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Accession Number N20130013479
Title PRSEUS Pressure Cube Test Data and Response.
Publication Date May 2013
Media Count 236p
Personal Author A. E. Lovejoy
Abstract NASA's Environmentally Responsible Aviation (ERA) Program is examining the hybrid wing body (HWB) aircraft, among others, in an effort to increase the fuel efficiency of commercial aircraft. The HWB design combines features of a flying wing with features of conventional transport aircraft, and has the advantage of simultaneously increasing both fuel efficiency and payload. Recent years have seen an increased focus on the structural performance of the HWB. The key structural challenge of a HWB airframe is the ability to create a cost and weight efficient, non-circular, pressurized shell. Conventional round fuselage sections react cabin pressure by hoop tension. However, the structural configuration of the HWB subjects the majority of the structural panels to bi-axial, in-plane loads in addition to the internal cabin pressure, which requires more thorough examination and analysis than conventional transport aircraft components having traditional and less complex load paths. To address this issue, while keeping structural weights low, extensive use of advanced composite materials is made. This report presents the test data and preliminary conclusions for a pressurized cube test article that utilizes Boeing's Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS), and which is part of the building block approach used for HWB development.
Keywords Blended-wing-body configurations
Commercial aircraft
Composite materials
Displacement
Internal pressure
Loads(Forces)
Panels
Pultrusion
Rods
Structural design
Structural weight
Weight reduction
Wind tunnel tests


 
Source Agency National Aeronautics and Space Administration
NTIS Subject Category 51C - Aircraft
71F - Composite Materials
Corporate Author National Aeronautics and Space Administration, Hampton, VA. Langley Research Center.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1323
Contract Number N/A

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