scholarly journals The Method of Transferring Topology Optimization Results Directly to the CAD System Database

2022 ◽  
Vol 16 (1) ◽  
pp. 243-252
Author(s):  
Konrad Łyduch ◽  
Jacek Łukaszyk ◽  
Michał Nowak
Keyword(s):  
Topology Optimization ◽  
Cad System ◽  
System Database

Design and Topology Optimization of Lattice Structures Using Deformable Implicit Surfaces for Additive Manufacturing

2015 ◽  
Author(s):  
Erhan Batuhan Arisoy ◽  
Suraj Musuvathy ◽  
Lucia Mirabella ◽  
Edward Slavin
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Structural Characteristics ◽  
Product Lifecycle Management ◽  
Lattice Structures ◽  
Cad System ◽  
Computer Aided ◽  
Rapid Generation ◽  
Freeform Deformation ◽  
Surface Representations

Additive manufacturing (AM) enables creation of objects with complex internal lattice structures for functional, aesthetic, structural and fabrication considerations. Several approaches for lattice generation and optimization, and their implementations in commercial systems exist. However, these commercial systems are typically independent from a CAD system, and therefore introduces workflow complexities for product lifecycle management. In this paper, we present a unified computer-aided framework for design, computer-aided engineering analysis (CAE) of solids with lattice structures, and freeform topology optimization within the CAD system that enables a seamless workflow. The proposed framework takes as input a solid CAD model and enables rapid generation of different lattice structures as repeated arrangements of lattice template shapes that replace input solid volume. Generated internal patterns are further optimized through freeform modifications to improve structural characteristics of the input model. Lattice modeling and optimization is performed using discrete implicit surface representations for the ease in representing complex topologies and performing modeling and freeform deformation operations. The output of the proposed framework is a polygonal represenatation of the lattified model ready for 3D printing. We have implemented our framework as a plugin to the Siemens PLM NX software system and examples are demonstrated for typical products in aerospace, medical and automotive industries.

Design and Implementation of the Parametric Designing System Based on ADO

2012 ◽  
Vol 487 ◽  
pp. 281-284 ◽  
Author(s):  
Jian Xia Li ◽  
Jing Jing Huang
Keyword(s):  
Parametric Design ◽  
Design Method ◽  
Rolling Bearing ◽  
Second Development ◽  
Cad System ◽  
Design And Implementation ◽  
System Database ◽  
Parametric Cad ◽  
Total Design

With the example of the parametric CAD system of the rolling bearing, the parametric design method to the second development of the AutoCAD system based on VB by using extra database is introduced in this paper. This system can visit the extra database by ADO technique, complete the total design of the system, create the system database, realize the parametric design and parametric drawing.

Computer Assisted Design and Structural Topology Optimization of Customized Craniofacial Implants

2017 ◽  
Author(s):  
Carlos A. Gómez Pérez ◽  
Hugo I. Medellín-Castillo ◽  
Raquel Espinosa-Castañeda
Keyword(s):  
Topology Optimization ◽  
Computer Aided Design ◽  
3D Model ◽  
Titanium Implants ◽  
Computer Assisted ◽  
Structural Topology ◽  
Design And Optimization ◽  
Cad System ◽  
Modern Engineering ◽  
Craniofacial Implants

Modern design and manufacturing engineering technologies have greatly improved the way in which modern craniofacial implants are designed and fabricated. However, few efforts have been made in order to optimize their design. While the weight of polymer-based implants (e.g. PMMA implants) may not affect the patient’s comfort, the higher weight of metal-based implants (e.g. titanium implants), could greatly affect the patient’s comfort, causing in some cases nuisances and imbalance problems. Thus, the optimization of the implant becomes relevant in order to guarantee its structural stiffness but with a reduced weight. In this paper, the design and structural optimization of customized craniofacial implants based on the use of modern engineering technologies is presented. The aim is to introduce an engineering methodology for the design and optimization of customized craniofacial implants. The methodology starts from the patient’s medical images, obtained from a computerized tomography (CT), which are processed to reconstruct the digital 3D model. Next, the geometrical design of the implant is carried out in a computer aided design (CAD) system using the patient’s 3D model. Then, the structural analysis of the implant is performed using the Finite Element Method (FEM) and considering a quasi-static load. The topology optimization of the implant is made using the Solid Isotropic Material Penalization (SIMP) method. Finally, the optimized customized implant is fabricated in an additive manufacturing (AM) system. A case study of a craniofacial implant is presented and the results reveal that the proposed methodology is an effective approach to design and optimize craniofacial implants.

Topology Optimization of IPM Motors using Fourier Series

2017 ◽  
Vol 137 (3) ◽  
pp. 245-253
Author(s):  
Hidenori Sasaki ◽  
Hajime Igarashi
Keyword(s):  
Fourier Series ◽  
Topology Optimization

Topology Optimization of Superconducting Electromagnets for Particle Accelerators

2019 ◽  
Vol 139 (9) ◽  
pp. 568-575
Author(s):  
Yusuke Sakamoto ◽  
Daisuke Ishizuka ◽  
Tetsuya Matsuda ◽  
Kazuhiro Izui ◽  
Shinji Nishiwaki
Keyword(s):  
Topology Optimization ◽  
Particle Accelerators

Topology Optimization using Deep Learning

2020 ◽  
Vol 140 (12) ◽  
pp. 858-865
Author(s):  
Hidenori Sasaki ◽  
Yuki Hidaka ◽  
Hajime Igarashi
Keyword(s):  
Deep Learning ◽  
Topology Optimization
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