearing and resilient friction systems are considered. Effectiveness of different vibration control systems for protection of the Space ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Derivation of 0-g structural control models from analysis and 1-g experimentation

    Glaese, R.M. / Miller, D.W. | Tema Archive | 1995
    The Middeck Active Control Experiment (MACE) is a space shuttle flight experiment, manifest for launch on STS-67 on March 2, 1995, intended ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Fracture parameter evaluation of composite panels under in-plane loading

    Cai, G. / Yuan, F.G. | Tema Archive | 2000
    path once the failure criteria are reached. Fracture parameters such as stress intensity factor and T-stress are computed from the J-integral ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Damage tolerance of fiber composite airfoils with piezoelectric adaptive control system

    Minnetyan, L. / Chamis, C.C. / Abdi, F. | Tema Archive | 2000
    . Progressive damage and fracture of a laminated composite airfoil subjected to external pressure loading and adaptive control stresses is evaluated via ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Static output feedback control of nonlinear aeroelastic response of a slender wing

    Patil, M.J. / Hodges, D.H. | Tema Archive | 2000
    controllers are designed for flutter suppression and gust-load alleviation of a slender wing. The SOF controller architecture is one of the simplest ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Durability of a woven polymer matrix composite in aerospace applications

    Patel, S.R. / Case, S.W. | Tema Archive | 2000
    The objective of this effort was to evaluate and model the effects of moisture, temperature, and combined hygrothermal aging on the ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Long-term durability of polymer matrix composites under simulated supersonic flight profile testing

    Gates, T.S. / Whitley, K.S. | Tema Archive | 2000
    number of aging hours and aging conditions. Analysis of these comparisons has provided the data to assess the relative importance of each ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Inclusions in Ti-6Al-4V investment castings

    Cotton, J.D. / Clark, L.P. / Reinhart, T.R. et al. | Tema Archive | 2000
    This paper some technical issues with Ti6Al4V airframe investment castings during the engineering and manufacturing development phase of ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Vibration of adaptive wing-rotor system for tiltrotor aircraft application

    Song, Ohseop / Kwon, Hyuck-Dong / Librescu, L. | Tema Archive | 2000
    Problems of mathematical modeling and free vibration of the adaptive wing-mounted rotor that can tilt from the horizontal position to the ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Corrosion prediction in aging aircraft materials using neural networks

    Bailey, R.A. / Pidaparti, R.M. / Jayanti, S. et al. | Tema Archive | 2000
    exposed to two corrosive environments. Given the corrosion environment and time of exposure the first neural network predicts the ASTM G34 ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Reduced-order modeling for flutter prediction

    Pettit, C.L. / Beran, P.S. | Tema Archive | 2000
    proper orthogonal decomposition technique. The flow is assumed to be inviscid and is modeled with the Euler equations. These nonlinear equations ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Stiffness tailoring of tension loaded composite panels to contain crack-like damage

    Ley, R. / Lin, Weichuan / Mahler, M. et al. | Tema Archive | 2000
    change, an analytical methodology was developed based on separate examination of shear and normal strain failure indices at the damage tip ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Optimization of piezoelectric actuator grouping for aircraft cabin noise control

    Grewal, A. / Tse, D. | Tema Archive | 2000
    Piezoelectric elements are effective as actuators for the control of vibration and noise in the cabins of aircraft subject to external ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Closed-loop vibration control experiments on a rotor with blade mounted actuation

    Prechtl, E.F. / Hall, S.R. | Tema Archive | 2000
    A Mach-scaled CH-47 model rotor blade with an actively controlled servo-flap near the tip was designed, manufactured, and tested. The servo ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Dynamic Finite Element (DFE) formulation for coupled flap-lag vibrations of propeller blades

    Hashemi, S.M. / Golnaraghi, M.F. | Tema Archive | 2000
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Predicting the impact response of an energy-absorbing composite subfloor beam

    Knight, N.F. jun. / Kellas, S. / Pinson, L.D. | Tema Archive | 2000
    applications. The paper presents an overview of the background design information for energy-absorbing composite subfloor beams and defines a specific ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Damage tolerance of cracked cylindrical shells under internal pressure

    Hoogkamer, D. / Waas, A.M. / Arbocz, J. | Tema Archive | 2000
    centralized cracks at angles to the shell generators ranging from 0 degree to 90 degree at an interval of 15 degree and of various crack length, are ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Reston

    Probabilistic analysis of docking mechanism-induced loads for mir/shuttle mission

    Lin, H.Z. / Ghofranian, S. / Schmidt, M. et al. | Tema Archive | 1995
    This paper presents a methodology for probabilistic loads analysis and its application to the STS-71 orbiter/Mir space station docking. It ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Simulation of Shuttle/Mir docking

    Ghofranian, S. / Schmidt, M.S. / Schliesing, J. et al. | Tema Archive | 1995
    This paper describes the simulation of the docking system of the Space Shuttle orbiter and the Russian space station Mir. The system is a ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Determination of helicopter rotor damping from simulated data using frequency domain system identification

    Jones, C.T. / Celi, R. | Tema Archive | 1995
    This paper addresses the problem of determining helicopter rotor mode damping from a state-space model of rotor, fuselage, and inflow in ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Soft-ride to orbit: viscoelastic treatments for launch load attenuation

    Thampi, S.K. / Le, D.N. / Wilke, P.S. | Tema Archive | 1995
    The high level vibroacoustic environment, typical for launch vehicles, can result in excessive loads and fatigue problems for space ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Passive vibration suppression using thin tape with viscous lamina

    Minesugi, K. / Onoda, J. / Hanawa, Y. | Tema Archive | 1995
    weight increase and space. In this paper, a polymid tape with viscous lamina is noted on the application to the passive vibration suppression ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Multi-criterion preliminary design of a tetrahedral truss platform

    Wu, K.C. | Tema Archive | 1995
    trusses. Performance improvements are plotted in frequency-mass (criterion) space and compared to results for uniform trusses. Application of ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    A new substructures system identification method

    Craig, R.R. jun. | Tema Archive | 1995
    A new method is proposed for system identification of substructures, such as payloads to be flown aboard the Space Shuttle. In the ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Formulation of a rotor-system damage detection methodology

    Ganguli, R. / Chopra, I. / Haas, D. | Tema Archive | 1995
    discretization in space and time, and capable of modeling dissimilar blades, is used to simulate the undamagedand and the damaged rotor. Changes in rotor ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Two-dimensionally deployable hexapod truss

    Onoda, J. / Fu, Dan-Ying / Minesugi, K. | Tema Archive | 1995
    A two-dimensionally deployable truss structure is newly proposed for space application, whose most significant feature is its small number ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    On the isolation of science payloads from spacecraft vibrations

    Belvin, W.K. / Sparks, D.W. / Horta, L.G. et al. | Tema Archive | 1995
    The remote sensing of the Earth's features from space requires precision pointing of scientific instruments. To this end, the NASA Langley ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Genetic algorithmus in multidisciplinary rotor blade design

    Hajela, P. / Lee, J. | Tema Archive | 1995
    efficiency, and a natural approach to account for the coupling between temporarily decoupled sub-problems. The design space for this problem is ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Health monitoring of reusable composite cryogenic tanks

    Emery, L. / Zisk, E.J. | Tema Archive | 1995
    Martin Marietta Manned Space Systems is developing methodologies to automatically and efficiently determine the health of reusable ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Unsteady aerodynamics of a flapped airfoil in subsonic flow by indicial concepts

    Hariharan, N. / Leishman, J.G. | Tema Archive | 1995
    An approach, based on the indicial method, is described for computing the unsteady lift, pitching moment, hinge moment and the drag on a ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Prediction of acoustically induced random vibration loads for shuttle payloads

    Leung, K. / Foist, B.L. | Tema Archive | 1995
    This paper presents a method for predicting random vibration loads for National Space Transportation System (NSTS) Shuttle launched ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    The short wavelength deflections of the shuttle orbiter skin panels when subjected to in-plane compressive forces

    Benson, P.L. | Tema Archive | 1995
    The Space Shuttle Orbiter's forward fuselage outer shell is an aluminum skin and hat section stringer design. The skin panels support a ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    Development of a low cost all composite satellite bus primary structure

    Braun, B. / Davinic, N. / Simon, W. | Tema Archive | 1995
    composite spacecraft bus, the Naval Center For Space Technology (NCST) at the Naval Research Laboratory (NRL), has designed and built a light weight ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

    An enhanced analysis method for composite overwrapped pressure vessels

    Shu, J.C. / Chiu, S.T. / Chang, J.B. | Tema Archive | 1995
    The increasing use of composite overwrapped pressure vessels (COPVs) in space applications demands a comprehensive and reliable analysis ...
    Publisher: American Institute of Aeronautics and Astronautics (AIAA) , Washington

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