• Title/Summary/Keyword: Concurrent Engineering

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Concurrent Engineering Design Optimization of Composite Structures (복합재 구조물의 동시공학 설계최적화)

  • 김건인;이희각
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1996.10a
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    • pp.304-312
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    • 1996
  • Concepts, methods and tools for interactive CAD-based concurrent engineering design optimization of mechanical/structural systems and components which are critical in terms of cost development time, functionality and quality, are presented. The emphasis is on implementation of methods and capabilities for the optimization of composite structural system, and the integration of design process and manufacturing process of composite structures into standard CAD-based concurrent engineering environment The optimization of composite fuselage structures are performed under concurrent engineering environment for the example.

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A Study on The Application Concurrent Engineering Concept in Industrial Design Practice - With emphasis on The Building of Design Prototype- (산업디자인 프로세스상의 실체화 단계를 위한 동시공학 개념 도입에 관한 연구 - 디자인 프로토 타입 제작을 중심으로)

  • 김관명;임창영
    • Archives of design research
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    • v.13
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    • pp.27-42
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    • 1996
  • With the rapid development of nowadays technologies, the environment of product development is experiencing structural changes than ever. Manufacturers are put under never-experienced pressures to launch their products in the market both faster and less expensively than their competitors while continuously improving product quality These pressures have given birth to so-called, Concurrent Engineering which is a systematic approach to the integrated, concurrent design of products and their related processes, including manufacture and support. Most manufactiring companies now recognize the importance of concurrent engineering and put heavy emphasis on the research and impementation of concurrent engineering. However, with this fundamental change in the process of product development, designers rarely pay attention to this newly demanding process. Designers still stay in the middle of process, satisfying their roles in dealing with aesthetic points of product. Designers badly need to incorporate the concept of concurrent engineering to design to design process and to adapt to this new environment. With these backgrounds, the study sets the objective to understand the nature of concurrent engineering and explore the possibility of it's application to industrial design. Particularly this study focuses on how the concept of concurrent engineering can be applied from the stage of form development to prototyping. At first, background, objectives, and scope of the study are discussed as an introductory part. It is followed by reviewing theories of concurrent engineering such as definition, history, technologies, examples, state of art and so on. Subsequently industrial design is viewed in terms of concurrent engineering and problems in industrial design are identified. Base on the findinss of precedent part of study, new process of industrial design incorporating concurrent engineering is developed. For the demonstration of new process, a case study of design of palm-top printer is introduced. Case study shows how the sketch, and forms can be transformed into prototyping with the simultaneous cooperation with engineering and other related specialists. Finally the study in summarized and future studies are prospected.

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Challenges and suggestions of resource planning for standardized concurrent construction

  • Chen, Xingbin;Li, Sining;Kim, Jung In;Fang, Yuan
    • International conference on construction engineering and project management
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    • 2020.12a
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    • pp.41-49
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    • 2020
  • Concurrent construction offers considerable improvement for shorten the project duration of its production process. Therefore, standardized concurrent construction is widely applied in building construction projects. However, resources planning for standardized concurrent construction project is manually developed by construction manager. This practice is not effective since it is time-consuming and error-prone for managers to identify all project-specific information, distinguish different activity-resource types, interpret these types and analyze how they affect resource allocated on an ad hoc basis. Therefore, this research investigates the opportunity for leveraging activity modeling to enable automated resource planning for standardized concurrent construction during project development, with identifying the characteristics of construction activities under standardized concurrent planning and determining the activity-resources types that affects resource planning. Both will function as a basis for modeling these construction activities in a computer-interpretable manner and for automation in resource planning.

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CAROD: Computer-Aided Reliable and Optimal Design as a concurrent system for real structures

  • Kharmanda, Ghias;Mohamed, Alaa;Lemaire, Maurice
    • International Journal of CAD/CAM
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    • v.2 no.1
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    • pp.1-12
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    • 2002
  • Computer-Aided Reliable and Optimal Design (CAROD) system is an efficient tool defining the best compromise between cost and safety. Using the concurrent engineering concept, it can supply the designer with all numerical information in the design process. This system integrates several fields such as multidisciplinary optimization, reliability analysis, finite element analysis, geometrical modeling, sensitivity analysis and concurrent engineering. When integrating these disciplines, many difficulties are found such as model coupling and computational time. In this paper, we propose a new concurrent methodology satisfying the reliability requirement, allowing the coupling of different models and reducing the computational time. Two applications (rotating disk and hook structures) demonstrate that CAROD system can be a practical concurrent engineering application for designers.

Product Development using Concurrent Engineering (동시공학에 의한 제품개발의 체계와 성공요인)

  • 이성호
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.19 no.38
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    • pp.207-215
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    • 1996
  • Concurrent Engineering is a concept to aim at product development lead-time in order to satisfy customer's changing tastes in n timely manner. This approach is concurrently integrating all participants and aspects of product design, development and manufacture. In this paper the concepts, framework, and success factor-teamwork- of concurrent engineering is presented.

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An Application of Concurrent Engineering in Korean Manufacturing Industry for TQM (국내 제조업 분야의 동시 공학을 이용한 TQM)

  • 이관석;최정재
    • Journal of Korean Society for Quality Management
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    • v.26 no.4
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    • pp.219-238
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    • 1998
  • The objective of this study was to establish a procedure of concurrent engineering which can be easily a, pp.icable in Korean industry. An investigation of various techniques of concurrent engineering was conducted. Problems of Korean companies which can be resolved by concurrent engineering techniques were identified. Techniques which can resolve these problems at the relatively low cost and without complicated computer facilities were selected and form a procedure for this study. The procedure was a, pp.ied to a manufacturing company for validation. It was found that this procedure can substantially reduce time and cost of R&D and manufacturing.

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A Study on the Performance Analysis of Process Model with Resource Constraints in Concurrent Engineering Environment (동시공학 환경에서 자원제약이 있는 프로세스 모델의 성능분석에 관한 연구)

  • 강동진;이상용;유왕진;정용식
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.22 no.51
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    • pp.231-240
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    • 1999
  • A major concern in Concurrent Engineering is the control and management of workload in a period of process. As a general rule, leveling the peak of workload in certain period is difficult because concurrent processing is comprised of various processes, including overlapping, paralleling looping and so on. Therefore, the workload management with resource constraints is so beneficial that effective methods to analyze design process are momentous. This study presents the Timed Petri Nets approach of precedence logic networks, and provides an alternative for users to analyze constraint processes to resolve conflicts of resources. Another approach to Continuous Time Markov Chain using Stochastic Petri Nets is also proposed. These approaches are expected to facilitate resolving resource constrained scheduling problems more systematically in Concurrent Engineering environment.

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The Effect of Factors in The Concurrent Engineering on the Efficiency of the Product Development Processes (동시공학의 제 요인들이 제품개발의 효율성에 미치는 영향)

  • 손달호
    • Journal of the Korean Operations Research and Management Science Society
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    • v.21 no.3
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    • pp.89-108
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    • 1996
  • During the whole product design and development processes, the concurrent engineering relies on strong and permanent interactions between the departmental functions. Concurrent or simultaneous engineering in new product development is a new concept which needs to be redefined. This paper deals with a concurrent engineering model which represents how concurrency, as an organizational process, is related to a interfunctional project team. Four dimensions shaping the sucess of the concurrent engineering are suggested with detailed meausrement instruments. Moreover, an empirical study on the effects of the four dimensions on the efficiency of the product development processes is carried out in the field of electronic industries.

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Development of Concurrent Engineering System for Design of Composite Structures (복합재 구조물의 설계를 위한 동시공학 시스템의 개발)

  • ;;;H.T.Hahn
    • Composites Research
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    • v.12 no.6
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    • pp.43-52
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    • 1999
  • This paper explains the development of a concurrent engineering system for the rlesign of composite structures. The concurrent engineering system is developed to meet the demand for the better quality products with lower production cost and time. In this study, to compose the architecture of concurrent engineering system, the commercial and noncommercial programs related to design and analysis of composite structures are surveyed and classified. The concurrent engineering system is including various design modules such as design/analysis of composite structures using CLPT and FEM, buckling and post bucking analysis, thermo-elastic analysis of carbon-carbon composite, and optimum design using expert system and genetic algorithm. For the integration and management of softwares, the concurrent engineering system is realized by Microsoft visual $C++{^\circledR}$ that provide multi-tasking and graphic user interface environment.

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