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Probabilistic analysis and design of a raked wing tip for a commercial transport
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ransom, Jonathan B. Padula, Sharon L. Stroud, W. Jefferson Chen, Tzi-Kang |
| Copyright Year | 2008 |
| Description | An approach for conducting reliability-based design and optimization (RBDO) of a Boeing 767 raked wing tip (RWT) is presented. The goal is to evaluate the benefits of RBDO for design of an aircraft substructure. A finite-element (FE) model that includes eight critical static load cases is used to evaluate the response of the wing tip. Thirteen design variables that describe the thickness of the composite skins and stiffeners are selected to minimize the weight of the wing tip. A strain-based margin of safety is used to evaluate the performance of the structure. The randomness in the load scale factor and in the strain limits is considered. Of the 13 variables, the wing-tip design was controlled primarily by the thickness of the thickest plies in the upper skins. The report includes an analysis of the optimization results and recommendations for future reliability-based studies. |
| File Size | 631853 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080040187 |
| Archival Resource Key | ark:/13960/t9n34tq3h |
| Language | English |
| Publisher Date | 2008-09-10 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Finite Element Method Wings Airfoil Profiles Structural Failure Safety Factors Structural Reliability Wing Tips Aircraft Design Design Analysis Mason Brian H. Boeing 767 Aircraft Design Optimization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
