Results 41 to 50 of about 4,687,940 (367)

Multi-material topology optimization based on symmetric level set function using the material definition with perfect symmetric property

open access: yesNihon Kikai Gakkai ronbunshu, 2021
This paper provides a vector-valued level set-based topology optimization method for multiple materials. The proposed method is characterized by a perfectly symmetric representation of multi-material by a vector valued level set function, which lowers ...
Masaki NODA   +2 more
doaj   +1 more source

Genetic algorithms with elitism-based immigrants for dynamic load balanced clustering problem in mobile ad hoc networks [PDF]

open access: yes, 2011
This article is posted here with permission of IEEE - Copyright @ 2011 IEEEIn recent years, the static shortest path (SP) problem has been well addressed using intelligent optimization techniques, e.g., artificial neural networks, genetic algorithms (GAs)
Cheng, H, Yang, S
core   +1 more source

Topology Optimization Considering Porosity Defects in Metal Additive Manufacturing

open access: yesApplied Sciences, 2021
In this paper, considering the porosity defects of Additive Manufacturing (AM), a level set topology optimization method for AM with porosity constraints is proposed.
Shuangyuan Cao   +4 more
doaj   +1 more source

Damage localization using experimental modal parameters and topology optimization [PDF]

open access: yes, 2010
This work focuses on the developement of a damage detection and localization tool using the Topology Optimization feature of MSC.Nastran. This approach is based on the correlation of a local stiness loss and the change in modal parameters due to damages ...
Gourinat, Yves   +3 more
core   +3 more sources

Constraint interface preconditioning for topology optimization problems [PDF]

open access: yes, 2015
The discretization of constrained nonlinear optimization problems arising in the field of topology optimization yields algebraic systems which are challenging to solve in practice, due to pathological ill-conditioning, strong nonlinearity and size.
Kocvara, Michal   +2 more
core   +2 more sources

Network Topology Optimization Based on Time-Triggered DIMA [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
Distributed Integrated Modular Avionics System (DIMA) has attracted extensive attention in recent years, and the time-triggered Ethernet (TTE) supports the time triggering mechanism of DIMA system, so it has become the main protocol adopted by this ...

doaj   +1 more source

Topology optimization using artificial intelligence

open access: yesIncertitudes et Fiabilité des Systèmes Multiphysiques
An analysis of topology optimization employing deep learning, namely Generative Adversarial Networks (GANs), and topology optimization utilizing the Solid Isotropic Material with Penalization (SIMP) method is presented in this research.
Ahmed Ait Ouchaoui   +2 more
doaj   +1 more source

Concurrent optimization method of shape and topology for natural vibration problem of shell structures

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In this paper, a concurrent optimization method of shape and topology for natural vibration design of shell structures is presented. The fundamental vibration eigenvalue is maximized under volume constraints for shape and topology optimization.
Masatoshi SHIMODA, Ryo TSUTSUMI
doaj   +1 more source

Self-supporting structure design in additive manufacturing through explicit topology optimization

open access: yes, 2017
One of the challenging issues in additive manufacturing (AM) oriented topology optimization is how to design structures that are self-supportive in a manufacture process without introducing additional supporting materials. In the present contribution, it
Du, Zongliang   +5 more
core   +1 more source

On the Virtual Element Method for Topology Optimization on polygonal meshes: a numerical study [PDF]

open access: yes, 2016
It is well known that the solution of topology optimization problems may be affected both by the geometric properties of the computational mesh, which can steer the minimization process towards local (and non-physical) minima, and by the accuracy of the ...
Antonietti, Paola F.   +3 more
core   +2 more sources

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