An Immune Decision Making Strategy for Evaluation of Production Concept Design

2009 ◽  
Author(s):  
Chen Guangzhu
Keyword(s):  
Decision Making ◽  
Concept Design ◽  
Production Concept

Analysis of Mechanical Response for Subgrade of Tramcar with Monolithic Track-Bed

2013 ◽  
Vol 361-363 ◽  
pp. 1765-1771
Author(s):  
Chong Wei Huang ◽  
Shuo Wang ◽  
Xian Zhi Shao ◽  
Xian Zhao Du ◽  
Er Hao Su
Keyword(s):  
Decision Making ◽  
Mechanical Response ◽  
Three Dimensional ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
Track Structure ◽  
Concept Design ◽  
Theoretical Support ◽  
Design Basis ◽  
Nonlinear Finite Element Model

Based on the differences between the subgrade of tramcar with monolithic track-bed and the existing subgrade of railway, anew three-dimensional nonlinear finite element model is established in this paper. And then,the numerical analyses are conducted by considering weight load of track structure. The characteristics of mechanical response in the subgrade of tramcar with monolithic track-bed are found by finite analysis, which offers a reference for the future engineering, in terms of the design concept, design basis and theoretical support as well as the basis for decision making.

scholarly journals RANCANG BANGUN MESIN SENAI UNTUK ULIR M11

Infotekmesin ◽  
2019 ◽  
Vol 9 (02) ◽  
pp. 53-60
Author(s):  
Pujono Pujono ◽  
Istofa Rifqy Widya Fauzi
Keyword(s):  
Decision Making ◽  
Ball Bearing ◽  
Maximum Size ◽  
Design Decision ◽  
Concept Design ◽  
Motor Power ◽  
Initial Idea ◽  
Machine Elements ◽  
Designing Method ◽  
Real Machine

Bolting machine is a machine which is designed to conduct the making process of outside thread without rotating the handlebar of workpiece using hand manually, Therefore, the machine can help the processing in some industries which do not have qualified operators. The purpose of the designing and calculating of machine elements on senai machineis to create a design and make it in real product that can create outside thread with the maximum size of M11, to calculate parts of machine elements, i.e. axis diameter and sprocket chain and to create the real machine product. The designing method used follows these steps, i.e. problem identification, initial idea, improvement of the idea, analysis of design, decision making, and implementation. The result of the evaluation on concept design was the cutter holder on the chuck variable and themover shaft handle. The result of machine elements calculation showed that the electric motor power was 40 watt, shaft diameter was 25 mm with inside diameter of 16 mm, the bearing used was 6205 Ball Bearing, and the thread capacity was M11 metric thread.

Track 6.b Introduction

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Liv Merete Nielsen ◽  
Eva Lutnæs ◽  
Mia Porko-Hudd ◽  
Úrsula Bravo ◽  
Catalina Cortés ◽  
...  
Keyword(s):  
Decision Making ◽  
General Public ◽  
Design Education ◽  
Decision Makers ◽  
Concept Design ◽  
Policy Makers ◽  
Design Processes ◽  
Lay Persons ◽  
The Creation ◽  
Sustainable Societies

Norwegian research group Design Literacy at Oslo Metropolitan University (OsloMet) which is led by professor Liv Merete Nielsen has initiative to this paper track. The paper track was accompanied by a workshop. Design Literacy can be regarded as a catalyst for a move towards a better citizens participation in innovative design processes. By educating the general public to become design literate, there is a chance to support critical innovation and a possible move towards sustainable societies (Stegall, 2006). The challenge is to articulate content, performance and continuity for a critical decision-making process and how this influence critical innovation and design education at large. The concept ‘Design Literacy’ addresses the complex matter of objectives, content and practices in design processes and education. Research on multiple literacies has evoked considerable debate and redefinition within several areas of educational research (Coiro et al. 2008); the understanding of literacy is no longer bound to the ability to read and write verbal text or numeracy. Design Literacy (Nielsen and Brænne, 2013) are among newly coined literacies. Design Literacy is connected both to the creation and understanding of design innovation in a broad sense. In today’s mostly artificial world, the Design Literacy is regarded as a competence not only for the professional designer, but also for the general public in their position as citizens, consumers, users and decision makers in innovative processes. Designed artefacts and services influence our lives and values, both from personal and societal perspectives. Designers, decision makers and investors hold different positions in the design process, but they all make choices that will influence new innovations and our future. In order to solve crucial global challenges, designers and investors must cooperate; for this purpose, we argue that design literacy is necessary for all. We argue that the Design Literacies can support practices associated with innovation, democratic participation in design processes, developing and enacting ethical responsibilities, and understanding and supporting sustainable aspects of production and consumption. The track called for researchers to explore the following points: How development of Design Literacy can support critical innovation and sustainable issues Progressions in scaffolding Design Literacies from a pre-school to a university level The potential of Design Literacy to support collaborative and experimental approaches of projects between: investors/designers, general public/designers, children/designers How design education for the general public can represent both a foundation for professional design education and a prequalification for lay persons’ competence for decision-making and critical innovation How might Design Literacy influence sustainability issues in society? What are the challenges of professional design, when everyone wants to design? Research submnited for this track addressing the points above have been useful as a point of departure for the Design Literacy workshop and the creation of the Design Literacy International network. The papers have also been useful for the promotion of critical innovation and to inform policy and for educational implementation. The importance lies in the needs to better inform design education itself, to improve the approach of design educators, and to educate reflective citizens, policy makers, entrepreneurs and consumers in perspective of critical innovation.

Ship Structural Design Support Methodology for the Reliability Based Design Optimization (RBDO)

2014 ◽  
Author(s):  
Vedran Žanić ◽  
Karlo Pirić ◽  
Pero Prebeg
Keyword(s):  
Decision Making ◽  
Design Optimization ◽  
Structural Design ◽  
Design Problem ◽  
Design Criteria ◽  
Concept Design ◽  
Reliability Based Design Optimization ◽  
Design Support ◽  
Reliability Based Design ◽  
Related Design

The objective of the paper is to present the structural design support system (DeSS) rationale for the reliability based design optimization (RBDO) in the concept design phase. Basic steps are as follows: • Interactive identification of the design problem (design variables, constraints, objectives) as well as design problem variates and their distribution parameters. Safety related design criteria are used as objectives and as constraints in the presented procedure; • Calculation of the cross section ultimate longitudinal strength criteria based on the extended Smith’s method; based on the Report SSC-398; • Selection of non-dominated designs (Pareto-optimal, NDD points) for the given deterministic design criteria; • Calculation of reliability/deterministic safety measures. Novel FASTREL code, based on the Dimension Reduction Method (DRM) is used for the reliability calculations; • Generation of insight into the Multi Attribute Decision Making (MADM) process with 5D graphic presentation of designs in design and attribute spaces in the interactive OCTOPUS Designer (Demak/DeView) IT modules. Practical application of the developed concept design methodology and of the design environment to the structural design of the verifiable test example corresponding to SSC-398 report. DeSS was used in fast generation of optimal designs using MODM (MOSLP) and MADM (MOPSO) techniques. To speed up the RBDO design process deterministic and probabilistic formulations of design problem were run concurrently and supporting each other are presented using the safety related design attributes (deterministic and reliability based) for the NDD supported decision-making technique.

A Relative Equilibrium Decision Approach for Concept Design Through Fuzzy Cooperative Game Theory

2019 ◽  
Vol 19 (4) ◽  
Author(s):  
Liting Jing ◽  
Zhi Li ◽  
Xiang Peng ◽  
Jiquan Li ◽  
Shaofei Jiang
Keyword(s):  
Decision Making ◽  
Cooperative Game ◽  
Relative Equilibrium ◽  
Fuzzy Decision Making ◽  
Game Model ◽  
Concept Design ◽  
Fuzzy Decision ◽  
Technical Performance ◽  
The Impact ◽  
Cooperative Game Model

In the early stages of the product design, multiple principle solutions are obtained through function solving, and a large number of conceptual schemes are generated by combination. Therefore, scheme decisions are important factors in the concept design. The existing decision methods primarily focus on the satisfaction of economic needs, and the impact of technical indicators on the technical performance of the scheme, while ignoring the conflict of needs between the two subject objectives in the decision process. Actual decisions need to be weighed against each other’s expectations. In addition, the qualitative interactive objectives will affect the decision direction of the conceptual scheme. Herein, we propose a relative equilibrium decision approach for concept design based on the fuzzy decision-making trial and evaluation laboratory-cooperative game model. This model is primarily divided into two parts. One is to solve the impact relationship between the objectives, and the objectives’ weights are obtained through fuzzy decision-making trial and evaluation laboratory (FDEMATEL). The second is to incorporate the objectives’ weights and impact utility into the cooperative game model, to reasonably weigh the relative interests of the two subjects to meet the corresponding interactions, and to obtain the scheme with the largest overall design desirability. Finally, the case study proves that this decision model can identify the optimal scheme. This model is proven to be robust by comparison with other methods.

scholarly journals An Integrated Decision Making Model for Evaluation of Concept Design

10.14311/582 ◽  
2004 ◽  
Vol 44 (3) ◽  
Author(s):  
G. Green ◽  
G. Mamtani
Keyword(s):  
Decision Making ◽  
Life Cycle Cost ◽  
Product Life Cycle ◽  
Evaluation Process ◽  
Design Evaluation ◽  
Concept Design ◽  
Design Concepts ◽  
Integrated Decision Making ◽  
Aid Decision ◽  
Decision Making Model

The Conceptual design phase generates various design concepts and these are then evaluated in order to identify the 'Best’ concept. Identifying the Best concept is important because much of the product life cycle cost is decided in this phase. Various evaluation techniques are performed so as to aid decision-making. Different criteria are weighted against concepts for the comparison. This paper describes the research being carried out at the University of Glasgow on design evaluation. It presents the Application of fuzzy logic for design evaluation and proposes an integrated decision-making model for design evaluation. This is a part of research project that aims at developing a computer tool for evaluation process to aid decision-making.

scholarly journals Conceptual Design Evaluation Considering Confidence Based on Z-AHP-TOPSIS Method

2021 ◽  
Vol 11 (16) ◽  
pp. 7400
Author(s):  
Qinghua Liu ◽  
Jiadui Chen ◽  
Weixing Wang ◽  
Qing Qin
Keyword(s):  
Decision Making ◽  
Conceptual Design ◽  
Evaluation Method ◽  
Evaluation Criteria ◽  
Design Evaluation ◽  
Design Decision ◽  
Concept Design ◽  
Customer Requirements ◽  
Factors Affecting ◽  
Design Scheme

In concept design, effective decision making and management of schemes can shorten the design cycle and improve product quality. The decision maker (DM)’s confidence is one of the critical factors affecting the conceptual design evaluation. Although many studies use quantitative linguistic evaluation for design scheme decision-making, which improves product conceptual design decision-making efficiency and effectiveness, few studies consider the confidence level of a decision. A conceptual design evaluation method based on Z-numbers is proposed to solve this problem, considering the customer requirements and the DM’s confidence. Firstly, the evaluation criteria are determined by analyzing customer requirements; then, the fuzzy analytic hierarchy process in the Z-numbers environment (Z-AHP) is used to determine the criteria weight; Finally, the fuzzy technique for order preference by similarity to ideal solution method in the Z-numbers environment (Z-TOPSIS) is used to evaluate the design schemes to obtain the optimal scheme. The proposed method is applied to the selection of the design scheme of the waste containers in the kitchen. The results show that considering the DM’s self-confidence can achieve a more reasonable and practical evaluation of the conceptual design scheme, and it is easier to obtain the best scheme.

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