scholarly journals Global Aerostructural Design Optimization of More Flexible Wings for Commercial Aircraft

2021 ◽  
pp. 1-18
Author(s):  
Tobias F. Wunderlich ◽  
Sascha Dähne ◽  
Lars Reimer ◽  
Andreas Schuster
Keyword(s):  
Design Optimization ◽  
Commercial Aircraft ◽  
Flexible Wings

scholarly journals Global Aero-Structural Design Optimization of More Flexible Wings for Commercial Aircraft

2020 ◽  
Author(s):  
Tobias F. Wunderlich ◽  
Sascha Daehne ◽  
Lars Reimer ◽  
Andreas Schuster ◽  
Olaf Brodersen
Keyword(s):  
Design Optimization ◽  
Structural Design ◽  
Commercial Aircraft ◽  
Flexible Wings ◽  
Structural Design Optimization

Design of an Aircraft Brake Component Using an Interactive Multidisciplinary Design Optimization Framework

2000 ◽  
Vol 122 (1) ◽  
pp. 70-76 ◽  
Author(s):  
Marc A. Stelmack ◽  
Stephen M. Batill ◽  
Bryan C. Beck
Keyword(s):  
Design Optimization ◽  
Multidisciplinary Design Optimization ◽  
Aircraft Design ◽  
Multidisciplinary Design ◽  
Analysis Software ◽  
Commercial Aircraft ◽  
Design Improvement ◽  
Optimization Framework ◽  
Design Engineers ◽  
Performance Requirements

A multidisciplinary design optimization (MDO) framework has been used to design an aircraft brake assembly. This was done using a user-interactive implementation of the framework in which design information was obtained from analysis software used in industry but not developed for an MDO application. The design included a number of performance requirements associated with a brake that has been produced for a commercial aircraft. Design improvement was achieved using a practical number of system realizations and the interaction between the optimization algorithm and the design engineers was maintained throughout the process. [S1050-0472(00)00201-4]

Conceptual design optimization of a wide-body commercial aircraft using a competitiveness model

2019 ◽  
Vol 234 (2) ◽  
pp. 208-220
Author(s):  
Xiaoyong Li ◽  
Xiao Chai ◽  
Hong Liu
Keyword(s):  
Design Optimization ◽  
Conceptual Design ◽  
Optimization Problem ◽  
Evaluation Model ◽  
Target Level ◽  
Commercial Aircraft ◽  
Analytic Hierarchy ◽  
Baseline Design ◽  
The One ◽  
Aircraft Conceptual Design

The conceptual design optimization of wide-body commercial aircraft is very challenging today. This paper deals with the conceptual design optimization problem of a next-cycle wide-body commercial aircraft, which has many similarities to the one being co-developed by China and Russia. The most difficult weaknesses are that the design requirements cannot be traded off during the conceptual design optimization process. To overcome this issue, a competitiveness model is built up for the wide-body commercial aircraft. The analytic hierarchy process is applied to formulate the competitiveness model, which is a multi-level evaluation model. The competiveness model includes three levels, i.e. target level, criteria level, and attributes level. The target level has an output, i.e. the competitiveness of the investigated aircraft, which serves as the single objective function in the conceptual design optimization problem. The criteria level includes four elements of economics, comfort, environmental impact, and adaptability. In addition, each criterion is further divided into more attributes, which are parameters obtained from the commercial aircraft conceptual design. By using the competitiveness model, the conceptual design optimization problem is converted into an unconstrained one that can be solved easily. Two optimizations with different judgment matrices for criteria level were performed. Compared with the baseline design candidate, the overall competitiveness of the optimal design for the optimization case 1 and case 2 increased by 9.28% and 11.51%, respectively, which benefits the designers and decision-makers.

424. Heat Stress During Fuel Tank Entry and Maintenance Activities on U.S. Air Force and Commercial Aircraft

1999 ◽  
Author(s):  
G. Kinnes ◽  
P. Jensen ◽  
K. Mead ◽  
D. Watkins ◽  
L. Smith ◽  
...  
Keyword(s):  
Heat Stress ◽  
Air Force ◽  
Fuel Tank ◽  
Commercial Aircraft ◽  
Maintenance Activities
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