Results 41 to 50 of about 8,515,340 (337)

Shape optimization of multi-degree-of-freedom wave energy converter using genetic algorithm

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveIn order to optimize the shape of the floating buoy of a multi-degree-of-freedom wave energy converter to improve its energy conversion efficiency, a method for shape optimization based on a genetic algorithm (GA) is proposed.
Ming TAN   +5 more
doaj   +1 more source

Thermo-fluid dynamic design optimization of a concentric tube heat exchanger

open access: yesJournal of Fluid Science and Technology, 2019
This study proposes a shape optimization approach for the cross-sectional shape of the inner pipe of a counterflow concentric tube heat exchanger. The cross-sectional shape of the inner pipe is expressed by an algebraic expression with a small number of ...
Tomohiro HIRANO   +3 more
doaj   +1 more source

A Linearization Technique for Optimal Design of the Damping Set with Internal Dissipation [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2016
‎Considering a damped wave system defined on a two-dimensional domain‎, ‎with a dissipative term localized in an unknown subset with an unknown damping parameter‎, ‎we address the shape design ill-posed problem which consists of optimizing the shape of
Alireza Fakharzadeh Jahromi   +2 more
doaj   +1 more source

Optimization of the Curved Metal Damper to Improve Structural Energy Dissipation Capacity

open access: yesBuildings, 2022
Structural curved metal dampers are implemented in various applications to mitigate the damages at a specific area efficiently. A stable and saturated hysteretic behavior for the in-plane direction is dependent on the shape of a curved-shaped damper ...
Young-Chan Kim   +5 more
doaj   +1 more source

Proximal bundle method for contact shape optimization problem [PDF]

open access: yes, 2017
From the mathematical point of view, the contact shape optimization is a problem of nonlinear optimization with a specific structure, which can be exploited in its solution. In this paper, we show how to overcome the difficulties related to the nonsmooth
Beremlijski, Petr, Plívová, Nikola
core   +2 more sources

Shape optimization analysis considering a rotational body in a flow field based on the adjoint variable and the finite element methods

open access: yesJournal of Fluid Science and Technology, 2019
In this study, we present a shape optimization analysis considering a rotational body in a flow field based on the adjoint variable and the finite element methods.
Takahiko KURAHASHI   +2 more
doaj   +1 more source

Combined SGC-Ball Interpolation Curves: Construction and IGEO-Based Shape Optimization

open access: yesMathematics, 2023
With the swift advancement of the geometric modeling industry and computer technology, traditional generalized Ball curves and surfaces are challenging to achieve the geometric modeling of various complex curves and surfaces.
Jiaoyue Zheng   +3 more
doaj   +1 more source

Efficient aerodynamic shape optimization using variable-fidelity surrogate models and multilevel computational grids

open access: yesChinese Journal of Aeronautics, 2020
A variable-fidelity method can remarkably improve the efficiency of a design optimization based on a high-fidelity and expensive numerical simulation, with assistance of lower-fidelity and cheaper simulation(s).
Zhonghua Han   +5 more
semanticscholar   +1 more source

Optimization of Textured Surface in 2D Parallel Bearings Governed by the Reynolds Equation Including Cavitation and Temperature

open access: yesTribology Online, 2013
One-dimensional textured parallel bearings have been successfully optimized for the maximum load capacity or the minimum friction coefficient using a unified computational approach. However, there is no efficient approach allowing for the optimization of
Agata Guzek   +2 more
doaj   +1 more source

Self-adaptation of mutation distribution in evolution strategies for dynamic optimization problems [PDF]

open access: yes, 2011
Copyright @ IOS Press. All Rights Reserved.Evolution strategies with q-Gaussian mutation, which allows the self-adaptation of the mutation distribution shape, is proposed for dynamic optimization problems in this paper.
Tinós, R, Yang, S
core   +2 more sources

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