Building Input File of MCNP 3D Model with Basic Graphics Exchange Specification

2012 ◽  
Vol 591-593 ◽  
pp. 77-79
Author(s):  
Ai Hua Chen ◽  
Ming Xia ◽  
Yong Hui Tang ◽  
Ying Zhang
Keyword(s):  
Geometric Modeling ◽  
3D Model ◽  
Curve Surface ◽  
Automatic Generation ◽  
Input File ◽  
Cad System ◽  
Modeling Process ◽  
Application Problem ◽  
Cad Cam ◽  
Cam Software

With the help of IGES standard file which was the exchange specification of initial graphics, different CAD system could change the data of product by neutral file’s format conversing. The automatic generation of 3D-Model curve surface in the MCNP input file was realized by using VC++ language.This method has solved the problem of the complication of MCNP geometric modeling process and the 3D-Model input problem in the MCNP. The input of MCNP was transferred the application problem of CAD/CAM software. The data and figure of varies software could be shared and converted. The work of design could be simple, the process of design could be speeded up and the cycle of design was shorted. Work efficiency and practicability were improved. If precision was controlled in 3D-Model, the result could be expected by contrast.

scholarly journals Real time object customization in CAD system

2019 ◽  
Vol 15 (2) ◽  
pp. 1066
Author(s):  
Z. F. Z. Abidin ◽  
M. N. Osman Zahid
Keyword(s):  
Real Time ◽  
Computer Aided Design ◽  
3D Model ◽  
Visual Basic ◽  
Cad System ◽  
Model Modification ◽  
Software Interface ◽  
Cad Cam ◽  
Aided Design ◽  
Cam Software

Object customization in Computer Aided Design (CAD) is a method used to modify the sketch parameters and change the model geometries. This method is one of important features in part modelling which empowered CAD user to simply modify their product. The conventional method of modifying CAD model is usually relied on the manual editing. This paper outlines a development of program than can be integrated in CAD/CAM system for real time object customization. It uses Visual Basic (VB) programming with custom Graphical User Interface (GUI) generated in NX10 (CAD/CAM software) interface. The main contribution of this research is a tool for real time object customization that capable to assist the modification of 3D model. In order to develop the tool, 3D model modification instructions are translated into programming codes by using Journaling tools in NX interface. Editable parameters are identified based on the model shapes. The related codes are reconstructed, modified and linked to the functional GUI.  This allows user to simply modify the model shapes in real time with minimum process steps. The performance of the method is evaluated in terms of the reduction of process steps and time in modifying the 3D model in CAD system. All the findings and details of approach are presented.

Research on Chamfer Software of Complex Parts

2013 ◽  
Vol 631-632 ◽  
pp. 1335-1341
Author(s):  
Shi Yong ◽  
Wen Tao Liu
Keyword(s):  
3D Model ◽  
Tool Path ◽  
Machining Parameters ◽  
Cad Cam ◽  
Programming Software ◽  
A Chain ◽  
Definition Of ◽  
Complex Parts ◽  
Cam Software ◽  
Location Point

In order to meet the needs of enterprises for chamfering complex parts, based on the customization of commercial CAD/CAM software, chamfer programming software is developed. According to user’s machining demands for a part, a chain of edges of a part is extracted from its 3D model. With preprocessing of the chain of edges, the continuity of the chain is estimated, and the start and end point of those edges are automatic obtained. Furthermore, with human-machine dialogue, machining parameters is set by users. By definition of the primary and secondary surfaces of the chain of edges, and interpolation of the edges, the positions of cutter location point and postures of cutter are calculated. Finally the interference of tool path is checked, and tool path is simulated. The software solves the programming problem of chamfering complex parts.

Study on CAD/CAM Software System of Machining Spatial Curved Surface by WEDM

2011 ◽  
Vol 188 ◽  
pp. 705-710 ◽  
Author(s):  
Bing Bing Yan ◽  
G.J. Chen ◽  
J.F. Shuai ◽  
D.C. Huang
Keyword(s):  
Data Exchange ◽  
Curve Surface ◽  
Machining Process ◽  
Software System ◽  
Machining Process Simulation ◽  
Key Technologies ◽  
Cad Cam ◽  
Design Idea ◽  
The Mathematical Model ◽  
Cam Software

The design, modeling and simulation are one of the key technologies of CAD/CAM software system. The mathematical model of the CAD/CAM system for machining spatial surface was given firstly. After the design idea of the CAD/CAM system was describe in detail, the workflow of the CAD/CAM software system was illustrated, and then data exchange mechanism was determined and detailed steps were given simultaneously. Under MFC framework, the CAD/CAM software system was finished using OpenGL, and the configuration and machining process simulation were carried out. All these works provide an effective approach to raising the productivity and precision of machining spatial curve surface part by WEDM-HS.

Parametric Modeling CAD-CAM of the Ankle and Pathological Related Situations

2014 ◽  
Vol 657 ◽  
pp. 740-744
Author(s):  
Iulia Huzu ◽  
Nicolae Florin Cofaru
Keyword(s):  
Healthy Subject ◽  
3D Model ◽  
Treatment Strategies ◽  
Parametric Modeling ◽  
Cad System ◽  
Primary Object ◽  
Graphic Modeling ◽  
The Status ◽  
Modeling Software ◽  
Cad Cam

It is primary object of the present study to create a 3D model of the human ankle and an axis system that will show the position the tibia and the foot on a healthy subject. Regarding this scope of the study, the first step in obtaining the 3D model of the bones is scanning. The graphic modeling software used is Catia V5 R20. It is another object of the present study to create an axis system that will be very easy to maneuver and on which we can show different pathological situations, not only on a healthy subject, creating their assembly reference systems considering the mechanical and anatomical axes existing and creating prerequisites for the study of different possible pathological situations. For this scope, was used a triorthogonal axis system called skeleton that is defined as a system of axes Euler. This means that the angles can change the grid, in the desire to analyze different situations. In this study the focus is on the situation of varus equinus, in which the foot leg is not aligned with the tibia, as it is on a healthy subject. It was realized an important element: the incorporation of geometric and dimensional references. The last object in this study is to determine the status of CAE, in order to study the stress and the strain. Creating the CAD system is very important because it can be used to study the osteoarticular system, treatment strategies and related surgery.

The Concrete Casting Matrixes Inserts Design Preparation Based on the Master Models

2013 ◽  
Vol 702 ◽  
pp. 259-262 ◽  
Author(s):  
Cezary Grabowik ◽  
Witold Janik
Keyword(s):  
3D Model ◽  
Border Line ◽  
Traditional Design ◽  
Outer Border ◽  
Cad Cam ◽  
Technical Sense ◽  
Master Model ◽  
Concrete Casting ◽  
Industrial Needs ◽  
Cam Software

Currently industrial needs exceed traditional design approach solutions. To satisfy that need designer have to deal with mutually exclusive restrictions. The solution to this problemis to maintain these restrictions with proper methodthat guarantees right result. The concrete casting matrixes are not only transits beauty and art but they have also important technical sense in final product. The master model represents the final product a concrete sidewalk brick which have specified form of the top surface. This special structure of the top surface helps drain water off the brick in order to maintain proper griping properties of it after it rains. As soon as the master model wasscannedit was necessary to change outer border line of 3D model because themaster model appeared to be a little bit bigger than the original one. Finally the 3D model it is the outer border line and its geometry were modified in order to keep the original model functionality. All modifications were done with application of reverse engineering and CAD/CAM software.

A New Developed Interface for CAD/MCNP Data Conversion

2006 ◽  
Author(s):  
Noha Shaaban ◽  
Fukuzo Masuda ◽  
Hesham Nasif ◽  
Masao Yamada ◽  
Hidenori Sawamura ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Geometric Modeling ◽  
Input Data ◽  
Fusion Reactor ◽  
Computer Code ◽  
Data Conversion ◽  
Input File ◽  
Cell Geometry ◽  
Cad System ◽  
Aided Design

In a complex and huge system as in ITER fusion reactor, the creation of the geometrical input data of Monte Carlo (MC) codes such as MCNP is a highly exhausting task. Accordingly, it is a general approach to shift the geometric modeling into a computer aided design (CAD) system and to use an interface, which performs the exchange of CAD data into a representation appropriate for MC code. We have developed efficient algorithms and computer code, which are used to convert Parasolid format CAD files including solid and void data into MCNP input data. The CAD-MCNP conversion processes include creating surface equations; determining surface senses; constructing cell geometry and creating MCNP input file. This paper describes the basic algorithms used for the CAD/MCNP interface along with some applications for different geometries.

scholarly journals DIGITAL VOLUME SCANNING SYSTEM FOR IMPROVING THE QUALITY OF GARDEN RETRACTION

2019 ◽  
Vol 85 (4) ◽  
pp. 96-99
Author(s):  
S.S. Terekhov ◽  
N.S. Khrol
Keyword(s):  
Clinical Case ◽  
3D Model ◽  
3D Scanning ◽  
Scanning System ◽  
Cad System ◽  
Cad Cam ◽  
Plaster Models

Digital 3D scanning technology of the CAD / CAM system was used to increase the accuracy of the stump depth of the examined teeth. Collapsible plaster models were made for each clinical case and scanned in the CAD system - digital volume scanner. Using this technology on a 3D model to determine the exact depth of preparation of the stump. It was found that the study by digital volume scanning to determine and verify the depth of preparation of the examined teeth by orthopaedists, allows a more accurate and careful approach to the rationality of retraction for fixed orthopaedic structures.

EMBODIMENT OF AUTOMATED DESIGNATION OF SURFACE FINISH OF THE OBJECTS OF THE 3D WORKPIECE MODEL

2020 ◽  
pp. 3-9
Author(s):  
M. S. Chepchurov ◽  
B. S. Chetverikov ◽  
A. N. Maslovskaja ◽  
N. S. Ljubimyj
Keyword(s):  
Surface Finish ◽  
Geometric Modeling ◽  
3D Model ◽  
Geometric Model ◽  
3D Models ◽  
Work Piece ◽  
Electronic Model ◽  
Cad Cam ◽  
Engineering Drawings ◽  
Cross Platform

The article discusses the questions of automation of design engineering in the sphere of the formation of 3D geometric model of work-pieces. The authors have designed and carried out an algorithm in the form of the additional script in the software bundle of the geometric modeling, enabling to execute the designation of surface finish in 3D models. The algorithm is based on the freeware CAD/CAM/CAE system – FreeCAD. The structure of an element from an ordered set of data about a geometric object that identifies the surface roughness is determined that allows to expand the capabilities of methods for providing storage and transmission of data of the electronic model of the product. Creation of additional procedures based on the formed list of surface finish according to the GOST 2.309–73 makes it possible to embody 3D-model transfer to the workplaces. It means that time of embodiment of preproduction and production of work-piece can be cut. Nowadays freeware solid geometry engine with open source code is not used due to the absence of additional specific possibilities of making of engineering drawings according to the regulatory requirements. The authors have offered the method of increasing the capabilities of software bundle of the geometric modeling, which provides the increase of target audience of freeware. The authors propose to use free cross-platform language Python to create the script of designation of surface finish in the space of 3D-model. Usage of the example of the script and its testing can help to design other procedures of making of engineering drawings to create fully-featured free cross-platform geometric designing.

scholarly journals Data Transfer Between CAD System and RP System: A Report

2012 ◽  
Author(s):  
Syaimak Abd. Syukur ◽  
Masine Md Tap
Keyword(s):  
Rapid Prototyping ◽  
Computer Aided Design ◽  
3D Model ◽  
Data Transfer ◽  
Cad System ◽  
System A ◽  
Computer Aided ◽  
Cad Cam ◽  
Cad Models ◽  
Aided Design

Sistem Rapid Prototyping (RP) ialah teknologi yang menukar sesuatu reka bentuk yang dibina dalam Computer Aided Design (CAD) ke suatu komponen model 3D. Model CAD biasanya dibina dalam sistem CAD yang kemudiannya dihantar ke sistem RP. Antaramuka yang baik antara sistem CAD dan sistem RP adalah salah satu faktor penting dalam menghasilkan prototaip yang berkualiti tinggi. Kertas kerja ini melaporkan hasil uji kaji yang dijalankan untuk mengenal pasti masalah-masalah dalam memindahkan data antara satu sistem CAD (UNIGRAPHICS) dan satu sistem RP (QUICKSLICE). Berdasarkan hasil uji kaji dan analisis yang dijalankan, satu garis panduan dicadangkan untuk perpindahan data yang lebih berkesan antara sistem CAD (UNIGRAPHICS) dan sistem RP (QUICKSLICE). Kata kunci: CAD; CAM; CAD/CAM; Rapid Prototyping Rapid Prototyping (RP) is a technology that transform a design generated in Computer Aided Design (CAD) to a 3D model parts. CAD models are usually done on a CAD system and then transported into the RP system. A good interface between the CAD and the RP system is one of the key factors of producing a good quality prototype. This paper reports on the results of an experimentation carried out to identify the problems in transferring data between a CAD system (UNIGRAPHICS) and an RP system (QUICKSLICE). Based on the experimentation’s results and analysis, a basic guideline is proposed for a safer data transfer between the CAD system (UNIGRAPHICS) and an RP system (QUICKSLICE). Key words: CAD; CAM; CAD/CAM; Rapid Prototyping

scholarly journals Use of a 3D Model for Automatic Generation of Template Matching Algorithms

TEM Journal ◽  
2021 ◽  
pp. 1363-1369
Author(s):  
Marek Kocisko ◽  
Martin Pollák ◽  
Juraj Kundrík
Keyword(s):  
Computer Vision ◽  
Quality Control ◽  
Template Matching ◽  
3D Model ◽  
Automatic Generation ◽  
Digital Version ◽  
Cad System ◽  
Standard Procedures ◽  
Current Topic

This paper deals with the current topic of computer vision which is used in quality control, accurate measurement or robot guidance. Templates are a key component of template matching algorithms. Creating them is a complex and demanding process. The authors of the paper try to describe the possibilities of automated template generation from information that is already available about the product. A digital version in the CAD system exists of virtually every product nowadays. An experiment has shown that with the use of this information, it is possible to create a template that will replace templates created through standard procedures.

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