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Some Applications of Detailed Wind Profile Data to Launch Vehicle Response ProblemsThe response of a launch vehicle to a number of detailed wind profiles has been determined. The wind profiles were measured by two techniques which are briefly described. One of these techniques uses an angle-of-attack sensor in conjunction with guidance data to measure the wind profile traversed by some particular launch vehicle. The other wind-measuring technique is a photographic triangulation method, whereby two cameras take simultaneous pictures of a vertical trail of smoke left by a launch vehicle or sounding rocket. The response of a vehicle flying these detailed profiles is compared with the response of the same vehicle flying through balloon-measured profiles. The response to the detailed wind profiles, relative t o the balloon-measured profiles, is characterized by the large excitation of the rigid pitch and elastic bending modes. This is found to cause higher loads on the launch vehicle structure. Established design criteria which utilize balloon measured wind profiles have arbitrarily accounted-for this increased load by adding a load due to some type of discrete gust.
Document ID
19620002835
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Morgan, H. G. (NASA Langley Research Center Hampton, VA, United States)
Collins, D. F., Jr. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 1, 2013
Publication Date
April 3, 1962
Subject Category
Fluid Mechanics
Meeting Information
Meeting: Launch Vehicles: Structures and Materials Conference
Location: Phoenix, AZ
Country: United States
Start Date: April 3, 1962
End Date: April 5, 1962
Accession Number
62N12835
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
LAUNCH VEHICLE
WIND PROFILE

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