Assembly Representation Within a Product Data Framework

1993 ◽  
Author(s):  
Brian W. Henson ◽  
James E. Baxter ◽  
Neal P. Juster
Keyword(s):  
Data Model ◽  
Tolerance Analysis ◽  
Design For Assembly ◽  
Product Data ◽  
Analysis And Design ◽  
Functional Relationships ◽  
Data Framework ◽  
The University ◽  
Design And Manufacture ◽  
Assembly Analysis

Abstract Recent research at the University of Leeds demonstrated how a product data model can integrate the information required and used during product design and manufacture. The product data framework developed during this research structured assemblies as lists of parts and did not consider information about the relationships between components necessary to support applications such as tolerance analysis and design for assembly. This paper describes how we intend to combine research in assembly representation, functional modeling and data modeling to describe the geometric and functional relationships between components of assemblies. Focus is provided by considering both the design process and the information requirements of a design for assembly analysis.

‘An old and faithful servand’: A Pair of Early Seventeenth-Century Gauntlet Gloves given by King Charles I to Sir Henry Wardlaw

Costume ◽  
2015 ◽  
Vol 49 (1) ◽  
pp. 8-31 ◽  
Author(s):  
Claire Robinson
Keyword(s):  
Seventeenth Century ◽  
High Status ◽  
Social Significance ◽  
Charles I ◽  
The Social ◽  
King Charles I ◽  
Technological Developments ◽  
The University ◽  
Design And Manufacture ◽  
Private Collections

A pair of embroidered seventeenth-century gauntlet gloves, reputedly presented by King Charles I to his courtier Sir Henry Wardlaw, was donated to the University of St Andrews in 2001. This article sets out to uncover the truth behind this nearly four-hundred-year-old family legend by investigating Sir Henry’s royal connections and the social significance of the gauntlet gloves as a high-status, luxury clothing accessory. Based on the study of historic gloves in museum and private collections, it endeavours to date the gloves by discussing their design and manufacture within the context of seventeenth-century clothing fashion. This article also explores the symbolism behind the gauntlet gloves’ decorative scheme by unravelling some of the hidden messages that are conveyed about cultural, religious, political and technological developments and perspectives through seventeenth-century embroidery.

scholarly journals Developing and Implementing a Conceptual Composite Materials Design Database

1993 ◽  
Author(s):  
William J. Rasdorf ◽  
Lisa K. Spainhour
Keyword(s):  
Composite Materials ◽  
Computer Technology ◽  
Data Model ◽  
Data Representation ◽  
Future Research ◽  
Clear Understanding ◽  
Analysis And Design ◽  
Problems And Solutions ◽  
Software Interfaces ◽  
Design Software

Abstract Researchers and materials engineers require a greater understanding of the problems and solutions that emerge when integrating composite materials data with computer technology so that utilitarian composite materials databases can be developed to effectively and efficiently support analysis and design software. Composite materials constitute a representational challenge due to their composition and use. However, this paper suggests that a conceptual composite material data model and application software interfaces must be developed to support the dissemination and use of composite materials data. This paper primarily serves to analyze several of the problems facing developers of composite materials databases, evolving from the complexity of the materials themselves and from the current lack of testing and data representation standards. Without a clear understanding of the scope and nature of these problems, there is no possibility of designing concise yet comprehensive composites data models, yet we feel that such an understanding is presently lacking. In addition, an effort is made to present possible solutions to these difficulties being suggested and/or implemented both by the authors and by other researchers in the field. Such an effort provides a firm foundation upon which future research may be based.

scholarly journals ZonaTIC: Sitio web para la divulgación de la ciencia de las TIC en pro de la inclusión digital

2019 ◽  
pp. 14-18
Author(s):  
Apolinar Trejo-Cuevas ◽  
Gerardo Parra-Rodríguez ◽  
María Teresa Díaz-Robledo ◽  
Javier Jesús Torres-Yáñez
Keyword(s):  
Information And Communication Technologies ◽  
Web Applications ◽  
Teaching Strategy ◽  
Project Based Learning ◽  
Design Development ◽  
Digital Inclusion ◽  
Analysis And Design ◽  
Information And Communication ◽  
Waterfall Model ◽  
The University

Objective. Implement a website that allows the outreach of the science of Information and Communication Technologies to the staff of the university community of the UTNG to facilitate digital inclusion, taking advantage of the current infrastructure that the university has, as well as its human capital. Methodology. The adopted development model was a concurrent model: For the Frontend development the spiral model was used, which facilitates its design through the stages of prototyping, analysis and design. On the other hand, for the development of the Backend, the waterfall model was used, given the nature of the project, where the requirements are pre-established and with few changes. The phases of this model are: (Requirements. Survey of requirements, Design. Development of the database and class diagrams, Implementation Coding, Check. Tests, Maintenance. Correct errors in functionality) Contribution. Implementation of project-based learning (PBL) as a motivational teaching strategy in the development of web applications. Use of robust development tools used today by software factories, such as: Java, Spring, HTML5, CSS3, and Apache Maven; all this under a Model View Controller architecture.

The Analysis and Design of a New Type Wedge Surfaces of Sprag Overrunning Clutch

2013 ◽  
Vol 823 ◽  
pp. 43-46 ◽  
Author(s):  
Feng Zhang ◽  
Zhi Fu Gao ◽  
Wu Hui Lu
Keyword(s):  
Carrying Capacity ◽  
High Performance ◽  
Failure Modes ◽  
Meaningful Work ◽  
Surface Design ◽  
Analysis And Design ◽  
Wedge Surface ◽  
New Type ◽  
Design And Manufacture ◽  
Working Situation

Sprag overrunning clutch is one of key components in the drive system. Its a meaningful work to design and manufacture high performance sprag clutch to meet the practical working situation. In order to design reliable and durable clutch with good dynamic characteristics, this paper put forward a new type wedge surfaces which is a combination of involute and eccentric arc. On the basis of analysis of a clutch structure, work principles and failure modes, the sprag ,key element of the clutch, was demonstrated the feasibility of involute in the use of wedge surface design by analyzing the characteristics of involute, and the main sprag parameters were designed and analysized. The design of the new wedge surface, increasing the strut angle and effective cam rise, increased carrying capacity, reducing the contact stress, and extending service life, which laid the foundation for the sprag overrunning clutch design improvements.

Modeling Evolving Product Data for Concurrent Engineering

1993 ◽  
Author(s):  
K. J. Cleetus
Keyword(s):  
Concurrent Engineering ◽  
Data Model ◽  
Heterogeneous Data ◽  
Direct Access ◽  
Complex Data ◽  
Dynamic Nature ◽  
Product Data ◽  
Team Members ◽  
Structure Tree ◽  
Unified View

Abstract In order to make the traditional product structure tree representation amenable to concurrent engineering, relationships like perspective-of and dependent-on have to be added to the essential part-of relationship. Complex data can be held in proprietary formats, while simple data will be in a common representation for direct access by diverse disciplines. Coordination among team members in a project can be carried out using such a model. Besides, a virtually unified view of all the data is possible, though they may lie in distributed and heterogeneous data bases. A very necessary characteristic of such a model is that its time evolution should be easy to represent in order to reflect the dynamic nature of product development, where the model itself, and not merely the data values change. Managing versions is also facilitated by the comprehensive structure of the Unified Product Data Model (UPDM).

Intelligent Product Data Exchange

1999 ◽  
Author(s):  
Karl-H. Grote ◽  
Soeren Schumann
Keyword(s):  
Engineering Design ◽  
Data Model ◽  
Data Exchange ◽  
Product Data ◽  
Engineering Design Process ◽  
Problems And Solutions ◽  
Computer Based ◽  
Software Platforms ◽  
Product Data Model ◽  
Intelligent Product

Abstract The computer based engineering design process today is characterized by a large variety of (specialized) systems. This and the ongoing globalization and outsourcing of engineering services and competencies causes an increased need for data exchange over the borders of the numerous CAx-systems. Under these circumstances, data exchange has been playing an important role for time and cost sensitive development and manufacturing in every field of industry. This paper presents actual problems and solutions of data exchange over the borders of modern software platforms. It includes the description of possible influences on a product data model and introduces the latest data exchange concepts.

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