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NASA Technical Repor - Optimization of Blended Wing Body Composite Pan - M555z

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Fiction/Non-Fiction
Non-Fiction
Genre/Subject
POLITICAL SCIENCE / General
Brand
NA
Weight
0.15
Style
NA
Title
Optimization of Blended Wing Body Composite Panels Using Both NAS
Release Title
Optimization of Blended Wing Body Composite Panels Using Both NAS
Record Grading
New
Sleeve Grading
New
Platform
NA
Size
NA
Film/TV Title
Optimization of Blended Wing Body Composite Panels Using Both NA
Colour
NA
Material
NA
Department
NA
Number of Pages
76
Binding Type
Perfect
Item Length
246.13
Main Stone
NA
Metal Purity
NA
Metal
NA
Connectivity
NA
Model
NA
ISBN
9781289147358
Publication Year
2013
Type
Textbook
Format
Paperback
Language
English
Publication Name
Optimization of Blended Wing Body Composite Panels Using both Nastran and Genetic Algorithm
Item Height
246mm
Author
Andrew E Lovejoy
Publisher
Bibliogov
Item Width
189mm
Subject
Government
Item Weight
154g

關於產品

Product Information

The blended wing body (BWB) is a concept that has been investigated for improving the performance of transport aircraft. A trade study was conducted by evaluating four regions from a BWB design characterized by three fuselage bays and a 400,000 lb. gross take-off weight (GTW). This report describes the structural optimization of these regions via computational analysis and compares them to the baseline designs of the same construction. The identified regions were simplified for use in the optimization. The regions were represented by flat panels having appropriate classical boundary conditions and uniform force resultants along the panel edges. Panel-edge tractions and internal pressure values applied during the study were those determined by nonlinear NASTRAN analyses. Only one load case was considered in the optimization analysis for each panel region. Optimization was accomplished using both NASTRAN solution 200 and Genetic Algorithm (GA), with constraints imposed on stress, buckling, and minimum thicknesses. The NASTRAN optimization analyses often resulted in infeasible solutions due to violation of the constraints, whereas the GA enforced satisfaction of the constraints and, therefore, always ensured a feasible solution. However, both optimization methods encountered difficulties when the number of design variables was increased. In general, the optimized panels weighed less than the comparable baseline panels.

Product Identifiers

Publisher
Bibliogov
ISBN-13
9781289147358
eBay Product ID (ePID)
212881791

Product Key Features

Author
Andrew E Lovejoy
Publication Name
Optimization of Blended Wing Body Composite Panels Using both Nastran and Genetic Algorithm
Format
Paperback
Language
English
Subject
Government
Publication Year
2013
Type
Textbook

Dimensions

Item Height
246mm
Item Width
189mm
Item Weight
154g

Additional Product Features

Title_Author
Andrew E Lovejoy
Country/Region of Manufacture
United States

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商業賣家資料

增值稅識別編號:
  • GB 343612519
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