System and method for forming elongated perforations in an inner barrel section of an engine
AssigneeThe Boeing Company
InventorsArnold J. Lauder, Mark F. Gabriel
Life of this patent
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Abstract
Certain embodiments of the present disclosure provide an acoustic inlet barrel of an engine. The acoustic inlet barrel may include an inner barrel configured to provide a boundary for directing airflow through the engine. The inner barrel may include an inner face sheet separated from an outer face sheet by an acoustic core. The inner barrel may include a plurality of elongated, non-circular perforations formed through the inner face sheet.
Claims20
An acoustic inlet barrel of an engine, the acoustic inlet barrel comprising:
- an inner barrel configured to provide a boundary for directing airflow through the engine, the inner barrel comprising an inner face sheet separated from an outer face sheet by an acoustic core, wherein the inner face sheet comprises a plurality of elongated, non-circular perforations.
A method of forming a component of an engine, the method comprising:
- sandwiching an acoustic core between an inner section and an outer section of the component;
- and
- forming a plurality of elongated, non-circular perforations in at least a portion of the inner section.
A forming system, comprising:
- at least one robotic forming unit including at least one end effector positioned inside a barrel section configured as a composite sandwich structure having an inner face sheet, wherein the at least one robotic forming unit is operable to form a plurality of elongated, non-circular perforations into the inner face sheet using the at least one end effector to provide a predetermined percent-open-area of the inner face sheet.
Dependencies are inferred from the claim text.