• 제목/요약/키워드: Design Case Analysis

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배수관망(配水管網)의 간선배치(幹線配置)에 따른 정류(定流)흐름 해석(解析) (Analysis of Steady Flow by Main Pipe Arrangement in the Water Distributing Pipe Network)

  • 이중석;박노삼;김지학;최윤영;안승섭
    • 상하수도학회지
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    • 제13권3호
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    • pp.73-82
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    • 1999
  • In this study, the optimal analysis for pipe network is performed for the combined ideal pipe network system(CASE 1, CASE 2 and CASE 3) which is composed of 25 nodes, 41 elements, and 1 fixed nodal head with evaluating pressure variation distribution of main and branch in grid composed drainage pipe network. The linear analysis technique used as the analysis method in this study, the KYPIPE being used extensively as the linear technique to design and analysis of pipe network is applied. Firstly, in the analysis of pipe network, the CASE 2 and CASE 3 supply same thing(value) in the result of considering the total flow provided each pipeline, but in the general intension in the case of CASE 2, relative width of supply is more large than CASE 1 and CASE 3. Secondly, in the analysis technique of pipe network, CASE 3 is analysed largest as a result of comparing with same heads, and in the order of their size CASE 2 and CASE 1 were determined but the difference doesn't appear to be obvious. Thirdly, as the result of determining main factor, pressure in the design and analysis of net work. CASE 3 is from Node 3 to 25 than CASE 1 and CASE 2 and it is determined in the order of their size, CASE 2 and CASE 1. Finally, in this study, discharge flow distribution is evaluated in the same condition with 3-type CASE in the case of branch position for designing optimal composed drainage pipe network. As the result of that, branch pipe perform. Therefore, it is thought that the efficient and reasonable management of water supply and sewerage design will be possible if it give all our energies to study at the pipe system design in and out of country in the future.

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대화식 전문가 CAD S/W 개발을 위한 Case-Building 기법 연구 및 구현 (Development of case-building algorithm for interactive and expert CAD technology)

  • 류갑상;신중호
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1987년도 한국자동제어학술회의논문집; 한국과학기술대학, 충남; 16-17 Oct. 1987
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    • pp.273-276
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    • 1987
  • This paper presents a case-building algorithm which can control the design variables of which some variables are designated as the input (known) variables and the remainders are defined as the output (unknown) variables. The case-building algorithm can enhance the design ability by categorizing design case automatically. Common CAD programs for analysis and design of machine elements use a case-selection technique where a programmer set initially a few of design cases and users can only choose one of given cases. This paper also demonstrates the case-building algorithm by applying into CAD programs for power-screw design.

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건축정보모델링(BIM)기반 건축 환경 성능 사례 분석 (Case studies on BIM-based architectural environment performance analysis)

  • 문현준;최민석;박진우;유승호
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2009년도 하계학술발표대회 논문집
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    • pp.1412-1417
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    • 2009
  • BIM(Building Information Modeling) is considered a new paradigm and a powerful method in building design, construction and maintenance. However, it is still hard to implement environmental performance analysis using BIM in design stages. This study aims to reveal practical problems and evaluate interoperability between building design information and performance analysis with case studies. Three case studies are performed using two environmental analysis programs (IES/VE, EnergyPlus) and BIM-based architectural design programs (Revit, GoogleSketchUp) in this paper.

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원형컵 드로잉의 성형해석에 의한 최적설계 (Optimal Design in cylindrical cup drawing by forming analysis)

  • 정완진;김종호
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2003년도 춘계학술대회논문집
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    • pp.393-396
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    • 2003
  • A systematic investigation for the process design in deep drawing is necessary to improve the quality of drawn cups. This study concentrates mainly on the influence of process design strategy on the product quality. Several types of process design were chosen from initial blank of 100mm in diameter to make final cup of 50mm in diameter. Forming analysis are carried out to find out optimal design in terms of drawing force. We assume that the case which shows minimum drawing force in the subsequent operations is the best case. Through experiments it is found that the case which shows minimum drawing force also results in minimum drawing force and better product quality than other case. Thus, it is shown that this design strategy is very effective in the improvement of quality in drawn cups.

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터널 설계시 지하수의 고려방안 (Groundwater Considerations in Tunnel Design)

  • 이인모;김용진
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 1993년도 봄 학술회 논문집
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    • pp.1-8
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    • 1993
  • This paper concerns the analytical concept of tunnel design for the case where the groundwater level remains almost to a standstill even though the steady state groundwater flow occurs through tunnel drainage systems. The effect of the seepage force is considered in analysis. Two case strudies are made : the one the round shape tunnel ; the other the horse shape. The design moments, shear forces and axial forces are calculated and these results are compared to the case of water proof tunnel design as well as the case of the tunnel design without groundwater consideration.

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차륜형 장갑차용 가변형 사판식 피스톤 펌프 케이스의 구조해석 및 설계검증에 관한 연구 (A Study on the Structural Analysis and Design Verification of Variable Swash Plate Piston Pump Case for Wheeled Armored Vehicle)

  • 최성웅;김용석;양순용
    • 드라이브 ㆍ 컨트롤
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    • 제16권2호
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    • pp.43-50
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    • 2019
  • The objective of this study was to reverse engineer a swash plate type piston pump mounted on a wheeled armored vehicle and to analyze the structure of the pump case. From the analysis, the weak parts were identified and corrected in the final design. Each element corresponding to the piston pump case was analyzed. The analytical method was given static boundary conditions, load conditions and confirmed displacement, strain, stress, and safety factor. Plastic deformation and damage were also confirmed and the component elements redesigned through structural analysis Structural analysis and vibration analysis were carried out for the components of the piston pump case. The piston pump model was finally modified by structural analysis and vibration analysis results for each component assembly, and a prototype was designed. Durability test and environmental test were carried out and the test results satisfied all of the requirements. Therefore, the analytical method presented in this study can be utilized as a methodology for element component design in the development of various piston pumps.

본질적 논리모형에 근거한 원무관리시스템의 분석과 설계 (Essential Logical Model Approach in Analysis and Design for Patient Management and Accounting System : A Case Study)

  • 김명기
    • 보건행정학회지
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    • 제4권2호
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    • pp.111-125
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    • 1994
  • In developing total hospital information system, large amount of time and expense are to be spent while its results are likely to lead itself to end-users' dissatisfaction. Some of the main complaints on the part of end-users come from insufficient consideration of end-users environment as well as inappropriate representation of their requirement in the system alalysis and design. This papre addresses some advantages of Essential Logical Modeling Process for better analysis and design, explaining by example the developmental process of the Patent Management and Accounting System for a tertiary care hospital. In the case, the Essential Model, suggested by McMenamin and Palmer, proved to be an effective tool for clear separation of analysis and design phase and for better communication among system developers and with end-users. The modeling process itself contributed to better program modularity as well, shown in a Structured Chart. Difficulties in learning how to identify' essential activities' for the modeling practice were experienced in the beginnins stage, which were, however, overcome by elaborating some heuristic guideling and by rdferring to necessary tools including State Transition Diagram, Control Flow Diagram, and so many. While full evaluation of the Essential Model usag remains to wait till the completion of the case project, its strengt in making clear distinction between analysis and design phase was enough to be attractive to system analysts. The model concepts are open to many further application fields, particularly such areas as business re engineering, process remodeling, office automation, and organizational restructuring.

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제품디자인의 시장성 평가방법 연구 (A Study on the Evaluation Method about Marketability of Product Design)

  • 이문기
    • 디자인학연구
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    • 제14권1호
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    • pp.93-101
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    • 2001
  • This study suggested how to apply it decision-making of product development rapidly by design evaluation process to objectify and the result to quantify with viewpoint of design evaluation sets to marketability. Coverage of this method limited to the evaluation stage of design concept. The procedure of study, first of all, referred to some type of design evaluation method and their feature. And next, referred to some kinds of demand forecasting for marketing. Above an, this study focused on the method of demand forecasting by buying intentions surveys proper to the marketability evaluation of new product design. On a case study, I had investigated preference survey and buying intentions surveys about the design proposal of "language master audio". I selected the best design proposal through the conjoint analysis and also investigated demand forecasting. First, on the basis of buying intentions surveys, choose population and had produced buying demand, awareness demand, potential demand. I could estimate some profit to take out expense and cost from the buying demand. This estimated profit is marketability judgement data of product design at the design concept stage and can be utilized to measurable data for decision-making of product development. Through the case study, this method could forecast a target demand, and even if it is some difference between real sales volume, but the case study could verified that this method is effective to the evaluation of marketability in case of completely new product got on the typical category and the product category could be set up the population clearly.

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전쟁기념(박물)관의 새로운 전시 패러다임에 관한 연구 (A Study on the New Paradigm Shift of War Memorial/Museum)

  • 김명식
    • 한국실내디자인학회논문집
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    • 제25권4호
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    • pp.98-104
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    • 2016
  • The study explores, by carrying out literature review (theoretical pursuit) and case analysis (practical works), the changed point of view on the European war memorial/museum, the revolution of museography and its paradigm, the case analysis of war memorial/museum in the paradigm shift, the new point of view and its role. Through the theoretical thinking and the case analysis, it concludes that the exhibition space of war memorial/museum, which is in the center of material culture, is turning into the venue of societal culture. Ultimately, it aims at indicating the necessity of the paradigm shift, and offering the exhibition design strategy and technique which can better display the objects - remains - of the terrible war and the importance of peace for the old generation and the future generation.