Towards a Specification for a Product Model to Assist the Design of Injection Moulds

2001 ◽  
Author(s):  
Héctor Morano ◽  
Vicente Borja ◽  
Marcelo López ◽  
Álvaro Ayala
Keyword(s):  
Data Model ◽  
Concurrent Design ◽  
Product Model ◽  
New Model ◽  
Model Driven ◽  
Software Applications ◽  
Product Models ◽  
Design And Manufacture ◽  
Data Requirements

Abstract Product models come from the analysis of the data requirements to support the design and manufacture of products. These models are implemented in databases aimed at providing information to software applications that assist the concurrent design of products. This paper presents the requirements of a data model driven software system to aid the design of injection moulds and analyses two product models which were developed in different contexts but capable of representing injection moulded parts and moulds. A case study is used to show the application of each one of the models selected. Finally, some conclusions of the analysis are drawn in order to set the foundation of a new model.

Data Model Support to Assist the Concurrent Design of Injection Plastic Parts and Their Moulds

2003 ◽  
Author(s):  
He´ctor Morano ◽  
Vicente Borja ◽  
Marcelo Lo´pez ◽  
A´lvaro Ayala
Keyword(s):  
Data Model ◽  
Data Models ◽  
Concurrent Design ◽  
Software Applications ◽  
Product Models ◽  
Plastic Parts ◽  
Design And Manufacture ◽  
Data Requirements ◽  
Model Support

Product models come from the analysis of data requirements to support product design and manufacture. These models are implemented in databases aimed at providing information to software applications that assist the concurrent design of products. This paper presents the specifications of data models to assist the concurrent design of injection plastic parts and their moulds. The product models are original since they capture part and mould life cycle aspects using the same data structure. The models also link product functional information to the design process and consider the capacities of an injection machine. The paper introduces the underlined structure of the above mentioned data models and uses a case study to show their capabilities. Finally, some conclusions are presented.

ExProMod, a Product Development Support Tool

2008 ◽  
Vol 44-46 ◽  
pp. 345-354 ◽  
Author(s):  
Lian Ding ◽  
Jason Matthews ◽  
C. McMahon ◽  
Glen Mullineux
Keyword(s):  
Information Management ◽  
Information Loss ◽  
Future Research ◽  
Product Model ◽  
Model Framework ◽  
Support Tool ◽  
Product Models ◽  
Development Support ◽  
Design And Manufacture

The initial investigations are presented into three equipment design and manufacture companies, and their issues relating to information loss and inaccuracies, and present the employment of an extended product model framework to assist the engineers in overcoming the issues identified. Three key scientific issues in this field are addressed. They are the customer driven goals and practices, design change capture and product models, and the methodology employed to answer the problem stated. The information generated during the service engineer’s visit and the redesign process is encapsulated within a new ExProMod, so that it could potentially be revisited and retrieved throughout the whole product life. A case study has shown that the proposed ExProMod is able to record the information generated in a constraint-based design/redesign so that it has the capability to assist the designers to assimilate and digest constraint-based design, assist the designers to assimilate and digest constraint-based design, offer information management benefits for the machine redesign in the industry, and Presents a tool to capture redesign changes and their respective rationale. In addition, the directions for future research are also prospected.

Modeling of Feature-Based Design Process

1998 ◽  
Author(s):  
Fei Gao ◽  
Dieter Roller
Keyword(s):  
Design Process ◽  
Data Exchange ◽  
Concurrent Design ◽  
Product Model ◽  
Product Data ◽  
Product Models ◽  
Critical Issues ◽  
Feature Based ◽  
Feature Based Design ◽  
Feature Evolution

Abstract Capturing design process is becoming an important topic of feature-based modeling, as well as in product data exchange, concurrent design, and cooperative design. Three critical issues on the modeling of design process are considered in this paper, namely, feature concepts, feature evolution, and the semantic consistencies of the states of product models. A semantics-based product model is introduced to facilitate the description of both conceptual and detailed models, and to maintain the semantic consistencies of product states. The process is represented by feature states and their evolution records. Feature type variation and prototype-based design are proposed to support feature evolution. A conceptual description of the design process and an example are given.

Conceptual Design Using Generic Object Inheritance

2008 ◽  
Author(s):  
Olof Johansson ◽  
Henric Andersson ◽  
Petter Krus
Keyword(s):  
Conceptual Design ◽  
Power Plants ◽  
Design Parameters ◽  
Product Model ◽  
Complex Products ◽  
Business Jet ◽  
Product Models ◽  
Multiple Copies ◽  
The Impact

Conceptual design for complex products like aircraft and power plants requires a considerable effort since the product models become very large if they are to cover all important aspects for different stakeholders. To cope with this overall effort, designers have to rely on legacy designs and reuse, and improve the product concepts incrementally between product generations. This paper describes a generalized inheritance mechanism we call generic object inheritance that enables quick reuse and modification of conceptual product models at any level in their hierarchical break down structures. By facilitating reuse of conceptual models of previously well studied products, more time can be spent on developing the parts that contain the edge of a new product generation. This enables keeping the modified concepts in context of a complete analyzable product model where the impact of changes can be studied without having to maintain multiple copies of the same object structures. The paper describes how generic object inheritance is used for developing the next version of a conceptual product model of a small business jet, while reusing the essential parts of the previous version with minor modifications to design parameters and substructures. The design and core mechanisms of generic object inheritance are briefly described, and illustrated with examples from the case study.

scholarly journals Using MDE to Develop Suitable User Interfaces for Older Adults: A Case Study

Proceedings ◽  
2018 ◽  
Vol 2 (19) ◽  
pp. 1201
Author(s):  
Yonatan Pineda Olarte ◽  
Fáber D. Giraldo ◽  
William J. Giraldo ◽  
Sergio F. Ochoa ◽  
Ramón Hervás
Keyword(s):  
Older Adults ◽  
User Interfaces ◽  
Emotional Support ◽  
Development Process ◽  
Model Driven Engineering ◽  
Adult Care ◽  
Model Driven ◽  
Software Applications ◽  
Important Challenge

Software applications have been identified as potentially suitable tools to assist older adults in several aspects of their lives, like healthcare, emotional support and personal security. However, developing usable and useful applications for this population represents an important challenge, given that no systematic solutions have been proposed to support such a process. This article hypothesizes that a model-driven engineering (MDE) approach can help generate suitable user interfaces for elderly people, making the development process repeatable and allowing the systematic reuse of design knowledge about products for these end-users. To determine the validity of such hypothesis, the article presents the results of a case study where a healthcare supporting system for older adults, developed by using an MDE approach, was evaluated in four older adult care centers. The results obtained were highly positive, showing MDE as a possible path to address systematically the development of these applications.

scholarly journals AN APPROACH FOR CALCULATING LAND VALUATION BY USING INSPIRE DATA MODELS

2017 ◽  
Vol XLII-4/W6 ◽  
pp. 19-21 ◽  
Author(s):  
A. C. Aydinoglu ◽  
R. Bovkir
Keyword(s):  
Data Structures ◽  
Data Model ◽  
Data Models ◽  
Data Set ◽  
Valuation Process ◽  
Land Valuation ◽  
Gis Software ◽  
Data Requirements ◽  
Target Data

Land valuation is a highly important concept for societies and governments have always emphasis on the process especially for taxation, expropriation, market capitalization and economic activity purposes. To success an interoperable and standardised land valuation, INSPIRE data models can be very practical and effective. If data used in land valuation process produced in compliance with INSPIRE specifications, a reliable and effective land valuation process can be performed. In this study, possibility of the performing land valuation process with using the INSPIRE data models was analysed and with the help of Geographic Information Systems (GIS) a case study in Pendik was implemented. For this purpose, firstly data analysis and gathering was performed. After, different data structures were transformed according to the INSPIRE data model requirements. For each data set necessary ETL (Extract-Transform-Load) tools were produced and all data transformed according to the target data requirements. With the availability and practicability of spatial analysis tools of GIS software, land valuation calculations were performed for study area.

An Assessment of Assembly Mating Conditions in the Context of a Product Model

1992 ◽  
Author(s):  
James E. Baxter ◽  
Neal P. Juster ◽  
Alan de Pennington
Keyword(s):  
Data Model ◽  
Degrees Of Freedom ◽  
Product Model ◽  
Product Models ◽  
Design And Manufacturing ◽  
Speed Reducer ◽  
The University ◽  
Mating Conditions ◽  
Application Specific

Abstract Recent research at the University of Leeds has concentrated on the role of product models in a design and manufacturing environment. This paper describes initial progress in a project developing a data model that can support applications requiring assembly information throughout a product’s life-cycle. Research by other groups worldwide have used sets of mating conditions to describe the physical connectivity between components in an assembly. However these mating conditions are usually application specific. Experiments have been conducted at Leeds to determine whether these previously reported approaches can form the basis for a set of mating conditions which can be represented in a Product Model from which many applications can draw. The experiments were performed by modelling the relationships between components of a shaft mounted speed reducer by 1) using a set of mating conditions and 2) describing the constraints on the degrees of freedom between pairs of components. The perceived shortcomings of these approaches are discussed.

Constraint Management in Distributed Product Models

1997 ◽  
Author(s):  
David L. Henderson ◽  
David C. Anderson
Keyword(s):  
Geometric Constraints ◽  
Design System ◽  
File Transfer ◽  
Product Model ◽  
Team Members ◽  
Software Applications ◽  
Product Models ◽  
Mechanical Products ◽  
Model Constraint ◽  
Propagation Methods

Abstract Computer models for complex mechanical products are often distributed among design team members who use disparate software tools. Communication between these tools has previously been limited to occasional file transfer. However, recent research has begun to allow software applications to communicate automatically to maintain the integrity of the evolving product model. Constraint satisfaction plays an important role in maintaining design integrity. This paper describes a methodology for representing and satisfying constraints in distributed design environments. The methodology employs a propagation method that allows the solution steps to be posed as messages between applications. The propagation methods also facilitate support for a broad range of object and constraint types. We show how the method can be applied to both algebraic and geometric constraints. We also describe a method called symbolic propagation that is used for solving coupled and underconstrained systems. A distributed assembly design system that was implemented to demonstrate and validate the methods is also described.

scholarly journals Assisting design for manufacture using the data model driven approach

2001 ◽  
Vol 215 (12) ◽  
pp. 1757-1771 ◽  
Author(s):  
V Borja ◽  
R Bell ◽  
J A Harding
Keyword(s):  
Life Cycle ◽  
Data Model ◽  
Product Life Cycle ◽  
Data Models ◽  
Support Design ◽  
Design For Manufacture ◽  
Product Life ◽  
Model Driven ◽  
Model Driven Approach

The data model driven approach argues that computer aided engineering systems should be based on information data models in order to properly support the concurrent design of products. These models are the foundation for database representations of products and factories, and enable information sharing across unlinked software applications that address different stages of the product life cycle. This paper presents a product data model capable of capturing product life cycle information, and in particular its utilization for representing manufacturing information is described. A manufacturing data model that depicts the capabilities of manufacturing cells in terms of their processes and resources is also introduced. The potential benefits of using these data models to support design for manufacture are shown through a case study. The case study includes implementation of the models, their utilization representing a product and three manufacturing facilities, and demonstrates their value in the redesign of a component.

scholarly journals Investigating the health effects of 3 coexisting tobacco and nicotine products using system dynamics population modeling: An Italian population case study

2021 ◽  
Author(s):  
Oscar M Camacho ◽  
Andrew Hill ◽  
Stacy Fiebelkorn ◽  
Aaron Williams ◽  
James J Murphy
Keyword(s):  
Data Availability ◽  
Sufficient Information ◽  
Italian Population ◽  
Product Model ◽  
Product Models ◽  
Life Years ◽  
The Usa ◽  
Complex Models ◽  
Life Years Lost

AbstractWith the proliferation of tobacco and nicotine products, there might be a need for more complex models than current two-product models. We have developed a three-product model able to represent interactions between 3 products in the marketplace. We also investigate if using several implementations of two-product models could provide sufficient information to assess 3 coexisting products. Italy is used as case-study with THPs and e-cigarettes as the products under investigation. We use transitions rates estimated for THPs in Japan and e-cigarettes in the USA to project what could happen if the Italian population were to behave as the Japanese for THP or USA for e-cigarettes. Results suggest that three-product models may be hindered by data availability while two product models could miss potential synergies between products. Both, THP and E-Cigarette scenarios, led to reduction in life-years lost although the Japanese THP scenario reductions were 3 times larger than the USA e-cigarette projections.

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