NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Improved design of a high response slotted plate overboard bypass valve for supersonic inletsThe electrohydraulically actuated slotted-plate bypass valve used to control the position of the normal shock during wind-tunnel investigations of supersonic inlets also has proven to be a valuable device for determining inlet dynamics and creating airflow disturbances. Operation of previous valves at high frequencies (to 100 Hz) for extended testing has resulted in numerous failures. An improved bypass-valve design is presented which increases the cyclic tolerance of the device considerably over past designs. The use of dynamic limit criteria to obtain an optimum actuator-piston size results in a frequency response which is flat within + or - 3 decibels to 120 Hz for a peak-to-peak variation of 20 percent of full area.
Document ID
19730016370
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Webb, J. A., Jr. (NASA Lewis Research Center Cleveland, OH, United States)
Mehmed, O. (NASA Lewis Research Center Cleveland, OH, United States)
Hiller, K. W. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 7, 2013
Publication Date
June 1, 1973
Subject Category
Auxiliary Systems
Report/Patent Number
E-7399
NASA-TM-X-2812
Accession Number
73N25097
Funding Number(s)
PROJECT: RTOP 501-24
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available