CONCEPTUAL DESIGN EMPLOYING SELECTED HEURISTIC METHODS

2011 ◽  
Vol 159 (1) ◽  
pp. 135-144
Author(s):  
Sebastian KOZIOŁEK ◽  
Patrycja BOCHNIAK ◽  
Tadeusz SMOLNICKI
Keyword(s):  
Knowledge Acquisition ◽  
Conceptual Design ◽  
Design Methodology ◽  
Heuristic Methods ◽  
Space Design ◽  
Design Representation ◽  
Innovative System ◽  
Technical Specifications ◽  
Advanced Knowledge ◽  
New System

The article presents the conceptual design methodology employing Synectics to build space design representation of a new system. This space is a set of parametric attributes. All of the attributes describe parametric value limits to define the technical specifications of an innovative system. Synectics is one of the heuristic methods applied in the process of basic and advanced knowledge acquisition to develop innovative concepts. In the paper conceptual design with the use of selected analogies is presented.

Development of a new conceptual design methodology for parallel hybrid aircraft

2017 ◽  
Vol 233 (3) ◽  
pp. 1047-1058 ◽  
Author(s):  
Luca Boggero ◽  
Marco Fioriti ◽  
Sabrina Corpino
Keyword(s):  
Conceptual Design ◽  
Design Methodology ◽  
Aircraft Design ◽  
Propulsion Systems ◽  
Hybrid Propulsion ◽  
Innovative Methodology ◽  
Parallel Hybrid ◽  
Innovative Solution ◽  
Innovative System ◽  
The Subject

In this paper, an innovative methodology for the conceptual design of hybrid-powered airplanes is proposed. In particular, this work focuses on parallel hybrid architectures, in which the thermal engine is mechanically coupled to an electric motor, both supplying propulsive power during a limited number of flight phases, e.g. during takeoff and climb. This innovative solution is the subject of several studies being carried out since the current decade. In this paper, a brief overview of the works conducted by other researchers is provided. Then, an overall aircraft design methodology is proposed, which is derived from the most renewed design algorithms. The original contribution of this work is represented by the development of a methodology for the design of hybrid propulsion systems. Moreover, the proposed method is integrated within a global aircraft design methodology. In particular, several effects of the innovative system on the entire aircraft are considered, for instance the variation of the empty mass or the impacts on fuel consumption. The paper ends with some case studies of the proposed design methodology, and a discussion of the obtained results is provided.

Serious games: leverage for knowledge management

2014 ◽  
Vol 26 (3) ◽  
pp. 235-252 ◽  
Author(s):  
Caroline Bayart ◽  
Sandra Bertezene ◽  
David Vallat ◽  
Jacques Martin
Keyword(s):  
Higher Education ◽  
Knowledge Acquisition ◽  
Serious Games ◽  
Design Methodology ◽  
Management Competencies ◽  
Content Type ◽  
Exploratory Investigation ◽  
Practical Implications ◽  
Research Show ◽  
Significant Factors

Purpose – The purpose of this paper is to investigate if the use of “serious games” with students can improve their knowledge acquisition and their academic performance. Design/methodology/approach – The research is an exploratory investigation resorting to the use of a serious game to evaluate the evolution of the students’ competencies in project management, through questionnaires processed using a structural “learning model.” Findings – This research shows indeed that the use of “serious games” improves the knowledge acquisition and management competencies of the students with the evidencing of significant factors contributing to this improvement. Practical implications – The findings of this research show that serious games can be an effective tool to be used in teaching students particularly as traditional methods are less and less accepted by today's students. Originality/value – Although the use of games is not something new in education, it is still limited in teaching practices in higher education. This experiment can help lecturers and trainers to resort to them in their pedagogy and to conceive them according to variables that can enhance their effectiveness.

Personalized knowledge push system based on design intent and user interest

2015 ◽  
Vol 230 (11) ◽  
pp. 1757-1772 ◽  
Author(s):  
Zhan-Song Wang ◽  
Ling Tian ◽  
Yuan-Hao Wu ◽  
Bei-Bei Liu
Keyword(s):  
Knowledge Acquisition ◽  
Conceptual Design ◽  
Current Knowledge ◽  
Target Function ◽  
Design Knowledge ◽  
Prototype System ◽  
Sorting Algorithm ◽  
Illustrative Case ◽  
User Interest ◽  
Design Intent

Existing knowledge provides important reference for designers in mechanical design activities. However, current knowledge acquisition methods based on information retrieval have the problem of inefficiency and low precision, which mainly meet the requirement for knowledge coverage. To improve the efficiency of knowledge acquisition and ensure the availability of design knowledge, this paper proposes a knowledge push service method based on design intent and user interest. First, the design intent model, which is mainly the formal expression of the target function of conceptual design, is built. Second, the user interest model that consists of domain themes and operation logs is built, and an automatic updating method of user interest is proposed. Third, a matching method of design knowledge based on design intent, and a sorting algorithm of knowledge candidates based on user interest are proposed to realize personalized knowledge active push service. Finally, a prototype system called Personalized Knowledge Push System for Mechanical Conceptual Design (MCD-PKPS) is implemented. An illustrative case demonstrates that the proposed method can successfully improve the efficiency and availability of knowledge acquisition.

scholarly journals Characterization and Design of Functional Quasi-Random Nanostructured Materials Using Spectral Density Function

2017 ◽  
Vol 139 (7) ◽  
Author(s):  
Shuangcheng Yu ◽  
Yichi Zhang ◽  
Chen Wang ◽  
Won-kyu Lee ◽  
Biqin Dong ◽  
...  
Keyword(s):  
Spectral Density ◽  
Density Function ◽  
Design Methodology ◽  
Light Trapping ◽  
Spectral Density Function ◽  
Particle Type ◽  
Bottom Up ◽  
Design Representation ◽  
Material Systems ◽  
Channel Type

Quasi-random nanostructures are playing an increasingly important role in developing advanced material systems with various functionalities. Current development of functional quasi-random nanostructured material systems (NMSs) mainly follows a sequential strategy without considering the fabrication conditions in nanostructure optimization, which limits the feasibility of the optimized design for large-scale, parallel nanomanufacturing using bottom-up processes. We propose a novel design methodology for designing isotropic quasi-random NMSs that employs spectral density function (SDF) to concurrently optimize the nanostructure and design the corresponding nanomanufacturing conditions of a bottom-up process. Alternative to the well-known correlation functions for characterizing the structural correlation of NMSs, the SDF provides a convenient and informative design representation that maps processing–structure relation to enable fast explorations of optimal fabricable nanostructures and to exploit the stochastic nature of manufacturing processes. In this paper, we first introduce the SDF as a nondeterministic design representation for quasi-random NMSs, as an alternative to the two-point correlation function. Efficient reconstruction methods for quasi-random NMSs are developed for handling different morphologies, such as the channel-type and particle-type, in simulation-based microstructural design. The SDF-based computational design methodology is illustrated by the optimization of quasi-random light-trapping nanostructures in thin-film solar cells for both channel-type and particle-type NMSs. Finally, the concurrent design strategy is employed to optimize the quasi-random light-trapping structure manufactured via scalable wrinkle nanolithography process.

Framework of Conceptual Design Methodology for Hybrid Buoyant Aircraft

2016 ◽  
Vol 95 (2) ◽  
pp. 99-110 ◽  
Author(s):  
Anwar Ul Haque ◽  
Waqar Asrar ◽  
Ashraf A. Omar ◽  
Erwin Sulaeman ◽  
Mohamed J. S. Ali
Keyword(s):  
Conceptual Design ◽  
Design Methodology

Influence of the principle of interoperability on legal regulation

2015 ◽  
Vol 57 (6) ◽  
pp. 562-572
Author(s):  
Anna Zharova
Keyword(s):  
European Union ◽  
Security Policy ◽  
Design Methodology ◽  
Legal Regulation ◽  
Public Institutions ◽  
Content Type ◽  
Legal Method ◽  
Legal Problems ◽  
Technical Specifications ◽  
The Eu

Purpose – The purpose of this paper is to identify the legal problems connected with using the systems of technological interoperability in the society. Design/methodology/approach – In the paper, the compared-legal method was applied. The legislation of Russia and that of European Union (EU) have been compared. Findings – Generalizing about the problems identified in both Russia and the EU, it is possible to conclude that: States have to develop a coordinated, uniform security policy. Public administrations have to implement interoperable services for business and citizens. States have to introduce the required standards. It is necessary to forbid development or creation of any departmental technical specifications by public institutions or departments which are not coordinated with the larger transnational goals. Originality/value – In the paper, the problems that arise in the states (Russia and EU) if they did not take into account the principle of interoperability are revealed. Legal mechanisms directed on permission of arising problems are described.

Knowledge absorptive capacity: do all its dimensions matter for export performance of SMEs?

2016 ◽  
Vol 12 (2) ◽  
Author(s):  
Godwin Mwesigye Ahimbisibwe ◽  
Stephen Korutaro Nkundabanyanga ◽  
Gideon Nkurunziza ◽  
David Nyamuyonjo
Keyword(s):  
Knowledge Acquisition ◽  
Absorptive Capacity ◽  
Design Methodology ◽  
Sampling Error ◽  
Export Performance ◽  
Hierarchical Regression ◽  
General Effect ◽  
Firm Level ◽  
External Knowledge ◽  
External Knowledge Acquisition

Purpose In this paper we aim to study the relationship between knowledge absorptive capacity (KAC) of exporting SMEs in Uganda and their export performance. Design/methodology/approach This study is correlational and cross-sectional, and adopts firm-level data collected via questionnaires from Ugandan exporting SMEs. As we use the sub-domains of KAC to predict export performance and therefore these sub-mains are expected to be correlated, we apply hierarchical regression as an appropriate tool for analysis when variance on a criterion variable is being explained by predictor variables that are correlated with each other (Pedhazur, 1997). Using this tool we analyze the effect of a given sub-domain after controlling for other indicators (sub-domains) of KAC; a “control” achieved by calculating the change in the adjusted R2 and the significance of this change. Findings We find that only external knowledge acquisition (a dimension of potential absorptive capacity) and external knowledge application (a dimension of realised absorptive capacity) are the only significant predictors of export performance in our model. Contrary to previous thinking, we find that external knowledge assimilation and transformation are not significant predictors of export performance. Taken together, our independent variables explain about 35.4 percent of the variance in export performance of SMEs in Uganda. Research limitations/implications The use of hierarchical regression is susceptible to problems associated with sampling error. However, the likelihood of these problems is reduced by our interaction with the data Practical implications – Our results imply that the initial focus of exporting SMEs should be on external knowledge acquisition and application. Originality/value Unlike most of the export performance literature, which have focused on the general effect of knowledge absorptive capacity as a global variable, this study explores the role played by the four dimensions of KAC and methodologically isolates the contribution played by each individual dimension in the context of exporting SMEs in a developing nation. As such we uncover the reality that not all the sub-domains of KAC are significant for export performance of SMEs in a developing country context.

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