Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1996-08-14
1998-06-23
Fridie, Jr., Willmon
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
181213, 181214, 181292, 1563074, 156148, 156294, 29458, F02K 100
Patent
active
057687781
ABSTRACT:
An acoustic liner jet engine inlet barrel is formed from a perforated permeable skin, a honeycomb core, and a solid facesheet, each of which is formed in a one-piece configuration such that at most only a narrow single fore-to-aft splice, or no spice at all, is present in the finished product. The acoustic modal content remains unaffected, thus preserving a high degree of liner effectiveness, increasing the total active acoustic area of the barrel while decreasing its weight, and increasing its durability.
REFERENCES:
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Anderson Robert Elon
Parente Charles A.
Anderson Terry J.
Butler Marc W.
Fridie Jr. Willmon
Hoch Jr. Karl J.
Northrop Grumman Corporation
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