scholarly journals Data exchange of parametric CAD models using ISO 10303-108

2007 ◽  
Author(s):  
Junwahn Kim ◽  
Michael J Pratt ◽  
Raj Iyer ◽  
Ram Sriram
Keyword(s):  
Data Exchange ◽  
Cad Models ◽  
Parametric Cad ◽  
Iso 10303

Extension of the STEP Standard for Parametric CAD Models

2001 ◽  
Vol 1 (3) ◽  
pp. 269-275 ◽  
Author(s):  
Michael J. Pratt
Keyword(s):  
Technical Note ◽  
Present Contribution ◽  
International Standard ◽  
Cad Models ◽  
Parametric Cad ◽  
Iso 10303 ◽  
Step Standard

The first Technical Note in this series [1] introduced the international standard ISO 10303, informally known as STEP, and the second [2] dealt with some practical aspects of using the standard for the exchange of CAD models. It was noted in [1] that the current published parts of the standard are restricted to the representation and exchange of non-parameterized models. The present contribution discusses the implications of that restriction and describes the progress of the ISO TC184/SC4 committee towards its removal. As will be shown, this extension of the STEP standard will lead to considerable benefits for industry.

Semantic Interoperability of GD&T Data Through ISO 10303 Step AP242

2016 ◽  
Author(s):  
Adarsh Venkiteswaran ◽  
Sayed Mohammad Hejazi ◽  
Deepanjan Biswas ◽  
Jami J. Shah ◽  
Joseph K. Davidson
Keyword(s):  
Data Exchange ◽  
Smart Manufacturing ◽  
Context Model ◽  
Product Model ◽  
Shape Information ◽  
Computer Aided Process Planning ◽  
Model Based ◽  
Computer Aided ◽  
Iso 10303 ◽  
Manufacturing Applications

Industries are continuously trying to improve the time to market through automation and optimization of existing product development processes. Large companies vow to save significant time and resources through seamless communication of data between design, manufacturing, supply chain and quality assurance teams. In this context, Model Based Definition/Engineering (MBD) / (MBE) has gained popularity, particularly in its effort to replace traditional engineering drawings and documentations with a unified digital product model in a multi-disciplinary environment. Widely used 3D data exchange models (STEP AP 203, 214) contains mere shape information, which does not provide much value for reuse in downstream manufacturing applications. However, the latest STEP AP 242 (ISO 10303-242) “Managed model based 3D engineering” aims to support smart manufacturing by capturing semantic Product Manufacturing Information (PMI) within the 3D model and also helping with long-term archival. As a primary, for interoperability of Geometric Dimensions & Tolerances (GD&T) through AP 242, CAx Implementor Forum has published a set of recommended practices for the implementation of a translator. In line with these recommendations, this paper discusses the implementation of an AP 203 to AP 242 translator by attaching semantic GD&T available in an in-house Constraint Tolerance Graph (CTF) file. Further, semantic GD&T data can be automatically consumed by downstream applications such as Computer Aided Process Planning (CAPP), Computer Aided Inspection (CAI), Computer Aided Tolerance Systems (CATS) and Coordinate Measuring Machines (CMM). Also, this paper will briefly touch base on the important elements that will constitute a comprehensive product data model for model-based interoperability.

An Engineering Product Model Based on STEP Protocols

1994 ◽  
Vol 10 (04) ◽  
pp. 281-296
Author(s):  
James T. Higney ◽  
Joanne J. Ouillette
Keyword(s):  
Information Content ◽  
Computer Aided Design ◽  
Data Exchange ◽  
Digital Data ◽  
Product Model ◽  
Engineering Product ◽  
Significant Step ◽  
Cad Models ◽  
Application Protocols ◽  
Graphic Database

Draft STEP (Standard for the Exchange of Product Model Data) application protocols, developed by the Navy Industry Digital Data Exchange Standards Committee (NIDDESC), have been issued to define the information content of a product model for a ship. The work reported in this paper combines the existing CAD models of the DDG51 Class design with a newly developed non-graphic database so that the overall information content complies with the STEP protocols. This work represents the first-time implementation of the application protocols and is a significant step in the Navy's plan to do the design of variants of the DDG51 Class totally in computer-aided design (CAD). The combined graphic/non-graphic database is referred to as the DDG51 engineering product model. Emphasis has been placed on populating the non-graphic database with the information necessary to perform all required engineering analyses. The basic schema described in this paper may be extended to support other areas of interest, such as logistics support.

A Universal Feature Definition Frame for 3-D CAD Model Conversion

2013 ◽  
Vol 690-693 ◽  
pp. 2781-2786
Author(s):  
Chang Le Sun ◽  
Da Yong Ning ◽  
Wei Xiong ◽  
Hai Tao Wang
Keyword(s):  
Data Exchange ◽  
Target System ◽  
Cad Model ◽  
Important Research ◽  
General Outline ◽  
Cad Systems ◽  
Target Model ◽  
Universal Feature ◽  
Cad Models ◽  
Model Conversion

Data exchange between 3-D CAD systems has a very important research value both in theory and in application. This paper presents a general outline of a Universal Feature Definition (UFD) frame, which provides universal support for todays 3-D CAD systems. Through the medium of UFD feature, this frame can realize the conversion of 3-D CAD models from source system to target system according to API mapping. This CAD model conversion method may overcome the disadvantage of traditional geometric method that the target model is not editable. This frame also provides the conversion interface of user defined features, which is convenient for the user to customize the desired conversion process. The frame has been implemented between Catia and UG with successful results.

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