1–20 of 5,514 hits
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    Hybrid simulation of space vehicle guidance systems

    Heartz, R.A. / Jones, T.H. | Engineering Index Backfile | 1964
    Hybrid simulation of guidance systems of space vehicles (specifically of lunar landing guidance system) using analog and digital computers ...
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Keywords: Space vehicles

    Investigation of Independent Structure (Space) Crew Escape Concepts

    F. Mavriplis / G. Little / A. Roberge et al. | NTIS | 1966
    Earth orbital vehicles. A preliminary design analysis, including a reentry flight simulation and a review of structural concepts and materials ...
    Keywords: Life Support Systems , Aerospace systems , Reentry vehicles , Hybrid rocket engines , Attitude control systems

    Power Systems for Electric Vehicles

    NTIS | 1967
    alternatives to the gasoline engine, Impact of electric vehicles on urban problems, Impact of electric power systems on urban traffic flow, control ...
    Publisher: National Center for Air Pollution Control, Cincinnati, Ohio
    Keywords: Vehicles , Systems engineering

    Systems Analysis of Urban Transportation. Volume 2. Cases for Study

    NTIS | 1968
    Contents: Factor analysis for city selection; Notes on urban transportation and urban form; Characteristics of travel demand for network ...
    Keywords: Passenger vehicles , Control systems , Hybrid rockets , Area planning and development , Rapid transit systems , Mass transit systems , Personal transit systems

    Hybrid Navigation Systems

    G. R. Marner / B. P. Leonard / M. W. Mitchell et al. | NTIS | 1970
    Contents: Hybrid guidance and navigation systems; Characteristics of a satellite navigation system operated in conjunction with a user ...
    Publisher: Advisory Group for Aerospace Research and Development Paris (France)
    Keywords: Navigation, Guidance, & Control , Control systems , Integrated systems , Air traffic control systems , Hybrid navigation systems

    The Optimal Design of an Electrohydraulic Control System Using Hybrid Computation

    Fisher, Dennis K. | SAE Technical Papers | 1970
    acceptable dynamic control of brake line pressure. This paper describes the analysis, simulation, and performance optimization of the ...
    Keywords: Control systems , Hydraulic systems , Simulation and modeling

    Applicability of Braking Control Systems for Highway Vehicles

    Olsson, George R. / Balmer, Glenn G. / Fielding, Peter G. | SAE Technical Papers | 1970
    hybrid computer simulation of a motor vehicle, and evaluation of control system performance. Benefits of braking control systems are illustrated ...
    Keywords: Control systems

    Applicability of Braking Control Systems to Highway Vehicles

    G. R. Olsson / P. G. Fielding | NTIS | 1970
    The report focuses upon problems of highway vehicle dynamic response and control in emergency braking maneuvers and the applicability of ...
    Keywords: Vehicles , Automatic control systems , Passenger vehicles , Automatic braking control

    Control System Optimization for Saturn 5 Launch Vehicles Using Gradient Techniques Final Report

    C. L. Connor / W. Trautwein | NTIS | 1970
    Publisher: Lockheed Missiles and Space Co., Huntsville, Ala. Research and Engineering Center
    Keywords: Space Launch Vehicles & Support Equipment , Attitude control , Optimal control , Saturn 5 launch vehicles , Hybrid computers , Systems engineering

    A Survey of Propulsion Systems for Low Emission Urban Vehicles

    W. E. Fraize / R. K. Lay | NTIS | 1970
    The paper offers an overview of low and negligible emission urban vehicle technology. Propulsion systems suitable for low emission urban ...
    Keywords: Air Pollution & Control , Ground vehicles , Electric vehicles , Hybrid vehicular propulsion , Rankine cycle power systems

    The Inertial Guidance Law of the Eldo Launch Vehicle - a Guide to the Equations and Data Preparation

    M. J. Gage | NTIS | 1970
    Keywords: Space Launch Vehicles & Support Equipment , Hybrid navigation systems , Thrust vector control

    Air Cushion Vehicle Control Simulation. Proposed Amphibious Assault Landing Craft Program Plan

    P. Dogan | NTIS | 1971
    modelling, hybrid computer facility, and man-in-the-loop simulation. To a large extent the needs and recommendations presented here are applicable ...
    Keywords: Systems engineering , Man-machine systems , Man in the loop systems

    Flywheel Feasibility Study and Demonstration

    R. R. Gilbert / J. R. Harvey / G. E. Hever et al. | NTIS | 1971
    The report presents a study of the feasibility of application of Flywheel only and flywheel hybrid propulsion systems to four classes of ...
    Publisher: Lockheed Missiles and Space Co., Sunnyvale, Calif. Ground Vehicle Systems
    Keywords: Air Pollution & Control , Hybrid propulsion , Air pollution control equipment , Air pollution control

    Heat-Engine/Mechanical-Energy-Storage Hybrid Propulsion Systems for Vehicles

    G. L. Dugger / A. Brandt / J. F. George et al. | NTIS | 1972
    , vans, and buses. In all cases substantial emission-free ranges could be achieved with hybrid systems by using the engine only periodically (at ...
    Keywords: Air Pollution & Control , Hybrid propulsion , Atmosphere contamination control

    A Hybrid Computer Simulation of the Recreational Snowmobile

    Newman, James A. / Cheng, Shui-chih / Suri, Vipin K. | SAE Technical Papers | 1972
    represented by a displacement-driven, damped nonlinear spring-mass system with two degrees of freedom. The analog circuit and the logic level control ...
    Keywords: Control systems , Recreational vehicles and equipment , Simulation and modeling

    Performance of the Air-Cushion-Surface-Contacting Hybrid Vehicle for Overland Operation

    J. Y. Wong | NTIS | 1972
    Although existing vehicles fully supported by an air cushion can function overland, considerable improvements in controllability and ...
    Keywords: Control systems , Hybrid air cushion vehicles , Surface contacting air cushion vehicles

    Flywheel Drive Systems Study

    R. R. Gilbert / G. E. Heuer / E. H. Jacobsen | NTIS | 1972
    The systems study effort has been directed toward the verification and refinement of the conclusions reached in a previous study, which ...
    Publisher: Lockheed Missiles and Space Co., Sunnyvale, Calif. Ground Vehicle Systems
    Keywords: Air Pollution & Control , Motor vehicles , Hybrid vehicular propulsion

    Electric Automobiles. A Bibliography with Abstracts

    J. W. Ringe | NTIS | 1973
    . Included are studies of battery systems, emissions, costs and experimental evaluations of electric and hybrid vehicle propulsion. ...
    Keywords: Air Pollution & Control , Electric vehicles , Motor vehicles , Passenger vehicles , Hybrid vehicular propulsion

    High Altitude Supersonic Target (HAST), Phase II

    J. A. Engelland / W. M. Byrne | NTIS | 1974
    Final design of the High Altitude Supersonic Target (HAST) and supporting equipment was completed and flight test vehicles and supporting ...
    Keywords: Remotely piloted vehicles , Test vehicles , Hybrid rocket engines , Hybrid rocket propellants , Command and control systems , Flight control systems

    The effects of selected modern technological concepts on the performance and handling characteristics of LTA vehicles

    Mazza, C. J. | NTRS | 1975
    fractions and lighter, more efficient propulsion systems. Qualitatively, future airships are discussed in terms of stability, control and flying ...
    Publisher: NASA National Aeronautics and Space Administration
    Keywords: Aircraft Design, Testing And Performance