• Title/Summary/Keyword: Axiomatic method

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Design of Spiral Spring in Sliding Mechanism for Mobile Phones Using Axiomatic Design (공리적설계를 이용한 휴대폰 슬라이드 기구의 스파이럴 스프링 설계)

  • Hwang, Eun-Ha;Han, Deok-Hee
    • Journal of the Korean Society of Industry Convergence
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    • v.10 no.3
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    • pp.171-177
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    • 2007
  • It is well known that mobile phones have been a indispensable communication tool for human life. The spiral springs are used as the main component of the semi-auto sliding mechanism of mobile phones. The characteristic of axiomatic approach is scientific and analytical method, and axiomatic approach is different from other design methods in offering the systematic method at an early stage of design. The axiomatic approach could determine design parameter and arrange the order of design and estimate the optimum design in good order. In axiomatic approach, the composition is divided by customer requirement, functional requirement, design parameter, and design matrix in large portion. This paper presents design in sliding mechanism for mobile phones by finite element method and axiomatic design.

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Zermelo and the Axiomatic Method (제르멜로와 공리적 방법)

  • Park, Woo-Suk
    • Korean Journal of Logic
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    • v.11 no.2
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    • pp.1-56
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    • 2008
  • This article intends to examine the widespread assumption, which has been uncritically accepted, that Zermelo simply adopted Hilbert's axiomatic method in his axiomatization of set theory. What is essential in that shared axiomatic method? And, exactly when was it established? By philosophical reflection on these questions, we are to uncover how Zermelo's thought and Hilbert's thought on the axiomatic method were developed interacting each other. As a consequence, we will note the possibility that Zermelo, in his early as well as late thought, had views about the axiomatic method entirely different from that of Hilbert. Such a result must have far-reaching implications to the history of set theory and the axiomatic method, thereby to the philosophy of mathematics in general.

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Bernays and the Axiomatic Method (베르나이스와 공리적 방법)

  • Park, Woo-Suk
    • Korean Journal of Logic
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    • v.14 no.2
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    • pp.1-38
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    • 2011
  • Bernays has not drawn scholarly attention that he deserves. Only quite recently, the reevaluation of his philosophy, including the projects of editing, translating, and reissuing his writings, has just started. As a part of this renaissance of Bernays studies, this article tries to distinguish carefully between Hilbert's and Bernays' views regarding the axiomatic method. We shall highlight the fact that Hilbert was so proud of his own axiomatic method on textual evidence. Bernays' estimation of the place of Hilbert's achievements in the history of the axiomatic method will be scrutinized. Encouraged by the fact that there are big differences between the early middle Bernays and the later Bernays in this matter, we shall contrast them vividly. The most salient difference between Hilbert and Bernays will shown to be found in the problem of the uniformity of the axiomatic method. In the same vein, we will discuss the later Bernays' criticism of Carnap, for Carnap's project of philosophy of science in the late 1950's seems to be a continuation and an extension of Hilbert's faith in the uniformity of the axiomatic method.

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Development of New Concept Headset using Axiomatic Approach (공리적 접근을 이용한 신개념 헤드셋의 개발)

  • Hwang, Yun-Dong;Cha, Sung-Woon
    • Proceedings of the KSME Conference
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    • 2001.06c
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    • pp.426-431
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    • 2001
  • When we use various multimedia programs such as 3D-game, visual conference, dial-pad phone by internet service, we make use of headset generally. As internet system is magnified more and more, a demand of headset will be increasing continuously. Because microphone was fixed by headset, it has many inconveniences for using headset. For these reasons, new concept headset is needed nowadays. Main idea of development of headset is very the automatic operation system of microphone. There are many process variables in appling new technology to the conventional headset. They can be solved by using axiomatic approach method which is very useful design method for designing new products. Its main character is scientific and analytical. The goal of this research is to design and manufacture a new headset model with axiomatic design method. In this paper, a new concept headset was presented by mapping the relation between functional requirements and design parameters.

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Investigation on the cold start characteristics of PEMFC using Axiomatic Design approach (Axiomatic Design 기법을 이용한 연료전지 냉시동 특성 개선에 관한 연구)

  • Suh, Jung-Do;Lee, Sung-Ho;Ahn, Byung-Ki;Lim, Tae-Won;Yu, Ha-Na;Lee, Dai-Gil
    • 한국신재생에너지학회:학술대회논문집
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    • 2008.10a
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    • pp.17-20
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    • 2008
  • Cold start of a fuel cell system is a major obstacle should be overcome as to commercialize it, especially for passenger vehicle applications. However, the cold start characteristics is so complicated since it involves various phenomenon such as ice-blocking in GDL, ionic conductivity in membrane affected by water activity with phase change, heat transfer through components such as bipolarplates or endplates, electro-chemical reactions affected by circumferential temperature and humidity as well. Axiomatic design provides a systematic method to investigate the complex phenomenon although it was developed as a methodology to establish logical design procedure by Nam P. Suh in 1990s. This paper presents a framework to approach the complex cold start problem using Axiomatic Design which features simplifying a problem through hierarchical decomposition and decoupling from the view of functional requirements and design parameters.

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Conceptual Design of a Beam Splitter for the Laser Marker Using Axiomatic Design and Triz (TRIZ를 도입한 공리적 설계방법에 의한 레이저 마커의 빔 분해기 개념설계)

  • 신광섭;박경진
    • Journal of the Korean Society for Precision Engineering
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    • v.21 no.5
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    • pp.166-173
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    • 2004
  • Axiomatic Design has been developed as a general design framework during past two decades and TRIZ has been developed for a design tool over 50 years. Axiomatic design is quite excellent in that the design should be decoupled. When a design matrix is established, the characteristics of the design are identified concerning the coupling properties. If the design is coupled, a decoupling process should be found. However, axiomatic design does not specifically indicate how to decouple. In this paper, a design method is developed to use TRIZ in the decoupling process. The decoupling ideas are extracted from the substance field analysis and various methods in TRIZ. The mettled is applied applied to the conceptual design of a beam splitter for the laser marker and the results are analyzed.

Axiomatic Approach for desing Appraisement and Development DVD (II) (DVD 설계평가 및 개선을 위한 공리적 접근 (II))

  • Moon, Yong-Rak;Cha, Sung-Woon;Heo, Bo-Seog
    • Journal of the Korean Society for Precision Engineering
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    • v.16 no.9
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    • pp.82-88
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    • 1999
  • In order to execute the major role as the high density large capacity data storage device, which is one of the major characteristics of DVD(Digital Versatile Disk), there must be a method to effectively absorb the external impact or internal vibration. The DVD which has been developed until now tries to control two different types of vibrations, using only one absorber. But this goes against the independence Axiom of Axiomatic Approach which makes the design to be coupled. And in fat most of the malfunctions occurring during DVD data input/output is due to impact or vibration. Therefore in this paper, the vibration absorption system and operation reliability of DVD will be evaluated with the Axiomatic Approach and plans and feasibility to design an improved vibration absorption system will be provided also based on the Axiomatic Approach.

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Evaluation Methodology Development of Disassembly Through Axiomatic Design (공리적 설계를 이용한 분해성 평가방법 개발)

  • Kim, Young-Kyu;Cho, Kyu-kab;Moon, Yong-rak;Cha, Sung-Woon
    • Journal of the Korean Society for Precision Engineering
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    • v.18 no.4
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    • pp.197-202
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    • 2001
  • This paper proposes a design method for improving the disassembly by using the axiomatic approach. A product developer must design disassembly as well as assembly when designing the structure of a product. Axiomatic approach is a design tool that optimizes design. In this paper design evaluation method using information axiom sets impact variables and value function. As a result, examining the relationship between the functional requirements and evaluating the information can optimize designs.

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A Structural Optimization Methodology Using the Independence Axiom (독립 공리를 이용한 구조 최적화 방법론 개발)

  • Lee, Gwang-Won;Park, Gyeong-Jin
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.24 no.10 s.181
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    • pp.2438-2450
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    • 2000
  • The Design Axioms provide a general framework for design methodologies. The axiomatic design framework has been successfully applied to various design tasks. However, the axiomatic design has been rarely utilized in the detailed design process of structures where the optimization technology is generally carried out. The relationship between the axiomatic design and the optimization is investigated and Logical Decomposition method is developed for a systematic structural optimization. The entire optimization process is decomposed to satisfy the Independence Axiom. In the decomposition process, design variables are grouped according to sensitivities. The sensitivities are evaluated by the Analysis of Variance(ANOVA) to avoid considering only local values. The developed method is verified through examples such as the twenty -five members transmission tower and the two -bay-six-story frame.

Developing Microcellular Foamed Vibration Isolator for DVD by Axiomatic Approach (공리적 접근을 이용한 DVD용 초미세 발포 방진재 개발)

  • Jeong, Pil-Jung;Cha, Seong-Un
    • Journal of the Korean Society for Precision Engineering
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    • v.17 no.12
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    • pp.101-106
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    • 2000
  • As the rotational speed of optical disk drive is increasing nowadays, the reliability to vibration and shock becomes more important. For this, various of rubber vibration isolators are being developed by varying the shape and hardness. But it is difficult for the hardness of common used rubber to be lowered below Duro 30 degrees, and because of the shape complexity of rubber vibration isolator there are difficulties of analysis. Microcellular foamed vibration isolator has various cell densities and cell sizes, so it can vary the stiffness and damping coefficient. In addition, its hardness can be lowered below Duro 30 degrees. Axiomatic Approach is very useful design method for designing new product or new process. Axiomatic Approach's character is scientific and analytical method. In this paper, developing process of microcellular foamed vibration isolator for DVD is presented with Axiomatic Approach.

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