• 제목/요약/키워드: Layout Analysis

검색결과 942건 처리시간 0.026초

피라미드 형태 적재장에서 적재동의 개수와 적재동의 저장 공간 배치 (Determining the Number of Storage Rooms and the Layout of the Storage Room in Warehouses for Pyramid-typed Stacks)

  • 박퇴경;김갑환
    • 한국경영과학회지
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    • 제32권2호
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    • pp.1-15
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    • 2007
  • This paper proposes a method for determining the number of storage rooms and designing the storage layout in warehouses for pyramid type stacks whose example are slacks for steel coils, paper rolls, and drums for oils. Formulas are derived for estimating the expected values and the variances of various handling times by cranes. From the derived formulas, the expected queuing time of road trucks is estimated. Base on the derived formulas, this study derives the cost function for determining the optimal numbers of rows, bays, and tiers of stacks and sizing cranes under the condition that the requirement for storage space is satisfied. Results of numerical analysis are provided.

Development of the Multi Stage Type Die for Thin Sheet Metal Working

  • Sim, Sung-Bo;Park, Sun-Kyu;Lee, Sng-Hoon
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 2001년도 추계학술대회(한국공작기계학회)
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    • pp.190-195
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    • 2001
  • The piercing and blanking of thin sheet metal working is specified division in press die design and making. In order to prevent the defects, 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 it's phenomena, die structure, machine tool working for die making, die materials and it's heat treatment, metal working in field, their know how etc. are included in those factors. 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.

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Modification on Movable Storage Furniture by Non-specialist - In the KYUDOGAKUSHA Housing Renovation -

  • YI, Yongkyu;TAKADA, Mitsuo
    • Architectural research
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    • 제10권2호
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    • pp.1-10
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    • 2008
  • The study is to find possibilities and problems of a small-scale modification on movable storage furniture as an answer to the residents' needs. The study selected one of the renovated housing units at "KYUDOGAKUSHA" as a case study. "KYUDOGAKUSHA" was designed by architect Takeda Goichi in 1926 and was renovated in 2006. The study investigates major two aspects of movable storage furniture, which includes the furniture's layout planning and technical issues of assembling and moving moveable storage furniture. The experimental test result shows that, 1) It is clear that island type of movable storage furniture's layout can facilitate the residents'small-scale modification even though the residents are untrained. 2) To increase the assembling efficiency, the study found that it is necessary to improve the movable storage furniture's casters so that furniture can rotate. Certain moveable furniture which played a role as a connector between other furniture pieces was not able to move vertically and caused a load on other connected furniture; this needed an improvement.

일본 학교 사례의 저층부 배치 시설 및 공간 특성 연구 (A Study on the facilities layout of lower floor and space characteristic of newly established schools cases in Japan)

  • 강혜진;정진주
    • 한국농촌건축학회논문집
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    • 제17권1호
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    • pp.27-34
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    • 2015
  • Our school management is changing by soft and self-regulating method from single educational system. Especially, 7th educational curriculum demands change of educational system and operation that correspond spontaneously on various needs of students. Like this, changing educational policy and curriculum accompany change of social awareness, curriculum, and school space should be changed corresponding hereupon. Such our change can say that is appearing fairly similarly, when compare in Japanese educational policy, curriculum, side of change of school space. Because it is resulting from partial accepting of educational curriculum, system, school architecture and space of Japan. In such background, I investigates Japanese schools cases that advanced than us, which is been opened within the latest 6 years. Through this analysis, I find space and function that can apply to our school. And I will propose some basic data needed for educational and architectural planning side.

공동주택의 물리적 형태와 밀도의 상관성 연구 (A Study on the Inter-Relationships between Physical Form and Density of Multi-Family Housing)

  • 최무현;최주영;양정필
    • 한국주거학회논문집
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    • 제17권1호
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    • pp.67-75
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    • 2006
  • Multi-family housings caused several problems related to physical form such as isolation of housing estate, inhumanity of the exterior space, and mismatch with the urban structure. To handle these problems, the purpose of this study is to analyse density elements which have a direct impact on physical forms, thereby understand the characteristics of physical form and also identify a meaning of inter-relationships between them. Therefore both formal constituents and density elements are reformed into respective analyzing indices. From the analysis, physical form and the spatial layout of buildings were more uniform in large-scale housing estates than in medium or small housing estates. However, small-scale housing estates showed various form and the spatial layout of buildings in order to increase the building density.

Development of the Practical and Adaptive Die of Fixed Stripper Type for Marine Part Sheet Metal Working(part 2)

  • Sim, Sung-Bo;Song, Young-Seok;Sung, Yul-Min
    • 한국해양공학회:학술대회논문집
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    • 한국해양공학회 2000년도 춘계학술대회 논문집
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    • pp.146-150
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    • 2000
  • In order to prevent the defects, 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 it's phenomena, die structure, machine tool working for die making, die materials and it's heat treatment, metal working in field, their know how etc. are included in those factors. 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. Part2 of this study reveals with ultra precision progressive die design, its making and tryout.

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고속 3차원 패턴가공기의 설계 및 제작에 관한 연구 (Design and Manufacturing of a 3D Pattern Mill)

  • 김의중;최진경;한성종;주상율;최성원
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2000년도 추계학술대회 논문집
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    • pp.220-223
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    • 2000
  • In this study for the development of a 3D pattern mill, we designed its layout which has high stiffness and low-weight structure. We calculated the load of each axis component when 3D pattern mill is under the worst cutting conditions. On base of the calculations, we determined the size of its structure and selected main components of the machine. Also, using FEM we analyzed the layout design of 3D pattern mill to reduce the wcight of structure and increase stiffness of it. According to the load position and direction, shapes and values of the deformation and the stress distributions are calculated, also we calculated the natural frequencies and mode shapes in order ta modify and redesign the weak parts

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Y-채널 마이크로믹서의 혼합 증대에 관한 연구 (Study on Mixing Enhancement of a Y-channel Micromixer with Obstacles)

  • 최장욱;최형일;이동호;이도형
    • 대한기계학회논문집B
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    • 제29권12호
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    • pp.1369-1376
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    • 2005
  • Effective mixing gives strong advantageous impact on microfluidic applications since mixing is in general very slow process motivated by molecular diffusion transport only on the micro-scale. In this work, the mixing characteristics are analyzed in a Y-channel micromixer with obstacles. For the through analysis, our laboratory in-house unstructured grid CFD code is validated through solving a concentration transport in a uniform microchannel. The solutions well correspond to both exact solutions and those from MemCFD. Mixing in a Y-channel micromixer with obstacles is numerically investigated by the in-house code to search the optimal radius and layout of obstacles. From the simulations, the mixing efficiency appears to be proportional to the magnitude of the formation of lateral velocity component. It is also shown that the asymmetric layout and radius enlargement of obstacles greatly improves mixing efficiency.

이차원 공동의 구조기인소음 저감을 위한 제진재의 최적배치 (Damping Layout Optimization to Reduce Structure-borne Noises in a Two-Dimensional Cavity)

  • 이두호
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2006년도 정기 학술대회 논문집
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    • pp.805-812
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    • 2006
  • An optimization formulation is proposed to minimize sound pressures in a two-dimensional cavity by controlling the attachment area of unconstrained damping materials. For the analysis of structural-acoustic systems, a hybrid approach that uses finite elements for structures and boundary elements for cavity is adopted. Four-parameter fractional derivative model is used to accurately represent dynamic characteristics oJ the viscoelastic materials with frequency and temperature. Optimal layouts of the unconstrained damping layer on structural wall of cavity are identified according to temperatures and the amount of damping material by using a numerical search algorithm.

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Development of the Practical and Adaptive Three Steps Die for Sheet Metal Working (part 2) (Die Design, Making and Tryout)

  • Sim, Sung-Bo;Song, Young-Seok;Sung, Yul-Min
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 2000년도 춘계학술대회논문집 - 한국공작기계학회
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    • pp.229-233
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    • 2000
  • In order to prevent the defects, 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 it's phenomena, die structure, machine tool working for die making, die materials and it's heat treatment, metal working in field, their know how etc. are included in those factors. 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. Part2 of this study reveals with ultra precision progressive die design, its making and tryout.

  • PDF