Results 41 to 50 of about 225,573 (166)

A Riemannian View on Shape Optimization [PDF]

open access: yesFoundations of Computational Mathematics, 2014
Shape optimization based on the shape calculus is numerically mostly performed by means of steepest descent methods. This paper provides a novel framework to analyze shape-Newton optimization methods by exploiting a Riemannian perspective. A Riemannian shape Hessian is defined yielding often sought properties like symmetry and quadratic convergence for
openaire   +2 more sources

The stress-minimizing hole in a shear-loaded elastic plate at a given energy increment

open access: yesArchives of Mechanics, 2022
Minimization of the peak tangential stresses around a single hole in an infinite 2D elastic plate under remote pure shear and a given hole-induced strain energy level is considered as a free-shape optimization problem under a physical constraint.
S. Vigdergauz
doaj   +1 more source

Hydrodynamic Optimization and Motion Stability Enhancement of Underwater Glider Combining CFD and MOPSO

open access: yesJournal of Marine Science and Engineering
This study investigated the motion stability of underwater gliders and optimized their shape to enhance hydrodynamic performance. Given the critical role of stability in underwater operations, a multi-objective optimization framework was developed ...
Tian Zhang   +3 more
doaj   +1 more source

A Shape Optimization Method of a Specified Point Absorber Wave Energy Converter for the South China Sea

open access: yesEnergies, 2018
In this paper, a shape optimization method of a truncated conical point absorber wave energy converter is proposed. This method converts the wave energy absorption efficiency into the matching problem between the wave spectrum of the South China Sea and ...
Yadong Wen   +6 more
doaj   +1 more source

Shape optimization of an acoustic horn [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bängtsson, Erik   +2 more
openaire   +1 more source

Shape optimization of a flexible beam with a local shape feature based on ANCF

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
This paper proposes a shape optimization method of local shape features on a flexible beam modeled with the absolute nodal coordinate formulation (ANCF).
Gang HE   +4 more
doaj   +1 more source

Optimal Shapes for Tree Roots

open access: yesSIAM Journal on Mathematical Analysis, 2022
The paper studies a class of variational problems, modeling optimal shapes for tree roots. Given a measure $μ$ describing the distribution of root hair cells, we seek to maximize a harvest functional $\mathcal{H}$, computing the total amount of water and nutrients gathered by the roots, subject to a cost for transporting these nutrients from the roots ...
Alberto Bressan   +2 more
openaire   +3 more sources

On the Topological Derivative in Shape Optimization [PDF]

open access: yesSIAM Journal on Control and Optimization, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sokołowski, J., Żochowski, A.
openaire   +1 more source

Morphology-Embedded Synergistic Optimization of Thermal and Mechanical Performance in Free-Form Single-Layer Grid Structures

open access: yesTechnologies
Free-form grid structures offer both aesthetic appeal and structural efficiency in long-span roof design and application, yet the potential of morphological design to optimize thermal performance has been long overlooked.
Bowen Hou, Baoshi Jiang, Bangjian Wang
doaj   +1 more source

Parameter-Free Shape Optimization: Various Shape Updates for Engineering Applications

open access: yesAerospace, 2023
In the last decade, parameter-free approaches to shape optimization problems have matured to a state where they provide a versatile tool for complex engineering applications.
Lars Radtke   +6 more
doaj   +1 more source

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