Multiobjective optimization in structural design with uncertain parameters and stochastic processes

AIAA Journal ◽  
1984 ◽  
Vol 22 (11) ◽  
pp. 1670-1678 ◽  
Author(s):  
S. S. Rao
Keyword(s):  
Multiobjective Optimization ◽  
Stochastic Processes ◽  
Structural Design ◽  
Uncertain Parameters

Multiobjective Optimization for Structural Design of Lunar Habitats

2018 ◽  
Author(s):  
Valentina Sumini ◽  
Sam Wald ◽  
Caitlin Mueller ◽  
Claudio Chesi ◽  
Olivier L. de Weck
Keyword(s):  
Multiobjective Optimization ◽  
Structural Design

scholarly journals Multiobjective Optimization for the Aero-Structural Design of Adaptive Compliant Wing Devices

2020 ◽  
Vol 10 (18) ◽  
pp. 6380
Author(s):  
Alessandro De Gaspari
Keyword(s):  
Multiobjective Optimization ◽  
Structural Design ◽  
Design Method ◽  
Three Dimensional ◽  
Compliant Structure ◽  
Aircraft Performance ◽  
Definition Of ◽  
Shape Changes ◽  
Multiple Load ◽  
Load Conditions

The design of morphing structures must combine conflicting structural requirements and multiple load conditions that are related to the aerodynamic shapes aimed at optimizing aircraft performance. This article proposes a multilevel approach for the design of adaptive compliant wing devices. A set of aerodynamic shapes, and associated their loads, is defined by a shape optimization, coupled with a three-dimensional parametric technique, that can identify only feasible shape changes due to the morphing. A topology and sizing multiobjective optimization drives the Pareto-optimal structural design of the compliant structure, which is able to deform itself to match, once actuated, all of the previously defined aerodynamic shapes. Next two design levels produce a more detailed solution which is extended until the definition of the complete device. A 90 pax, twin prop green regional aircraft is used as an innovative aircraft demonstration platform for the design of the morphing droop nose to be installed on the wing. The results show the structural capabilities of this device in terms of the external shape quality and the strain requirements. This work enables the validation of the design method and prove the functionality of compliant structures when accounting for the aeroelastic effects due to the interaction with the wing-box.

scholarly journals Trade-off analysis for structural design of high-precision space reflector using multiobjective optimization method

2015 ◽  
Vol 2 (4) ◽  
pp. 15-00058-15-00058
Author(s):  
Ryo KODAMA ◽  
Nozomu KOGISO ◽  
Masahiro TOYODA ◽  
Hiroaki TANAKA
Keyword(s):  
Multiobjective Optimization ◽  
High Precision ◽  
Structural Design ◽  
Optimization Method ◽  
Trade Off
Sign in / Sign up

Export Citation Format

Share Document