Towards Identifying the Elements of a Minimum Information Model for Use in a Model-Based Definition

2017 ◽  
Author(s):  
Alexander McDermott Miller ◽  
Nathan W. Hartman ◽  
Thomas Hedberg ◽  
Allison Barnard Feeney ◽  
Jesse Zahner
Keyword(s):  
Research Study ◽  
Product Information ◽  
3D Models ◽  
Information Model ◽  
Manufacturing Companies ◽  
Minimum Information ◽  
3D Cad ◽  
Model Based ◽  
Cad Models ◽  
Industry Sectors

The Model-Based Enterprise (MBE) paradigm is being adopted by manufacturing companies in a variety of industries. Companies benefit from enhanced visualization, documentation, and communication capabilities when 3D annotated product definitions, or Model-Based Definitions (MBD) replace two-dimensional drawings throughout an enterprise. It is critical that product information, much of which is defined implicitly in drawings, is not lost in this transition. This presents a challenge to authors and translators of 3D models used through the product lifecycle. They must understand the semantics of the product information typically presented by a drawing then explicitly include this information, in a computer-interpretable form, in the MBD. The research study described in this paper seeks to discover what is the minimum set of required information to carry out all the tasks in a given workflow of a model-based enterprise. A survey was conducted across various industry sectors to identify the foundational elements of this Minimum Information Model (MIM) in selected workflows. This study identified the information used within the specific workflows, the capabilities of 3D CAD models to carry this information, and the implications for doing so.

An Agent Based Framework to Automatically Generate 3D CAD Models of Customer Specified Products

2003 ◽  
Author(s):  
Zahed Siddique ◽  
Karunakar Reddy Boddu
Keyword(s):  
Mass Customization ◽  
3D Model ◽  
Product Information ◽  
3D Models ◽  
The Internet ◽  
Agent Based ◽  
User Input ◽  
3D Cad ◽  
Design And Manufacturing ◽  
Cad Models

To survive in today’s volatile market, companies are striving to deliver greater quality, more customization, faster response, more innovative designs and lower prices. The new shift in the current market has introduced the concept of mass customization. One of the aspects of mass customization is to provide customers with products that are manufactured to their needs and requirements. To provide such a support requires better integration of customer with different stages of design and manufacturing. Expansion of the Internet provides an opportunity for such an integration, which will need to link design and manufacturing of the company with the customer. In current approaches, customer usually specifies the options and gets the price or simple pictures of the object. In this paper a system is presented, where customer options and size parameters are gathered using the Internet and is used to automatically generate 3D CAD model of the product and then display the 3D model to the customer for feedback. Development of a framework to generate 3D models from user input will require maintaining explicit correspondence among various types of product information from a module perspective. The Internet based system presented in this paper uses templates to automatically generate 3D CAD models of components, assemble them into products and then export VRML files that are displayed to the customer.

A Translator for Converting CAD Models to Second Life

2010 ◽  
Author(s):  
Ratnadeep Paul ◽  
Sam Anand
Keyword(s):  
Virtual Worlds ◽  
Second Life ◽  
Product Life Cycle ◽  
Manufacturing Industry ◽  
Product Information ◽  
Life Cycle Management ◽  
3D Models ◽  
Transfer Product ◽  
Cad Models ◽  
Business Entities

Product Life-cycle Management (PLM) has been one of the single most important techniques to have been developed in the manufacturing industry. The increasing capabilities of internet and the ever increasing dependence of business entities on internet have led to the development of metaverses — internet-based 3D virtual worlds — which act as business platforms where companies display and showcase their latest products and services. This is in turn has led to a demand for development of methods for the easy transfer of data from stand alone PLM systems to the internet based virtual worlds. This paper presents the development of a translator which will transfer product data of 3D models created in CAD systems to an internet based virtual world. This translator uses a faceted-surface approach to transfer the product information. In this work CAD models were converted to a CAD-neutral data format, JT file format, and finally recreated in the metaverse Second Life (SL). Examples of models translated from JT to SL have been presented. A technique known as prim optimization, which increases the efficiency of the translation was also incorporated in the algorithm for the translator. Examples of prim optimization have been provided in the paper.

Shape Comparison of 3D Models Based on Features and Parameters

2008 ◽  
Author(s):  
Karthik Viswanathan ◽  
Sagar Chowdhury ◽  
Zahed Siddique
Keyword(s):  
Computer Aided Design ◽  
Product Family ◽  
3D Models ◽  
3D Cad ◽  
Solid Models ◽  
Cad Models ◽  
3D Solid ◽  
Aided Design ◽  
Distinct Features ◽  
Common Platform

Computer-Aided Design (CAD) is used extensively during mechanical product design, which involves creating 3D models of components and then assembling them into modules and systems. Methods and tools to compare components and identify a common platform using these 3D CAD models of components would facilitate faster specification of product family architecture. Hence, there is a need to develop means for comparing component geometry, in order to identify the common and distinct features, determine component commonality, and identify a common platform for the set of components. This paper presents an approach to determine geometric commonality between components from their 3D solid models. The approach consists of performing a pair-wise comparison between components. To measure commonality for a pair of components, first all feature-pair’s dimensions and positions are measured, which then combined to give the overall component-pair commonality.

scholarly journals Promoting Model-Based Definition to Establish a Complete Product Definition

2016 ◽  
Author(s):  
Shawn P. Ruemler ◽  
Kyle E. Zimmerman ◽  
Nathan W. Hartman ◽  
Thomas Hedberg ◽  
Allison Barnard Feeney
Keyword(s):  
Manufacturing Industry ◽  
Relevant Information ◽  
3D Models ◽  
Information Model ◽  
Common Information ◽  
Domain Specific ◽  
Model Based ◽  
Common Information Model ◽  
The Common ◽  
Product Definition

The manufacturing industry is evolving and starting to use 3D models as the central knowledge artifact for product data and product definition, or what is known as Model-based Definition (MBD). The Model-based Enterprise (MBE) uses MBD as a way to transition away from using traditional paper-based drawings and documentation. As MBD grows in popularity, it is imperative to understand what information is needed in the transition from drawings to models so that models represent all the relevant information needed for processes to continue efficiently. Finding this information can help define what data is common amongst different models in different stages of the lifecycle, which could help establish a Common Information Model. The Common Information Model is a source that contains common information from domain specific elements amongst different aspects of the lifecycle. To help establish this Common Information Model, information about how models are used in industry within different workflows needs to be understood. To retrieve this information, a survey mechanism was administered to industry professionals from various sectors. Based on the results of the survey a Common Information Model could not be established. However, the results gave great insight that will help in further investigation of the Common Information Model.

scholarly journals Promoting Model-Based Definition to Establish a Complete Product Definition

2016 ◽  
Vol 139 (5) ◽  
Author(s):  
Shawn P. Ruemler ◽  
Kyle E. Zimmerman ◽  
Nathan W. Hartman ◽  
Thomas Hedberg ◽  
Allison Barnard Feeny
Keyword(s):  
Manufacturing Industry ◽  
Three Dimensional ◽  
Relevant Information ◽  
3D Models ◽  
Information Model ◽  
Common Information ◽  
Model Based ◽  
Common Information Model ◽  
The Common ◽  
Product Definition

The manufacturing industry is evolving and starting to use three-dimensional (3D) models as the central knowledge artifact for product data and product definition, or what is known as model-based definition (MBD). The model-based enterprise (MBE) uses MBD as a way to transition away from using traditional paper-based drawings and documentation. As MBD grows in popularity, it is imperative to understand what information is needed in the transition from drawings to models so that the models represent all the relevant information needed for processes to continue efficiently. Finding this information can help to define what data are common amongst different models in different stages of the lifecycle, which could help to establish a common information model. The common information model is a source that contains common information from domain specific elements amongst different aspects of the lifecycle. To help establish this common information model, information about how models are used in the industry within different workflows needs to be understood. To retrieve this information, a survey mechanism was administered to industry professionals from various sectors. Based on the results of the survey a common information model could not be established. However, the results gave great insight that will help in further investigation of the common information model.

Integrating Materials Model-Based Definitions into Design, Manufacturing, and Sustainment: A Digital Twin Demonstration of Incorporating Residual Stresses in the Lifecycle Analysis of a Turbine Disk

2020 ◽  
Vol 21 (2) ◽  
Author(s):  
Saikiran Gopalakrishnan ◽  
Nathan W. Hartman ◽  
Michael D. Sangid
Keyword(s):  
Residual Stresses ◽  
Information Exchange ◽  
Process Model ◽  
Product Information ◽  
Turbine Disk ◽  
Forecast Performance ◽  
Digital Twin ◽  
Model Based ◽  
Geometric Data ◽  
Cad Models

Abstract Model-based definitions (MBDs) aim to capture both geometric and non-geometric data in digital product definitions using 3D computer-aided design (CAD) models, as a form of product definition baseline, to disseminate product information across different stages of the lifecycle. MBDs can potentially eliminate error-prone information exchange associated with traditional paper-based drawings and improve the fidelity of component details, captured using 3D CAD models. A component’s behavior during its lifecycle stages influences its downstream performance, and if included within the MBD of a part, could be used to forecast performance upfront during the design and explore newer designs to enhance performance. However, current CAD capabilities limit associating behavioral information with the component’s shape definition. This paper presents a CAD-based tool to store and retrieve metadata using point objects within a CAD model, creating linkages to spatial locations within the component. The tool is illustrated for storage and retrieval of bulk residual stresses developed during the manufacturing of a turbine disk acquired from process modeling and characterization. Further, variations in residual stress distribution owing to process model uncertainties have been captured as separate instances of the disk’s CAD models to represent part-to-part variability as an analogy to track individual serialized components for digital twins. The propagation of varying residual stresses from these CAD models within the damage tolerance analysis performed at critical locations in the disk has been demonstrated. The combination of geometric and non-geometric data inside the MBD, via storage of spatial and feature varying information, presents opportunities to create digital twin(s) of actual component(s).

Enhancing Model Reuse Through 3D Annotations: A Theoretical Proposal for an Annotation-Centered Design Intent and Design Rationale Communication

2013 ◽  
Author(s):  
Jorge Dorribo-Camba ◽  
Gerardo Alducin-Quintero ◽  
Pascual Perona ◽  
Manuel Contero
Keyword(s):  
3D Models ◽  
Design Rationale ◽  
Design Intent ◽  
Data Annotation ◽  
3D Cad ◽  
Cad Models ◽  
The Impact ◽  
Theoretical Proposal

The long term goals of this research are to study the effectiveness of CAD 3D annotation techniques to support the explicit communication of design intent and rationale, and to analyze the impact of the annotations in the alteration and reutilization of 3D models in a product design context. Towards these goals, we are initially examining the formal annotation practices defined by model-based standards such as ASME Y14.41-2012 and ISO 16792:2006, and their implementation in current CAD systems. This paper presents a prototype implementation of a module to automatically extract textual information from annotated 3D CAD models. Automated extraction of data annotation can be used to analyze both the content and the quality of the annotations with the purpose of determining what makes annotations effective and ultimately communicating design intent. The architecture of a system designed to manage and manipulate this information is also described and analyzed.

Research of Slicing CAD Models with Pro/TOOLKIT for Integral Stereolithography

2011 ◽  
Vol 321 ◽  
pp. 226-229
Author(s):  
Guang Shen Xu ◽  
Tian You Jing
Keyword(s):  
3D Models ◽  
High Accuracy ◽  
3D Cad ◽  
System A ◽  
Direct Slicing ◽  
Section Profile ◽  
Cad Models ◽  
Slicing Method ◽  
Tower Model ◽  
Image Format

According to the requirements of integral Stereolithography (integral SL) System, a new direct slicing method under Pro/ENGINEER environment is developed. 3D CAD models are sliced with Pro/TOOLKIT in Pro/ENGINEER environment, and section image of 3D models can be obtained and saved as image format. Dynamic masks are produced with the cross-section images which obtained through the slicing method by dynamic pattern generator, and then 3D real prototyping is fabricated conveniently with integral SL System. A 3D tower model is sliced with this method, and the tower prototyping also is fabricated with integral SL System. Compared with the STL format files slicing method, the new slicing method can achieve high accuracy of layer section profile. The direct slicing method provides a new solution for integral SL system to build objects with high accuracy.

Intuitive 3D Computer-Aided Design (CAD) System With Multimodal Interfaces

2013 ◽  
Author(s):  
V. G. Nanjundaswamy ◽  
Amit Kulkarni ◽  
Zhuo Chen ◽  
Prakhar Jaiswal ◽  
Sree Shankar S. ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Brain Computer Interface ◽  
3D Models ◽  
Multimodal Interfaces ◽  
Computer Interface ◽  
Cad Modeling ◽  
3D Cad ◽  
Cad System ◽  
Cad Models ◽  
Aided Design

The existing interfaces for 3D CAD modeling softwares use 2D subspace inputs such as x and y axes of mouse to create 3D models. These existing interfaces are inherently modal because one needs to switch between subspaces, and disconnects the input space from modeling space. This makes existing interfaces tedious, complex, non-intuitive and difficult to learn. In this paper, a multi-sensory, interactive, and intuitive 3D CAD modeling interface is presented to address these shortcomings. Three different modalities (gestures, brain-computer interface, and speech) have been used for creating interactive and intuitive 3D CAD modeling interface. DepthSense® camera from SoftKinetic is used to recognize gestures, EEG Neuro-headset from Emotiv® is used for acquiring, and processing neuro-signals and CMU Sphinx is used for recognizing and processing speech. Multiple CAD models created by several users using the proposed multi-modal interface are presented. In conclusion, the proposed system is easier to learn and use as compared to the already existing systems.

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