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National Transonic Facility model and model support vibration problemsVibrations of models and model support system were encountered during testing in the National Transonic Facility. Model support system yaw plane vibrations have resulted in model strain gage balance design load limits being reached. These high levels of vibrations resulted in limited aerodynamic testing for several wind tunnel models. The yaw vibration problem was the subject of an intensive experimental and analytical investigation which identified the primary source of the yaw excitation and resulted in attenuation of the yaw oscillations to acceptable levels. This paper presents the principal results of analyses and experimental investigation of the yaw plane vibration problems. Also, an overview of plans for development and installation of a permanent model system dynamic and aeroelastic response measurement and monitoring system for the National Transonic Facility is presented.
Document ID
19900050898
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Young, Clarence P., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Popernack, Thomas G., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Gloss, Blair B.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
June 1, 1990
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
AIAA PAPER 90-1416
Accession Number
90A37953
Distribution Limits
Public
Copyright
Other

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