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  • 1
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    Structural evaluation of deployable aerodynamic spike booms (1975)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: An extendable boom consisting of a series of telescopic cylindrical tube segments and overlapping lock joints developed for use as an aerodynamic spike mounted atop a missile is described. Two candidate design concepts differing mainly in the particular overlapping lock joint designs are undergoing a combined analytical/experimental evaluation. Some of the results of this evaluation are presented.
    Keywords: SPACECRAFT INSTRUMENTATION
    Type: NASA. Kennedy Space Center 9th Aerospace Mech. Symp.; p 31-43
    Format: application/pdf
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  • 2
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    An application of interactive computer graphics technology to the design of dispersal mechanisms (1977)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Interactive computer graphics technology is combined with a general purpose mechanisms computer code to study the operational behavior of three guided bomb dispersal mechanism designs. These studies illustrate the use of computer graphics techniques to discover operational anomalies, to assess the effectiveness of design improvements, to reduce the time and cost of the modeling effort, and to provide the mechanism designer with a visual understanding of the physical operation of such systems.
    Keywords: COMPUTER OPERATIONS AND HARDWARE
    Type: NASA. Goddard Res. Center The 11th Aerospace Mech. Symp.; p 57-66
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  • 3
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    An application of interactive computer graphics technology to the design of dispersal mechanisms (1977)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Interactive computer graphics technology is combined with a general purpose mechanisms computer code to study the operational behavior of three guided bomb dispersal mechanism designs. These studies illustrate the use of computer graphics techniques to discover operational anomalies, to assess the effectiveness of design improvements, to reduce the time and cost of the modeling effort, and to provide the mechanism designer with a visual understanding of the physical operation of such systems.
    Keywords: MECHANICAL ENGINEERING
    Type: NASA. Goddard Space Flight Center The 11th Aerospace Mech. Symp.; p 57-66
    Format: application/pdf
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  • 4
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    TRIDENT 1 third stage motor separation system (1977)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The third stage engine separation system has shown through test and analysis that it can effectively and reliably perform its function. The weight of the hardware associated with this system is well within the targeted value.
    Keywords: MECHANICAL ENGINEERING
    Type: NASA. Goddard Space Flight Center The 11th Aerospace Mech. Symp.; p 97-105
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  • 5
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    Development of the Trident 1 aerodynamic saike mechanism (1979)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The Aerospike drag reduction mechanism was designed and developed for use on the Trident I submarine launched ballistic missile. This mechanism encounters a unique combination of environments necessitating unique design solutions to ensure satisfactory operation over its design life. The development of the Aerospike is reviewed emphasizing the unique and interesting problems encountered and their solutions.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA. Johnson Space Center The 13th Aerospace Mech. Symp.; p 39-48
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  • 6
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    Concepts for reference frames in geodesy and geodynamics - The reference directions (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The paper discusses a study that establishes a reference frame, moving with the earth (in some average sense), in which the geometric and dynamical behavior of the earth can be monitored, and whose motion with respect to inertial space can also be determined. Emphasis is placed on the fact that the reference directions at an observation point on the earth surface, are defined by fundamental vectors for both space and time. The interrelationships between this space- and time-variant angular parameter are illustrated in a commutative diagram and tower of triads. Although the model tower is also space- and time-variant, its variations are described by adopted parameters using our current knowledge of the earth.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Bulletin Geodesique; 53; 3, 19; 1979
    Format: text
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  • 7
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    Investigations on the hierarchy of reference frames in geodesy and geodynamics (1979)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Problems related to reference directions were investigated. Space and time variant angular parameters are illustrated in hierarchic structures or towers. Using least squares techniques, model towers of triads are presented which allow the formation of linear observation equations. Translational and rotational degrees of freedom (origin and orientation) are discussed along with and the notion of length and scale degrees of freedom. According to the notion of scale parallelism, scale factors with respect to a unit length are given. Three-dimensional geodesy was constructed from the set of three base vectors (gravity, earth-rotation and the ecliptic normal vector). Space and time variations are given with respect to a polar and singular value decomposition or in terms of changes in translation, rotation, deformation (shear, dilatation or angular and scale distortions).
    Keywords: GEOPHYSICS
    Type: NASA-CR-162499 , REPT-289
    Format: application/pdf
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