Automatic CAD Models Comparison and Re-meshing in the Context of Mechanical Design Optimization

Author(s):  
Jean-Christophe Cuillière ◽  
Vincent François ◽  
Khaled Souaissa ◽  
Abdelmajid Benamara ◽  
Hedi BelHadjSalah
Author(s):  
ELIEL EDUARDO MONTIJO-VALENZUELA ◽  
SAUL DANIEL DURAN-JIMENEZ ◽  
LUIS ALBERTO ALTAMIRANO-RÍOS ◽  
JOSÉ ISAEL PÉREZ-GÓMEZ ◽  
OSCAR SALMÓN-AROCHI

The objective of this research is to manufacture a prototype of a teaching die for the specialty of precision mechanical design in mechatronic engineering, in order to achieve the skills required in unit two, regarding dies. The methodology used consists of five stages: 1. Definition of the preliminary conditions. 2. Theoretical calculations for die design. 3. Design, modeling and assembly using computer-aided software (CAD) of the parts that make up the die. 4. Validation with simulation of finite element analysis (AEF). 5. Manufacture of parts and physical assembly of the die. A functional prototype was obtained with which the teacher and student can perform calculations, designs and CAD models, AEF analysis of the static and fatigue type, manufacture of rapid prototypes using 3D printing, the identification of the parts that make up a die and their functioning. The advantage of this prototype, compared to metal die-cutting machines, is its low cost of production and manufacturing, it does not require expensive and specialized machinery for manufacturing, specific designs can be made by the students and its subsequent manufacture within the laboratories of the Technological Institute of Hermosillo.


2016 ◽  
Author(s):  
Qianbo Lu ◽  
Jian Bai ◽  
Kaiwei Wang ◽  
Shuqi Lou ◽  
Xufen Jiao ◽  
...  

2009 ◽  
Vol 131 (12) ◽  
Author(s):  
Min Li ◽  
Y. F. Zhang ◽  
J. Y. H. Fuh ◽  
Z. M. Qiu

In product design, a large proportion of three-dimensional (3D) computer-aided design (CAD) models can be reused to facilitate future product development due to their similarities in function and shape. This paper presents a novel method that incorporates modeling knowledge into CAD model similarity assessment to improve the effectiveness of reuse-oriented retrieval. First, knowledge extraction is performed on archived feature-based CAD models to construct feature dependency directed acyclic graph (FDAG). Second, based on the FDAG subgraph decomposition, two useful component partitioning approaches are developed to extract simplified essential shapes and meaningful subparts from CAD models. Third, the extracted shapes and their FDAG subgraphs are indexed. Finally, the indexed shapes that are similar to user-sketched queries are retrieved to reuse, and FDAG information of the retrieved shapes is provided as redesign suggestions. Experimental results suggest that the incorporation of modeling knowledge greatly facilitates CAD model retrieval and reuse. Algorithm evaluations also show the presented method outperforms other 3D retrieval methods.


1992 ◽  
Vol 20 (3) ◽  
pp. 187-203 ◽  
Author(s):  
A. K. DHINGRA ◽  
S. S. RAO

2015 ◽  
Vol 25 (3) ◽  
pp. 1-4 ◽  
Author(s):  
Seetha Lakshmi Lalitha ◽  
R. C. Gupta

2019 ◽  
Vol 27 (4) ◽  
pp. 1031-1048 ◽  
Author(s):  
Ali Riza Yildiz ◽  
Hammoudi Abderazek ◽  
Seyedali Mirjalili

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