Results 11 to 20 of about 338,629 (196)

Robust topology optimization of three-dimensional photonic-crystal band-gap structures [PDF]

open access: yes, 2014
We perform full 3D topology optimization (in which "every voxel" of the unit cell is a degree of freedom) of photonic-crystal structures in order to find optimal omnidirectional band gaps for various symmetry groups, including fcc (including diamond ...
Freund, Robert M.   +4 more
core   +2 more sources

An algorithm for topology optimization of gear reducer housing elements [PDF]

open access: yesMATEC Web of Conferences, 2019
In recent years, topology optimization methods are becoming more widely used in many engineering fields, and they are already being successfully integrated at the design stage of the different types of products.
Slavov Stoyan D.   +1 more
doaj   +1 more source

A Realization Method for Transforming a Topology Optimization Design into Additive Manufacturing Structures

open access: yesEngineering, 2018
Topology optimization is a powerful design approach that is used to determine the optimal topology in order to obtain the desired functional performance.
Shutian Liu   +4 more
doaj   +1 more source

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

Topological Optimization of Brake Pedal for Metal Additive Manufacturing: A Case Study [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2021
Additive Manufacturing (AM) has become popular for rapid prototyping and it is presently widely used in different branches of industry because of its advantages such as freedom of design, mass customization, waste minimization and the ability to ...
Batuhan Izgi   +2 more
doaj   +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

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

Blade Structure Design Based on Topology Optimization and Shape Optimization

open access: yesHangkong gongcheng jinzhan, 2020
The blade cross-section design of the helicopter rotor is the basis for studying the rotor dynamics design. A two-stage optimization design method combining joint topology optimization and shape optimization is proposed, which can be used for the design ...
ZHOU Cheng, LIN Jie, LIU Yong
doaj   +1 more source

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

3-D topology optimization of single-pole-type head by using design sensitivity analysis [PDF]

open access: yes, 2006
It is necessary to develop a write head having a large recording field and small stray field in adjacent tracks and adjacent bits in perpendicular magnetic recording systems.
Akiyama, Koji   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy