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  • Other Sources  (4)
  • 1980-1984  (4)
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  • 1
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    Unknown
    Application of tire dynamics to aircraft landing gear design analysis (1983)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The tire plays a key part in many analyses used for design of aircraft landing gear. Examples include structural design of wheels, landing gear shimmy, brake whirl, chatter and squeal, complex combination of chatter and shimmy on main landing gear (MLG) systems, anti-skid performance, gear walk, and rough terrain loads and performance. Tire parameters needed in the various analyses are discussed. Two tire models are discussed for shimmy analysis, the modified Moreland approach and the von Schlippe-Dietrich approach. It is shown that the Moreland model can be derived from the Von Schlippe-Dietrich model by certain approximations. The remaining analysis areas are discussed in general terms and the tire parameters needed for each are identified. Accurate tire data allows more accurate design analysis and the correct prediction of dynamic performance of aircraft landing gear.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA. Langley Research Center Tire Modeling; p 71-94
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    National Transonic Facility: A review of the operational plan (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The proposed National Transonic Facility (NTF) operational plan is reviewed. The NTF will provide an aerodynamic test capability significantly exceeding that of other transonic regime wind tunnels now available. A limited number of academic research program that might use the NTF are suggested. It is concluded that the NTF operational plan is useful for management, technical, instrumentation, and model building techniques available in the specialized field of aerodynamic analysis and simulation. It is also suggested that NASA hold an annual conference to discuss wind tunnel research results and to report on developments that will further improve the utilization and cost effectiveness of the NTF and other wind tunnels.
    Keywords: RESEARCH AND SUPPORT FACILITIES (AIR)
    Type: NASA-CR-163463 , NASA-CR-163463 , PB81-115289
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Unknown
    Use of MAGSAT anomaly data for crustal structure and mineral resources in the US midcontinent (1982)
    In:  CASI
    Details
    Publication Date: 2019-07-20
    Description: Activities concerning the interpretation of processed MAGSAT data and maps are briefly reported. Work involving the identification of long wavelength 'regional' effects that might be associated with varying crustal thickness or Curie temperature depths is processing.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E82-10395 , NASA-CR-169184 , NAS 1.26:169184 , QR-6
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Use of MAGSAT anomaly data for crustal structure and mineral resources in the US midcontinent (1981)
    In:  CASI
    Details
    Publication Date: 2019-07-20
    Description: Magnetic fields were measured from October 1979 until June 1980 using the satellite. The processed magnetic data yield long wavelength anomalies that arise from crustal and upper mantle sources. Analysis techniques are being developed to help interpret the structure and character of the lithosphere in central North America. The region includes the Midcontinent Gravity Anomaly peleorift zone and the New Madrid rift/seismic zone, both of which are of plaeotectonic and neotectonic interest. Preliminary analysis of the initial MAGSAT data combined with correlative geological and geophysical data shows the utility of the satellite data for regional crustal and basement study.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E81-10094 , NASA-CR-164092 , QR-1
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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