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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Computational Design and Engineering
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Journal DOI :
Society of CAD/CAM Engineers
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Volume & Issues
Volume 14, Issue 6 - Dec 2009
Volume 14, Issue 5 - Oct 2009
Volume 14, Issue 4 - Aug 2009
Volume 14, Issue 3 - Jun 2009
Volume 14, Issue 2 - Apr 2009
Volume 14, Issue 1 - Feb 2009
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Block Erection Simulation in Shipbuilding Using the Open Dynamics Module and Graphics Module
Cha, Ju-Hwan ; Roh, Myung-Il ; Lee, Kyu-Yeul ;
Korean Journal of Computational Design and Engineering, volume 14, issue 2, 2009, Pages 69~76
The development of a simulation system requires many sub modules such as a dynamic module, a visualization module, etc. If a different freeware is used for each sub modules, it is hard to develop the simulation system by incorporating them because they use their own data structures. To solve this problem, a high-level data structure, called Dynamics Scene Graph Data structure (DSGD) is proposed, by wrapping data structures of two freeware; an Open Dynamics Engine (ODE) for the dynamic module and an Open Scene Graph (OSG) for the visualization module. Finally, to evaluate the applicability of the proposed data structure, it is applied to the block erection simulation in shipbuilding. The result shows that it can be used for developing the simulation system.
Conceptual Design of a Work Support Robot for the Prevention of Musculoskeletal Disorders in Shipbuilding
Roh, Myung-Il ; Lee, Kyu-Yeul ; Lee, Jung-Woo ; Lee, Jae-Seung ;
Korean Journal of Computational Design and Engineering, volume 14, issue 2, 2009, Pages 77~86
During manual work in shipbuilding such as blasting, grinding, and so on, a large force is acted on the body of a worker. As a result, this work induces musculoskeletal disorders of the worker and it also induces severe social problems. To solve this problem, we are developing a work support robot for the prevention of musculoskeletal disorders in shipbuilding. In this study, a result of conceptual design of this robot is presented. A worker can perform the blasting work with a small force using this robot which can lessen the force acting on the body of the worker.
A Study on the Development of a Human Middle Ear Implant
Yoo, Seung-Hyun ; Kim, Hak-Kyun ; Kim, Jong-Bum ; Song, Joon-Ho ; Oh, Dae-Jin ;
Korean Journal of Computational Design and Engineering, volume 14, issue 2, 2009, Pages 87~95
This paper describes the design of the ossicular replacement prosthesis for the people who have problem of hearing because of middle ear disease. Also the simulation results of the designed product for verification by finite element analysis software (ABAQUS) are presented. New model is applied to middle ear FE analysis which was generated in previous study. The full replacements of ossicular prosthesis for ossicles (malleus, incus and stapes) are made of Hydroxyapatite and Titanium. Although other existing prosthesis models consider only sound amplification effect, current type has damper system which is operating on the audible frequencies. High frequency sound transmitted to inner ear can be reduced and the prosthesis and inner ear can be prevented from damage.
An Integrated Translation of Nuclear Power Plant Design Data ftom Specification-driven Plant Design Systems to a Neutral Product Model
Mun, Du-Hwan ; Yang, Jeong-Sam ; Han, Soon-Hung ;
Korean Journal of Computational Design and Engineering, volume 14, issue 2, 2009, Pages 96~104
It gradually becomes important to study on how to efficiently integrate and manage plant lifecycle data such as 2D schematic and 3D solid data, logical configuration data, and equipment specifications data. From this point of view, converting plant design data from various systems into neutral data independent from any commercial systems is one of important technologies for the operation and management of plants which usually have a very long period of life. In order to achieve this goal, a neutral model for efficient integration and management of plant data was defined. After schema mapping between one of specification-driven plant design systems and the neutral model was performed, a plant data translator is also implemented according to the mapping result. Finally, by experiments with nuclear power plant design, the feasibility of the translator was demonstrated.
An Initial Design System for the Customer-Oriented Excavator Front with Quality Function Deployment and Axiomatic Design
Jeon, Ki-Hyun ; Bae, Il-Ju ; Lee, Soo-Hong ;
Korean Journal of Computational Design and Engineering, volume 14, issue 2, 2009, Pages 105~114
A design needs various experience and design knowledge through a whole design process. Despite of all efforts and time, it is not easy to introduce a product that meets all customer's needs and expectation in time. To achieve the product goal, designers need a set of sequential process to find appropriate design parameters and ensure customers' needs and requirements. In this research we propose a design methodology for the initial design of an excavator front group with existing QFD(Quality Function Deployment) and Axiomatic Design to satisfy customer's requirements. It turns out that the proposed methodology can support designers more effectively, objectively, and systematically.
Development of a Design Support System to Improve a Coupled Design Process of an Excavator Front Layout Design
Bae, Il-Ju ; Lee, Soo-Hong ; Lee, Kyung-Soo ;
Korean Journal of Computational Design and Engineering, volume 14, issue 2, 2009, Pages 115~121
A layout design of an excavator front is a coupled design. Parameters of the layout design are coupled each other. So it is difficult to make decisions to set the parameters of the layout of an excavator front. We analyze the parameters of the layout design of an excavator front. We regroup the parameters as interface groups. And we suggest a new design process which is based on the interface groups. And we redesign user-interfaces of the Knowledge based Excavator Design System(KEDS).
Design Study of Adhesively Bonded Structures
Chung, Jae-Ung ;
Korean Journal of Computational Design and Engineering, volume 14, issue 2, 2009, Pages 122~128
The failure responses of adhesively bonded, hat stiffened structures are studied through numerical analysis using the finite element method. The responses are evaluated numerically for the bonded hat section/substrate structures containing different combinations of materials. It is studied what kind of material combinations causes the easier crack initiation in the structure. This study is conducted under plane strain conditions and J-integral via a commercial code ABAQUS as a total critical energy release criterion was used for observation on crack initiation. Also, the influence of adhesive on the structure is studied.
Application of ICP(Iterative Closest Point) Algorithm for Optimized Registration of Object Surface and Unfolding Surface in Ship-Hull Plate Forming
Lee, Jang-Hyun ; Yoon, Jong-Sung ; Ryu, Cheol-Ho ; Lee, Hwang-Beom ;
Korean Journal of Computational Design and Engineering, volume 14, issue 2, 2009, Pages 129~136
Generally, curved surfaces of ship hull are deformed by flame bending (line heating), multi-press forming, and die-less forming method. The forming methods generate the required in-plane/bending strain or displacement on the flat plate to make the curved surface. Multi-press forming imposes the forced displacements on the flat plate by controlling the position of each pressing points based upon the shape difference between the unfolded flat plate and the curved object shape. The flat plate has been obtained from the unfolding system that is independent of the ship CAD. Apparently, the curved surface and the unfolded-flat surface are expressed by different coordinate systems. Therefore, one of the issues is to find a registration of the unfolded surface and the curved shape for the purpose of minimum amount of forming works by comparing the two surfaces. This paper presents an efficient algorithm to get an optimized registration of two different surfaces in the multi-press forming of ship hull plate forming. The algorithm is based upon the ICP (Iterative Closest Point) algorithm. The algorithm consists of two iterative procedures including a transformation matrix and the closest points to minimize the distance between the unfolded surface and curved surfaces. Thereby the algorithm allows the minimized forming works in ship-hull forming.