Patent ID: 8511609
Filing Date: 2013-08-20
Classification: B64C,G10K,Y10T

Abstract:
1. A commercial passenger jet aircraft, comprising: a fuselage formed at least in part by a plurality of stringers and frame members that support a skin panel thereon, the fuselage including an enclosed cabin area; both of the stringers and the frame members being arranged within a window belt region of the fuselage to be non-parallel to a direction of flow of a turbulent boundary layer over an outer surface of the skin panel that is developed while the jet aircraft is in flight, and said stringers and frame members further being arranged at an angle between about 30-45 degrees inclusive, relative to said direction of flow of said turbulent boundary layer, sufficient to create a fundamental panel vibration mode shape for the skin panel that extends non-parallel to the direction of flow of the turbulent boundary layer; and the fundamental panel vibration mode shape operating to reduce noise by at least about 2.0 decibels in said cabin area of the jet aircraft when the jet aircraft is traveling at speeds in excess of about Mach 0.6.