An Agent Mechanism for Version Support in Engineering Design

1998 ◽  
Author(s):  
Barry Florida-James ◽  
Peter Norman ◽  
Bill Hills ◽  
Nick Rossiter ◽  
Kuo-Ming Chao
Keyword(s):  
Engineering Design ◽  
Design Environment ◽  
Product Lifecycle ◽  
Industrial Case Study ◽  
Preliminary Results ◽  
Complete Product

Abstract This paper presents a mechanism for complete product lifecycle version support in an engineering design environment. The mechanism addresses issues such as heterogeneity and interoperability through the use of co-operating agents. The version model is presented and the agents that implement this model. An industrial case study is presented with preliminary results to illustrate the mechanism.

The Maintenance and Handling of Constraints in Machine Design

2009 ◽  
Author(s):  
Jason Matthews ◽  
Lian Ding ◽  
Jonathan Feldman ◽  
Glen Mullineux
Keyword(s):  
Engineering Design ◽  
Machine Design ◽  
Design Activity ◽  
Industrial Case Study ◽  
Design Constraints ◽  
Engineering Design Process ◽  
Design Variation ◽  
Single Objective ◽  
Machinery Design

The engineering design process can be considered to be constraint oriented. It involves the identification, negotiation and resolution of an evolving set of constraints. The nature of engineering design is that such problems are rarely as simple as satisfying a single objective with all the design variation continuous and unbounded. Previous research has shown that as the design evolves, the designer can miss or overlook some of these constraints. To overcome this, the paper presents a supportive approach which allows the designer to annotate the initial CAD drawn models with the design constraints. These constraints are then maintained with the model as it evolves, this presents the opportunity to refine the constraints when the design activity requires. The approach has been created to support manufacturing machinery design and is demonstrated with an industrial case study.

An Approach to Complete Product Definition Using STEP in Cloud Manufacturing

2018 ◽  
Author(s):  
Rivai Wardhani ◽  
Chao Liu ◽  
Khamdi Mubarok ◽  
Xun Xu
Keyword(s):  
Computer Aided Design ◽  
Cloud Manufacturing ◽  
Product Lifecycle ◽  
Data Format ◽  
Cad Systems ◽  
Complete Product ◽  
Total Integration ◽  
Aided Design ◽  
Product Definition

The advancement of various product development technologies is contributing to a total integrated manufacturing process. And model-based design (MBD) is a key enabler for such a total integration. The current MBD approach still does not support retaining of information needed at different stages of a product lifecycle. Collaboration among different Computer Aided Design (CAD) systems still becomes an issue due to the different proprietary data format. This research provides a consolidated approach to complete product definition based on STEP AP242 neutral data format using general notes data structure. To validate and demonstrate the solution, the approach is instantiated in P21 design file and implemented in cloud manufacturing as a case study.

Product lifecycle management application selection framework based on interval-valued spherical fuzzy COPRAS

2021 ◽  
pp. 1-14
Author(s):  
Mete Omerali ◽  
Tolga Kaya
Keyword(s):  
Selection Process ◽  
Product Lifecycle Management ◽  
Manufacturing Companies ◽  
Product Lifecycle ◽  
Industrial Case Study ◽  
Industrial Companies ◽  
Selection Framework ◽  
The Right ◽  
Lifecycle Management

Digitalization is the key trend of the Industry 4.0 revolution. Industrial companies are transforming the way they design and maintain their products and solutions. The user requirements become more demanding. Competition among the manufacturing companies is at its limits and transforms the products to be more complex. Yet, other challenges such as faster time to market, higher quality requirements and legislation force enterprises to provide new ways of design, manufacture and service their end products. Product Lifecycle Management (PLM) is a key solution to track the entire lifespan of the product from idea to design, design to manufacture and manufacture to service. Besides the complexity of products and production, the selection of the right PLM solution which will become the backbone of enterprises is an open problem. In this paper, a thorough literature review is conducted to analyze the most important features for selecting the right PLM solution for manufacturing firms. Moreover, to overcome the challenge of decision makers’ (DM) subjective judgments, a novel interval value spherical fuzzy COPRAS (IVSF-COPRAS) multi-criteria decision making (MCDM) method is introduced. The paper aims to help enterprises rapidly identify the best alternative vendor/solution to be selected based on the need of the organization. In order to show the applicability, DM inputs are collected from a leading defense company where the PLM selection process is ongoing. The industrial case study is provided to demonstrate the success of the proposed selection framework.

scholarly journals On systematically building a controlled natural language for functional requirements

2021 ◽  
Vol 26 (4) ◽  
Author(s):  
Alvaro Veizaga ◽  
Mauricio Alferez ◽  
Damiano Torre ◽  
Mehrdad Sabetzadeh ◽  
Lionel Briand
Keyword(s):  
Information System ◽  
Natural Language ◽  
Qualitative Methodology ◽  
Case Study Research ◽  
Empirical Evaluation ◽  
Functional Requirements ◽  
Industrial Case Study ◽  
Requirements Specifications ◽  
Financial Domain

AbstractNatural language (NL) is pervasive in software requirements specifications (SRSs). However, despite its popularity and widespread use, NL is highly prone to quality issues such as vagueness, ambiguity, and incompleteness. Controlled natural languages (CNLs) have been proposed as a way to prevent quality problems in requirements documents, while maintaining the flexibility to write and communicate requirements in an intuitive and universally understood manner. In collaboration with an industrial partner from the financial domain, we systematically develop and evaluate a CNL, named Rimay, intended at helping analysts write functional requirements. We rely on Grounded Theory for building Rimay and follow well-known guidelines for conducting and reporting industrial case study research. Our main contributions are: (1) a qualitative methodology to systematically define a CNL for functional requirements; this methodology is intended to be general for use across information-system domains, (2) a CNL grammar to represent functional requirements; this grammar is derived from our experience in the financial domain, but should be applicable, possibly with adaptations, to other information-system domains, and (3) an empirical evaluation of our CNL (Rimay) through an industrial case study. Our contributions draw on 15 representative SRSs, collectively containing 3215 NL requirements statements from the financial domain. Our evaluation shows that Rimay is expressive enough to capture, on average, 88% (405 out of 460) of the NL requirements statements in four previously unseen SRSs from the financial domain.

scholarly journals Investigation and Improvement of Standard External Lightning Protection System: Industrial Case Study

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4118
Author(s):  
I Made Yulistya Negara ◽  
Daniar Fahmi ◽  
Dimas Anton Asfani ◽  
IGN Satriyadi Hernanda ◽  
Rendi Bagus Pratama ◽  
...  
Keyword(s):  
Petrochemical Industry ◽  
Protection System ◽  
Lightning Protection ◽  
Industrial Case Study ◽  
Grounding System ◽  
Electromagnetic Transient ◽  
Petrochemical Company ◽  
Program Software ◽  
Ground Potential

In this study, the lightning protection system and grounding system of one plant of the petrochemical industry were investigated, evaluated, and improved. The methods used in this study were rolling sphere and angle protection methods. The grounding system of the building under study was modeled and simulated using ATP/EMTP (Alternative Transient Program/Electromagnetic Transient Program) software. The results show that the external lightning protection system of the prilling tower studied does not adhere to IEC 62305 and IEC 1024-1-1 standards. Moreover, the grounding configuration of the DCS building was not appropriate for protecting sensitive equipment inside. Lightning causes an enormous potential difference between lightning ground rods in the grounding system. Additionally, disabling the existing surge protective device (SPD) causes an increase in the magnitude of Ground Potential Rise at the DCS building. Improvement of the lightning protection system of the prilling tower and DCS building on Plant 1 of this petrochemical company as well as some other recommendations for improvements are proposed. This paper also shows evidence that external lightning protection, internal lightning protection, and the grounding system need to be connected to make an exemplary lightning protection system.

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