IMPROVED THERMAL-ACOUSTIC SECTIONS FOR AN AIRCRAFT
摘要
Embodiments of thermal-acoustic sections for an aircraft for reducing noise along an acoustic path produced from an acoustic source are provided herein. The thermal-acoustic section comprises a first porous layer having a first characteristic acoustic impedance. A second porous layer is disposed adjacent to the first porous layer and has a second characteristic acoustic impedance that is greater than the first characteristic acoustic impedance. The thermal-acoustic section is configured to be positioned along the acoustic path such that at least a portion of the noise from the acoustic source is directed through the first porous layer to the second porous layer to promote absorption of the noise.
申请公布号
EP2788557(A4)
申请公布日期
2015.08.12
申请号
EP20120855026
申请日期
2012.12.06
申请人
GULFSTREAM AEROSPACE CORPORATION
发明人
WANG, TONGAN;MAXON, JOHN, WILLETT;FOOSE, ANDREW;HORNICK, DAVID, CHARLES;FILA, JOSEF