Comparative Analysis of Global Techniques for Performance and Design Optimization of Launchers

2012 ◽  
Vol 49 (2) ◽  
pp. 274-285 ◽  
Author(s):  
Francesco Castellini ◽  
Michèle R. Lavagna
Keyword(s):  
Comparative Analysis ◽  
Design Optimization

scholarly journals Design Optimization and Comparative Analysis of Silicon-Nanowire-Based Couplers

2012 ◽  
Vol 4 (5) ◽  
pp. 2017-2026 ◽  
Author(s):  
Hongqiang Li ◽  
Xiaye Dong ◽  
Enbang Li ◽  
Zhihui Liu ◽  
Yaoting Bai
Keyword(s):  
Comparative Analysis ◽  
Design Optimization ◽  
Silicon Nanowire

Structural design and optimization of a series of 13.2 MW downwind rotors

2021 ◽  
pp. 0309524X2098416
Author(s):  
Shulong Yao ◽  
Mayank Chetan ◽  
D Todd Griffith
Keyword(s):  
Comparative Analysis ◽  
Wind Turbine ◽  
Design Optimization ◽  
Structural Design ◽  
Structural Performance ◽  
Mass Reduction ◽  
Design And Optimization ◽  
Significant Growth ◽  
Design Requirements ◽  
Rotor Mass

The quest for reduced LCOE has driven significant growth in wind turbine size. A key question to enable larger rotor designs is how to configure and optimize structural designs to constrain blade mass and cost while satisfying a growing set of challenging structural design requirements. In this paper, we investigate the performance of a series of three two-bladed downwind rotors with different blade lengths (104.3-m, 122.9-m, and 143.4-m) all rated at 13.2 MW. The primary goals are to achieve 25% rotor mass and 25% LCOE reduction. A comparative analysis of the structural performance and economics of this family rotors is presented. To further explore optimization opportunities for large rotors, we present new results in a root and spar cap design optimization. In summary, we present structural design solutions that achieve 25% rotor mass reduction in a SUMR13i design (104.3-m) and 25% LCOE reduction in a SUMR13C design (143.4-m).

scholarly journals Comparative Analysis of the Selection of Lay-Up Stacking of Polymer Composite Load-Bearing Elements for the Tail Section of Fuselage Structure of the Light Aircraft

2021 ◽  
Vol 346 ◽  
pp. 03111
Author(s):  
Tun Lin Htet ◽  
P.V. Prosuntsov
Keyword(s):  
Composite Material ◽  
Comparative Analysis ◽  
Composite Materials ◽  
Design Optimization ◽  
Polymer Composite ◽  
Optimization Method ◽  
Load Bearing ◽  
Rear Part ◽  
Continuous Range ◽  
Selection Of

The problem of the selecting the optimal lay-up stacking of polymer composite materials for the load-bearing elements of the rear part of fuselage structure is considered. The comparison of two approaches to the design of the load-bearing elements is carried out. The first of them is the use of multilayered composite material for the load-bearing elements, the stacking angles of which is selected from a given discrete set, and the second is the use of composite material with a continuous range of variables in fabric lay-up angles. As a result design optimization, it is shown that using an optimization method with a continuous range of lay-angles allows reducing the weight of the load-bearing elements by 12.79%

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