• Title/Summary/Keyword: axiomatic method

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Disassemblability Evaluation Method & Application using Axiomatic Approach (정보공리적 분해성 평가 방법과 적용)

  • Kim, Young-Kyu;Cho, Kyu-Kab;Cha, Sung-Woon;Jeong, Sang-Jin;Kweon, Sung-Woo
    • IE interfaces
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    • v.14 no.2
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    • pp.158-163
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    • 2001
  • The paper describes disassemblability evaluation method using axiomatic approach. In recent industry, it is necessary to develope high recyclable environmental product due to green consumer and environmental regulations. Disassembly stage is prior to recycling. Disaassembly time data is determined previously in order to calculate the disassembly segments and disassembly sequence. In this paper the evaluation method of disassembly segment/sequence and disassembly time database are suggested. A case study of monitor product was showed.

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Design of a Block Logistics Operating System in Shipbuilding Industry Based on Axiomatic Design (공리적 설계를 통한 조선 산업에서의 블록 물류 운영 시스템 설계)

  • Son, Jung-Ryoul;Ha, Byung-Hyun
    • The Journal of Society for e-Business Studies
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    • v.19 no.2
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    • pp.75-93
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    • 2014
  • We deal with the design of the effective block logistics operating system in shipyard. The block logistics operation is one of the critical managerial problems in shipbuilding. The block logistics operation in shipyard consists of storage operation for temporary storage in the limited storage area and transfer equipment operation of blocks from the given storage area to next process according to the block production schedule. We propose a design method of block logistics operating system based on the axiomatic design and IDEF0 method. As a result of axiomatic design, system functions are determined regarding implementation sequence. We validated the proposed design by implementation of a block logistics operating system for a large scale shipyard.

Technology Valuation Method Design Using Axiomatic Design (공리적 설계를 이용한 기술가치 평가방법의설계)

  • Mun Byeong Geun;Jo Gyu Gap
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2003.05a
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    • pp.605-608
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    • 2003
  • In order to satisfy the high need for technology valuation, various technology valuation methods have been developed. However the need to develop a new technology valuation method considering the technology characteristics, technology valuation objective, and technology valuation environments has been increasing. So far the technology valuation mehtods have been developed based on technology valuation experts' domain knowledge without applying systematic design methodology. In this paper the process that applies Axiomatic Design principles as a design methodology to the technology valuation methodology design is described. The design consists of technology valuation process design and technology valuation content design. The Axiomatic Design approach introduced in this paper can be used as a systematic technology valuation design tool considering various technology characteristics and technology valuation objectives and also as an evaluation tool of traditional technology methods.

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Designing of Stocker Robot's Fork Base using Axiomatic Design Method (설계의 공리를 적용한 Stocker Robot의 Fork Base설계)

  • Back, Tae-Jin;Paik, Cheol-Jun;Yoon, Jong-Bo;Moon, In-Ho
    • Journal of the Semiconductor & Display Technology
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    • v.10 no.1
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    • pp.75-81
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    • 2011
  • Today, FPD manufactures are eager to develop larger and larger glass to become the prime market leader. To follow this need, larger AMHS(Automated Material Handling System) development is essential. The radical increase of glass/cassette weight puts a lot of pressure on stocker robot's dual arms, which can cause a damage of expensive glasses and contaminate a clean room facility. In this paper the axiomatic design method is used to institute a design guideline to evenly distribute a pressure throughout the stocker robot structure.

Development of Evaluation Method for Performance of Weapon System using Axiomatic Design based Inner Dependence AHP (공리적설계 기반의 내부종속 AHP를 이용한 국방무기 해외 구매사업의 무기성능 평가방법 개발)

  • Cho, Hyunki;Kim, Woo-Je
    • Korean Management Science Review
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    • v.29 no.3
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    • pp.45-65
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    • 2012
  • Test and evaluation of weapon system is an important task to evaluate the performance of overseas weapon system purchasing project. Especially, quantitative evaluation of performances is hardly completed in defense projects where multiple criteria are conflicted each other. In order to solve this problem, we apply Axiomatic Design (AD) and Inner Dependence AHP method. First, finite functional requirements (FRs) are categorized in hierarchy structure by selecting proper design parameters (DPs) to implement their corresponding FRs. If there are no ways to select DPs when design is coupled between FRs and DPs, then inner dependence is allowed to overcome the strict rule of independence in AHP. Second, the weights of DPs are calculated by applying both Inner Dependence AHP method for coupled design and normal AHP method for uncoupled or decoupled design. Finally, information axiom of AD is applied to the proposed weapon systems by calculating information contents for all parameters. Weapon system with minimum sum of information contents is considered as the best solution. The proposed method in this study should be used in multiple criteria decision making problems involving various conflicting criteria.

Methodology of Selecting FormFactor in the Early Design of Mobile Phone (휴대전화 초기설계에서의 형태인자 선정 방법론)

  • Lee, Kyung-Soo;Kim, Min-Soo;Cha, Sung-Woon
    • Journal of the Korean Society for Precision Engineering
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    • v.27 no.11
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    • pp.63-71
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    • 2010
  • FormFactors is one of the most critical design factors in early development of mobile phone, and proper selection of FormFactors is necessary for smoothness of product development and customer satisfaction. Especially, emergence of mobile convergence added so various functions besides its original call function that importance of selecting FormFactors has increased because multiform FormFactors are needed. However there is problem such as frequent change of decision making in existing process because established process picks out FormFactors sensibly and arbitrarily through idea pull and so forth. We proposed FormFactors selection process by Axiomatic Design, set approach method and block approach method for reasonable and systematical FormFactors selection. First of all, we set the purpose of mobile phone development, and it is examined by Axiomatic Design. FormFactors design matrix is deduced through this process, the numbers of axes and rails are proposed using set approach method, and then patterns of FormFactors are embodied by block approach method. Particularly process application was tried through case study of mobile phone development, and we ensured that new FormFactors can be presented to a designer by systematical verification if change of customer requirements occurs through our process.

Design Evaluation of WEDM Based on Deformation Analyses and Axiomatic Design (변형해석 및 공리적 설계에 의한 와이어 방전가공기의 설계평가)

  • Lee, Hyeong-Il;U, Sang-U;Kim, Ju-Won;Kim, Chung-Yeon
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.26 no.5
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    • pp.851-863
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    • 2002
  • Recent industrial requirements for highly precise shape processing have brought the electric discharge machining (EDM) in great need. High precision in EDM is primarily achieved by high performance controllers. However there exists inherent precision loss due to structural micro-deformation. On this background, we study structural deformation characteristics of wire cut EDM via finite element (FE) analysis and axiomatic design. Two different wire cut EDMs are selected as analysis models. 3D CAD package I-Deas is first used to construct FE models of wire cut EDMs, and then ABAQUS FE code is used for following structural analysis. Pertinency of FE mesh refinement is discussed in terms of η -factor. It is shown that performance accuracy of EDM depends strongly on the structural characteristics. Some design enhancements are suggested in an axiomatic design point of view. Finally we provide weight and temperature induced displacement discrepancies between wire end points as position functions of each subframe.

Historical Analysis of Definition and Proof Conceptions in the Transition from Secondary to Tertiary Mathematics (학교수학과 대학수학에서 정의와 증명 개념 변화에 대한 수학사적 분석)

  • Lee, Ji-Hyun;Choi, Young-Gi
    • Journal of Educational Research in Mathematics
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    • v.21 no.1
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    • pp.57-65
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    • 2011
  • The conceptions of definition and proof radically change in the transition from secondary to tertiary mathematics. Specifically this paper analyses the historical development of the axiomatic method from Greek to modern mathematics. To understand Greek and modern axiomatic method, it is important to know the different characteristics of the primitive terms, constant and variable. Especially this matter of primitive terms explains the change of conceptions of definition, proof and mathematics. This historical analysis is useful for introducing the meaning of formal definition and proof.

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A New Information Index of Axiomatic Design for Robustness (강건성을 고려한 공리적 설계의 새로운 정보 지수)

  • Hwang, Kwang-Hyeon;Park, Gyung-Jin
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.26 no.10
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    • pp.2073-2081
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    • 2002
  • In product design and manufacturing, axiomatic design provides a systematic approach for the decision-making process. Two axioms have been defined such as the Independence Axiom and the Information Axiom. The Information Axiom states that the best design among those that satisfy the independence axiom is the one with the least information content. In other words, the best design is the one that has the highest probability of success. On the other hand, the Taguchi robust design is used in the two-step process; one is "reduce variability," and the other is "adjust the mean on the target." The two-step can be interpreted as a problem that has two FRs (functional requirements). Therefore, the Taguchi method should be used based on the satisfaction of the Independence Axiom. Common aspects exist between the Taguchi method and Axiomatic Design in that a robust design is induced. However, different characteristics are found as well. The Taguchi method does not have the design range, and the probability of success may not be enough to express robustness. Our purpose is to find the one that has the highest probability of success and the smallest variation. A new index is proposed to satisfy these conditions. The index is defined by multiplication of the robustness weight function and the probability density function. The robustness weight function has the maximum at the target value and zero at the boundary of the design range. The validity of the index is proved through various examples.gh various examples.

A study on the manufacturing systems design methodology (생산시스템의 설계 방법론에 관한 고찰)

  • 강무진;이기성;문홍일;김동주;장인성;김기태
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2002.05a
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    • pp.555-560
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    • 2002
  • This paper addresses the methodologies for manufacturing systems design. While a number of design methods are used in product or part design, methods for manufacturing systems design are rarely known. Two approaches, simulation and axiomatic design theory, are discussed with respective case examples. The usual purpose of using simulation is to identify the bottleneck of a manufacturing system or to evaluate its performance with the aim of configuring the manufacturing system. The simulation typically proceeds in steps such as problem definition, model building, numerical experimentation, analysis and evaluation. The axiomatic design method transforms customer attributes into functional requirements and repeats mapping processes between functional domain and physical one until a satisfactory level of refinement of the functional requirements and the design parameters is reached. Possible design alternatives are evaluated by applying the independence axiom as well as the information axiom.

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