Implementation of DFA in Conceptual and Embodiment Design Using Decision Support Problems

1995 ◽  
Author(s):  
Timothy W. Simpson ◽  
Matthew D. Bauer ◽  
Janet K. Allen ◽  
Farrokh Mistree
Keyword(s):  
Decision Support ◽  
Conceptual Framework ◽  
Conceptual Design ◽  
Design For Assembly ◽  
Embodiment Design ◽  
Assembly Method ◽  
Physical Form ◽  
Per Se ◽  
Preceding Question ◽  
Evacuation System

Abstract How can Design for Assembly be implemented when the conceptual form of a product being designed is known but the information defining its physical form is vague and incomplete? In this paper, we answer the preceding question from a decision-based perspective. Specifically, we adapt Boothroyd and Dewhurst’s Design for Assembly method for use in conceptual and embodiment design. We achieve this adaptation through the use of Decision Support Problems, and we illustrate our adaptation through an example, namely, the design of an aircraft evacuation system. Our emphasis in this paper is on presenting the conceptual framework used to make suitable Boothroyd and Dewhurst’s Design for Assembly to conceptual design and not the numerical results per se.

scholarly journals CONCEPTUAL DESIGN FOR ASSEMBLY IN AEROSPACE INDUSTRY: SENSITIVITY ANALYSIS OF MATHEMATICAL FRAMEWORK AND DESIGN PARAMETERS

2021 ◽  
Vol 1 ◽  
pp. 731-740
Author(s):  
Giovanni Formentini ◽  
Claudio Favi ◽  
Claude Cuiller ◽  
Pierre-Eric Dereux ◽  
Francois Bouissiere ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Conceptual Design ◽  
Design Parameters ◽  
Design For Assembly ◽  
Mathematical Framework ◽  
Commercial Aircraft ◽  
System Architectures ◽  
Complex Engineering ◽  
Aircraft System ◽  
Definition Of

AbstractOne of the most challenging activity in the engineering design process is the definition of a framework (model and parameters) for the characterization of specific processes such as installation and assembly. Aircraft system architectures are complex structures used to understand relation among elements (modules) inside an aircraft and its evaluation is one of the first activity since the conceptual design. The assessment of aircraft architectures, from the assembly perspective, requires parameter identification as well as the definition of the overall analysis framework (i.e., mathematical models, equations).The paper aims at the analysis of a mathematical framework (structure, equations and parameters) developed to assess the fit for assembly performances of aircraft system architectures by the mean of sensitivity analysis (One-Factor-At-Time method). The sensitivity analysis was performed on a complex engineering framework, i.e. the Conceptual Design for Assembly (CDfA) methodology, which is characterized by level, domains and attributes (parameters). A commercial aircraft cabin system was used as a case study to understand the use of different mathematical operators as well as the way to cluster attributes.

A conceptual framework for a multi-criteria decision support tool to select technologies for resource recovery from urban wastewater

2021 ◽  
Vol 300 ◽  
pp. 113608
Author(s):  
Seda Sucu ◽  
Maria O. van Schaik ◽  
Ramazan Esmeli ◽  
Djamila Ouelhadj ◽  
Timothy Holloway ◽  
...  
Keyword(s):  
Decision Support ◽  
Conceptual Framework ◽  
Decision Support Tool ◽  
Resource Recovery ◽  
Urban Wastewater ◽  
Support Tool

scholarly journals Rural as Periphery Per Se? Unravelling the Discursive Node

2016 ◽  
Vol 13 (2) ◽  
pp. 11-28 ◽  
Author(s):  
Bianka Plüschke-Altof
Keyword(s):  
Discourse Analysis ◽  
Conceptual Framework ◽  
Critical Discourse Analysis ◽  
Rural Areas ◽  
The Other ◽  
Critical Discourse ◽  
Hegemonic Discourse ◽  
Spatial Inequalities ◽  
Urban Rural ◽  
Per Se

Despite often being used interchangeably, the dominant equation of the rural with the peripheral is not self-evident. In order to critically scrutinize the discursive node, the aim of this article is twofold. On one hand, it argues for overcoming the prevalent urban‒rural divide and dominant structural approaches in sociological and geographical research by introducing discursive peripheralization as a conceptual framework, which allows the analysis of the discursive (re-)production of socio-spatial inequalities on and between different scales. On the other hand, this article explores how rural areas are constituted as peripheries within a hegemonic discourse naturalizing the ascription of development (non-)potentials. Following a critical discourse analysis approach, this will be illustrated in the case of periphery constructions in Estonian national print media.

A Conceptual Framework for Designing Arctic Underwater Transport Vessels

2021 ◽  
Vol 27 (5) ◽  
pp. 367-377
Author(s):  
Т. M. Grigor’ev ◽  
L. Е. Mamedova
Keyword(s):  
United States ◽  
Conceptual Framework ◽  
Conceptual Design ◽  
The United States ◽  
Underwater Vehicles ◽  
The Arctic ◽  
Arctic Zone ◽  
Shipbuilding Industry ◽  
Sea Transportation ◽  
The Creation

Aim. The presented study is aimed at the development of the underwater transport fleet as an effective tool for maintaining dominance in the Arctic.Tasks. The authors analyze the efficiency of sea transportation in the Arctic; examine and characterize existing vessels in the Arctic zone and the experience of different countries in creating underwater vehicles; determine requirements for underwater transport vessels.Methods. This study develops requirements for the conceptual design of underwater transport vessels that could serve as the basis of an underwater Arctic transport fleet with allowance for existing approaches to designing such vessels.Results. The costs of re-equipping submarines of old design for the creation of underwater transport vessels are preliminarily assessed. A number of objectives for future implementation are described. The influence of the project on the shipbuilding industry is shown.Conclusions. Building underwater transport vessels is technically possible, economically profitable, and expedient. This project can be implemented only in two countries — Russia and the United States.

From Hydrological Models to Policy-Relevant Decision Support Systems (DSSs)

2010 ◽  
pp. 81-123
Author(s):  
Mukhtar Hashemi ◽  
Enda O’Connell
Keyword(s):  
Decision Support ◽  
Conceptual Framework ◽  
Decision Support Systems ◽  
Information And Communication Technologies ◽  
Support Systems ◽  
Process Models ◽  
Study Approach ◽  
Political Sciences ◽  
Computing Platforms ◽  
The 1960S

Since the advent of modern computing platforms in the 1960s and despite scepticisms and uncertainties, modelling systems have become indispensable tools in water resources management. They have been postulated to support the decision-making process and hence the term decision support systems (DSSs) emerged. Hydroinformatics is a recent term compared to computational hydraulics and hydrological watershed modelling but it is an encompassing cross disciplinary concept covering hydraulics, hydrology, environmental engineering, socioeconomic and political (institutional) disciplines and it uses information and communication technologies to provide evidences for decision-makers. The aims of this chapter are two fold: (a) to review the current trends in modelling activities based on historical precedence; and (b) to present a conceptual framework for development of a comprehensive DSS using a case study approach. Hence, this chapter consists of three main parts: (1) a historical account of the DSSs, starting from early single process models to current integrated comprehensive basin-wide DSSs; (2) having established a historical perspective, case studies from Iranian experience are presented to outline a methodological (conceptual) framework for developing a comprehensive DSS. Examples of policy-relevant DSSs from the latest research are also presented. It is concluded that there would be a greater demand in the future to develop integrated policy-relevant DSSs comprising not only the technical and engineering aspects but to include the socioeconomic and political sciences as well. The new DSSs should be able to deal with uncertainties such as climate change (i.e. to have scenario analysis capabilities), be able to compare different management strategies using multi-criteria analysis tools and to include socio-economic, institutional and environmental sustainability criteria.

Integrating Big Data Technology Into Organizational Decision Support Systems

2021 ◽  
pp. 639-657
Author(s):  
Ahmad M. Kabil
Keyword(s):  
Big Data ◽  
Decision Support ◽  
Conceptual Design ◽  
Support Systems ◽  
Test Case ◽  
Detailed Design ◽  
Global Competitiveness ◽  
Design And Implementation ◽  
Business Complexity ◽  
Case Based

With the growing trend of global competitiveness and business complexity, the need arises for integrating BDTs in the design of ODSS. BDTs enable ODSS to deal with data of volume, variety, and velocity beyond the capability of traditional databases and data-warehouses in ODSS. The basic modules of updated ODSS with BDT are presented as a conceptual design, which provides a general foundation for the detailed design and implementation of an application. The validation of the proposed conceptual design is conducted on a test-case based upon the BSC perspectives as well as requirements common for ODSS scenarios. The results show that each requirement of the system is supported by a set of integrated modules in a balanced way. The modules of the highest contribution in the conceptual design are the modules most related to BDT. The initial stages of the implementation of the system are given.

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