• 대한안전경영과학회지
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• 제2권2호
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• pp.139-153
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• 2000

To develope a domestic machinery industry, international competition through reducing cost by increasing productivity is as important as evolving technology and increasing quality. In this study, we have studied in application of GT technology. GT is a skill that acquires high productivity using part's resemblance for multi part and small size production like mass production. We have classified group, such as design, layout and the others, to be applied systematically. The design group includes retrieval for drawings and study for GT design. The layout group includes GT layout, analysis of production process and study for composition method. And others include scheduling, standardization and standard process.

• 수산해양기술연구
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• 제44권4호
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• pp.353-361
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• 2008

Recently a modern style sailing boat suitable for Korean sea was designed through full three dimensional design skill by the authors. In this paper, based on this three dimensional hull and deck design, a production process of 31ft class cruiser sailing boat was developed. First of all, it was possible to make the digital mock-up for design boat. Through this mock-up and RP(rapid prototyping) modeling, an appropriate general arrangement of design boat was able to be determined at final. And also the female deck mould was able to be made by a 5-axis NC cutting machine. By doing this method, more higher efficiency and precision for sailing boat production could be achieved than before. Through this research the total process of design and construction for the designed boat was established.

• 한국공작기계학회논문집
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• 제16권1호
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• pp.92-97
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• 2007

This study was carried out to minimize the lifting force and to design the slim sized frame of a height adjustment mechanism. This unit is designed for the display devices in order to enhance the ergonomics for effective height adjustment as well as to achieve much slimmer frame for the pedestal. A tolerance analysis of 6 sigma was applied to achieve smooth lift at design stage not to change the tolerance specification of gap several times in a roller type of lifting mechanism at mass production stage. The specification of minimum gap and the target of production yield ratio were agreed with a quality team before tooling. A DFSS simulation on drawings had been done with reasonable tolerance and achievable standard deviation(${\sigma}$) several times until the target specification of gap and yield ratio was met. Once tolerance and deviation(${\sigma}$) were fixed tooling start was done successfully. A CAE method was applied to achieve a slim design. Design parameters were frozen when those parameters matched the reference strength data of standard model. Through those tolerance analysis and CAE simulation the number of tool modification was reduced and production yield ratio was raised up without arguing quality specification at production stage in the end.

• 한국CDE학회논문집
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• 제18권3호
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• pp.224-233
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• 2013

For the scheduling and the job assignment of the ship hull production design which is a process-based work, we suggest the simulation-based scheduling using the discrete-event-based business process simulation. First, we analyze the ship hull production design process from the perspective of a job assignment to make it into the simulation model using DEVS (Discrete Event System Specification) which is the representative modeling method for a discrete-event simulation. Based on the APIs of the open-source discrete-event simulation engine, we implement the simulation using the Groovy script. We develop the scenario generator in which the user defines detail information of the construction drawing and its member blocks, and design engineers information, and the various setting for the simulation including the job assignment strategy. We use the XML files from this scenario generator as inputs of simulation so that we can get simulation result in forms of Gantt chart without changes of the simulation model.

• Journal of Mechanical Science and Technology
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• 제14권6호
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• pp.655-665
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• 2000

We propose an efficient algorithm for the purpose of satisfying a wide range of design constraints represented with equality and inequality equations as well as production rules. The algorithm employs simulated-annealing and a production rule inference engine and works on design constraints represented with networks. The algorithm fulfills equality constraints through constraint satisfaction processes like variable elimination while taking into account inequality constraints and inferring production rules. It can also reduce the load of the optimization procedure if necessary. We demonstrate the implementation of the algorithm with the result on machine tool design.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2000년도 춘계학술대회 논문집
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• pp.35-39
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• 2000

The piercing and blanking of thin sheet metal working is specified division in press die design and making. In order to prevent the detects, the optimum design of the production part, strip process layout, die design, die making and try out etc. are necessary the analysis of effective factors. For example, theory and practice of metal shearing process and its phenomena, die structure, machine tool working for die making, die materials and its heat treatment, metal working in industrial and its know how etc. In this study, we analyzed whole of data base, theoretical back ground of metal working process, and then performed the progressive die tryout with the screw press. This study regards to the aim of small quantity of production parts press working. Part 1 of this study reveals with production part and strip process layout design.

• 한국기계가공학회지
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• 제6권1호
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• pp.71-77
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• 2007

In case of the welding process, a conventional production method of gate valve, it has a merit of light weight, but also a demerit of high production cost and an impossibility in mass production due to work by hand. However, in case of the forging process, it has economic merits and can take a mass production process, too. The main focus of this paper is the optimization of preform in the forging process. This paper proposed an optimal design to improve the mechanical efficiency of gate valve made by forging method instead of welding. the optional design is conducted as application of real response model to Kriging model using computer simulation. Also, from verification of the response model with optimized results we were confirmed that the applications of Kriging method to structural optimum design using finite element analysis and equation are useful and reliable.

• 패션비즈니스
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• 제6권5호
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• pp.96-111
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• 2002

The aim of this study was to suggest appropriate factors for production pattern making of women's clothing. Sample pattern designers and production patterners of 13 women's brands were individually interviewed about pattern making process and factors necessary. The results were as follows: The factors to be considered in pattern making were categorized in three groups. 1. Factors to be considered to achieve the correct use of specific materials: elasticity, shrinkage, lining and interlining 2. Factors to be considered to satisfy the design specifications: silhouette, dart distribution, collar and sleeve, trimming 3. Factors to be considered for better sewing quality: skillfulness of the sewer, sewing methods and sewing equipment. 4. Suggestions were made for appropriate factors. A focus-group-interview in pattern design has been interviewed to verify the suggested factors. The factors were presented as a guide to develop the production pattern. 5. For better usage of the factors, standardization were suggested for making process with necessary factors for jacket, skirt.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2009년도 춘계 종합학술대회 논문집
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• pp.993-997
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• 2009

모더니즘 시대의 디자인은 효율성과 기능성을 중심으로 사물과 기기의 표준화를 목표로 제작되었으며 생산보다 소비가 많았던 산업 시대에서 디자인 수용자의 의지는 소비의 대상으로서의 역할에 한정되어졌다. 그러나 포스트모더니즘 시대 이후 디지털 환경에서 디자인 수용자는 단지 주어진 것만을 수동적으로 수용하지 않고 적극적인 개입을 하고 능동적인 관리를 할 수 있도록 변화됨으로 디자인 수용과정에 우상화, 관여, 조율, 조작, 흉내 등의 전유행위를 수반하게 된다. 앞으로의 디자인은 전문가들만이 생성하고 관리하는 체계에서 벗어나 수용자들과 함께 협업하는 상황으로 변화되고, 수용자의 다양한 전유 형태는 디자인 생산물을 둘러싼 제작 방법, 배포 행위 등의 디자인 제반 환경을 변동시킬 것이다. 이에 디자인 수용자들의 전유 행위를 동일화, 해체화, 재의미화 등으로 구분하여 고찰함으로써 제작자와 수용자간의 원활한 인식을 통해 획일화, 구조화에 저항하는 수용자들의 문화 환경 변화를 읽어 효과적인 디자인 제작 행위를 유도하고자 한다.

• 디자인학연구
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• 제12권1호
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• pp.39-48
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• 1999

전통적 의미의 산업디자인은 산업혁명으로부터 시작된 기계적 생산양식에 그 바탕을 두고 있다. 그런데 최근 컴퓨터와 관련 기술들의 발달에 따른 새로운 매체들의 등장으로 전통적 의미의 디자인은 정체성의 혼란을 경험하고 있다. '사이버'라고 불리는 새로운 흐름은 산업혁명의 기계적 생산양식이 수공예적 생산양식의 여러 가정들을 파괴한 것처럼 기계적 생산양식의 가정들에 대해 의문을 제기하고 있는 것이다. 본 논문은 어떻게 컴퓨터, 그리고 가상실제와 같은 새로운 매체들의 등장이 삶의 환경과 생활 주체들의 감수성을 변화시키고, 또한 디자인의 모습을 변화시키는지에 대한 연구이다. 논문은 사이버공간과 문화, 이미지와 텍스트, 가상과 실재, 정체성 등의 논의를 통해 기계적 생산양식에 바탕을 둔 소재 중심적 경계 구분을 통해 기계적 생산양식에 바탕을 둔 소재 중심적 경계 구분을 해체하고 변화하는 시대의 디자인 지형과 정체성을 구체적으로 찾아 나서고 있다.