• Title/Summary/Keyword: Redesign

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Redesign of Automobile Heater Blower Motor for Assemblability and Automation (자동차 송풍모터의 조립용이성과 자동화를 위한 재설계)

  • Mok, Hak-Soo;Cho, Jong-Rae
    • Journal of the Korean Society for Precision Engineering
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    • v.16 no.11
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    • pp.36-46
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    • 1999
  • This paper proposes a redesign procedure for assemblability and automatic assembly of an automobile heater blower motor. According to the procedure, redesign alternatives are generated, then the alternatives are evaluated by a weighted objectives method to select one optimal redesign alternative. First, the redesign objectives are identified and the assemblability of the current motor is evaluated to decide redesign rules. Finally, the redesign variants and alternatives are generated using the redesign criteria. This information is then evaluated to select an optimal alternative, determined by weighted evaluation criteria which is established in advance.

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Optimal Intelligent Digital Redesign for a Class of Fuzzy-Model-Based Controllers

  • Chang-wook;Joo, Young-hoon;Park, Jin-bae
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.1 no.1
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    • pp.113-118
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    • 2001
  • In this paper, we develop an optimal intelligent digital redesign method for a class of fuzzy-model-based controllers, effective for stabilization of continuous-time complex nonlinear systems. Takagi-Sugeno (TS) fuzzy model is used to extend the results of the classical digital redesign technique to complex nonlinear systems. Unlike the conventional intelligent digital redesign technique reported in the literature, the proposed method utilized the recently developed LMI optimization technique to obtain a digitally redesigned fuzzy-model-based controller. Precisely speaking, the intelligent digital redesign problem is converted to an equivalent optimization problem, and the LMI optimization method is used to find the digitally redesigned fuzzy-model-based controller. A numerical example is provided to evaluate the feasibility of the proposed approach.

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Jeungsan Thoughts and DMZ World Eco-peace Park - Universal Redesign for the Foremost Leading Country centering on Korea - (증산사상과 DMZ 세계생태평화공원 - 한반도 상등국 천지공사를 중심으로 -)

  • Kim, Jeong-wan
    • Journal of the Daesoon Academy of Sciences
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    • v.24_1
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    • pp.97-144
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    • 2014
  • Jeungsan(甑山) carried out the Universal Redesign(天地公事) through which the former world full of a mutual opposition(相克) can be peacefully transferred into the latter world composed of a mutual beneficence(相生). Although the Universal Redesign consists of such three factors heaven, earth, and human, it converges towards Human Redesign in that humans are the main agents for heaven and earth. Human as Redesign object is characterized as a member of community, not an anarchistic individual. The Universal Resign of Jeungsan is eventually connected with the construction of a country comprising a mutual beneficence in that it is the most typical strain among all the human communities. His Universal Resign for foundering the foremost country does not target all the countries, but only one country upon and through which the world with a mutual beneficence can be formed. He executed the Universal Redesign based on such three principles as Haewon sangsaeng(解冤相生), Boeunsangsaeng(報恩相生), and Wonsibanbon(原始返本), Judging from such principles, Korea can be naturally selected as the target of the Universal Redesign for constructing the foremost country. It is approaching when the Universal Redesign in order to transform Korea into the foremost country comes true. The first step for Korea to be made as the foremost country is the construction of DMZ World Peace Park (DWPP) which was proposed by Bak Geunhye, the Korean President, to Obama, the President of USA, in 2013 she visited there. DWPP can be expected to be a center for corporation and interchange between South and North Korea under the interest and support of the world including UN, furthermore, the Capital area of reunified Korea, and finally the world hub of inter national political and economic relation. DWPP is planned to be built at the core of the best place in Korea which is a propitious spot all over the world, upon which a new world capitalism order armed with mutual beneficence can spread.

Automation of Assembly System in Make-To-Order (다품종 주문생산 방식의 조립시스템 자동화에 관한 연구)

  • Mok, Hak-Soo;Moon, Kwang-Sup;Shin, Hyun-Chang;Pyo, Seung-Tae
    • Journal of Korean Institute of Industrial Engineers
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    • v.27 no.1
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    • pp.103-110
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    • 2001
  • The aim of this paper is the implementation of high assembly productivity through product redesign. The product and process are analyzed by influencing factors for based data of the product redesign. And then, the weak assembly processes are analyzed by weak influencing factors. By this information about product and process, the score of weakness of influencing factors extracts the redesign rules and principles. The sequences of processes are changed according to the product redesign, and they are evaluated using the line efficiency and smoothness index.

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Performance Analysis of Urban Railway Rolling Stock Condition-based Maintenance Process Redesign Applying Mobile-IoT (모바일 사물인터넷을 적용한 도시철도 차량 상태기반 유지보수 프로세스 재 설계안 성과 분석)

  • Hyun-Soo Han;Kyoung-Soo Seo;Tae-Wook Kang
    • Journal of Information Technology Applications and Management
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    • v.29 no.6
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    • pp.63-80
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    • 2022
  • In this paper, we study structural changes and performance gains in condition-based maintenance process redesign when mobile IoT technology is embedded into urban railway rolling stock. We first develop condition-based maintenance To-Be process model in accordance with the IoT deployment scheme. Secondly, we draw upon theoretical framework of redesign process analysis to develop performance evaluation method suitable to predictive maintenance shift from As-Is ordinary maintenance practice. Subsequently, To-Be process performance evaluations are conducted adopting both the quantitative and qualitative method for time, cost, and dependability dimensions. The results ascertain the considerable benefits captured through detection abnormality prior to actual rolling stock failure occurrence, and details of performance improvements and enhancement of standardization level is revealed. The procedures and results presented in this paper offers useful insights in the fields of IoT economic analysis, condition based maintenance, and business process redesign.

A Study on Alessandro Mendini's Idea of Redesign with Special Reference to His 'Proust' armchair (알레산드로 멘디니(Alessandro Mendini)이 재디자인(Redesign)연구)

  • 김혜자
    • Korean Institute of Interior Design Journal
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    • no.14
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    • pp.107-113
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    • 1998
  • This stud tires to present a general picture about Alessandro Mendini's unique idea of redesign. One of Italian post-war redical architect and designer mendini gives us a special opportunity to appreciate the social cultural and political context where the post-war Italian design lies. Also known as "banal design" Mendin's design revolutionized the way in which we practice utilize and think about design itself. It is my opinion that the idea of his redesign can be best understood when we consider the social contest of Italian design. Unlike that of other European countries post-war Italian design gave special emphasis on how design can or should be more than a simple activity of making aesthetic or industrial products. In terms of these possibilities Mendini was never optimistic : today we are completely controlled by dehumanized mass production and it is impossible for design to take a special role for a social change Then Mendini's pessimism is bound up with the spirit of this age widely known as postmodernism. Even though Mendini himself never characterized his design as postmodern it is not difficult to identify various postmodern elements in his idea and practice of redesign. Thus in the final section of this study I shall investigate the postmodern elements in this design and furthermore such an idea as what makes Mendini postmodern.

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Improving a Digital Redesign for Time-Varying Trackers (시변 추종제어기를 위한 디지털 재설계의 개선)

  • Song, Hyun-Seok;Lee, Ho-Jae;Kim, Do-Wan
    • Journal of Institute of Control, Robotics and Systems
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    • v.17 no.4
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    • pp.289-294
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    • 2011
  • Digital redesign is yet another efficient tool to convert a pre-designed analog controller into a sampled-data one to maintain the analog closed-loop performance in the sense of state matching. A rising difficulty in developing a digital redesign technique for trackers with time-varying references is the unavailability of a closed-form discrete-time model of a system, even if it is linear time-invariant. A way to resolve this is to approximate the time-varying reference as a piecewise constant one, which deteriorates the state matching performance. Another remedy may be to decrease a sampling period, which however could numerically destabilize the optimization-based digital redesign condition. In this paper, we develop a digital redesign condition for time-varying trackers by approximating the time-varying reference through a triangular hold and by introducing delta-operated discrete-time models. It is shown that the digitally redesigned sampled-data tracker recovers the performance of the pre-designed analog tracker under a fast sampling limit. Simulation results on the formation flying of satellites convincingly show the effectiveness of the development.

A Case Study on Re:Design Collaboration for Sustainable Fashion Industry Revitalization (지속가능한 패션산업활성화를 위한 리디자인 협업 사례분석)

  • Kim, Minji;Lee, Kyujin
    • Journal of Fashion Business
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    • v.26 no.4
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    • pp.136-153
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    • 2022
  • The fashion industry is considered hazardous and a threatened to the environment. Due the negative perception, the industry should focus on sustainability as a social role. Therefore, several redesign fashion collaborations mainly focusing on renewing abandoned resources are already in place. The research method was based on previous studies, and 3 characteristics were derived: Redesign collaboration between fashion companies, Redesign collaboration between fashion & heterogeneous industries, and Redesign collaboration between the fashion industry & non-profit organizations. Those 3 characteristics were reviewed using 4 criteria. First, to establish and maximize the sustainable brand image and to be the best examples in environmental management, the organization endeavors to collaborate with various industries, institutions, and designers. Second is the expansion of the customer network through the spread of value consumption. Third is the creation of new values through a resource circulation structure. This means that the resource circulation structure system helps the partners to minimize on wastage. Fourth is the spread of de-boundary lines and the possibility of brand growth. Through collaboration with other industries, the boundaries of materials used in the fashion industry started to blur, thus expanding the continuous brand growth potential. The study derived the characteristics of redesign collaboration by systematically analyzing the cases. Further, the study looks forward to analyzing the characteristics of the products processed by redesign fashion collaborations in future research.

Intelligent Digital Redesign of a Fuzzy-Model-Based Controllers for Nonlinear Systems with Uncertainties (불확실성을 갖는 비선형 시스템을 위한 퍼지 모델 기반 제어기의 지능형 디지털 재설계)

  • Jang Kwon-Kyu;Kwon Oh-Shin;Joo Young-Hoon
    • Journal of Institute of Control, Robotics and Systems
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    • v.12 no.3
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    • pp.227-232
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    • 2006
  • In this paper, we propose a systematic method for intelligent digital redesign of a fuzzy-model-based controller for continuous-time nonlinear system which may also contain system uncertainties. The continuous-time uncertain TS fuzzy model is first contructed to represent the uncertain nonlinear system. A parallel distributed compensation(PDC) technique is then used to design a fuzzy-model-based controller for both stabilization. The designed continuous-time controller is then converted to an equivalent discrete-time controller by using a globally intelligent digital redesign method. This new technique is designed by a global matching of state variables between analog control system and digital control system. This new design technique provides a systematic and effective framework for integration of the fuzzy-model-based control theory and the advanced digital redesign technique for nonlinear systems with uncertainties. Finally, Chaotic Lorenz system is used as an illustrative example to show the effectiveness and the feasibility of the developed design method.

Delta-Operator-Based Digital Redesign of Linear Time-Invariant Systems

  • Lee, Ho-Jae;Park, Jin-Bae;Lee, Yeun-Woo;Joo, Young-Hoon
    • 제어로봇시스템학회:학술대회논문집
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    • 2004.08a
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    • pp.942-944
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    • 2004
  • This paper proposes a delta-operator-based digital redesign (DR) technique. An asymptotic property of the delta-operator-based DR is analyzed. The performance recovery is proved as a sampling time approaches zero.

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