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XML Web-Service를 이용한 분산 엔지니어링 시스템에 관한 연구
권기억(Ki-Eak Kwon),조성욱(Seong Wook Cho),최영(Young Choi),이규봉(Gyu-Bong Lee) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This article describes a design and implementation of the Distributed Engineering Application System over Internet using the Web Service. Though these Engineering Application Systems work very well in an intranet environment, attempting to use them over the Internet presents two significant problems. First, the systems do not interoperate. While they all dealt with objects, they disagreed over the details. Secondly, and more important, their focus on RPC-style communication typically led to tightly coupled systems built around the explicit invocations of object methods. Also, the integrated system of the design and analysis process and data representation in the product design application domain is applied in the Distributed Engineering Web Service System. This system can be extended for other design and analysis views in product design.
임현준,이동열,이재열,권기억,신종계,Yim Hyunjune,Lee Dongyul,Lee Jaeyeol,Kwon Ki Eak,Shin Jong-Gye 대한기계학회 2005 大韓機械學會論文集A Vol.29 No.10
A general and efficient methodology has been developed to analyze dimensional variations of an assembly, taking into account of weld distortion. Weld distortion is generally probabilistic because of the random nature of welding parameters such as the welding speed, maximum welding temperature, ambient temperature, etc. The methodology is illustrated through a very simple example of two perpendicular plates fillet-welded to each other. Two steps comprise the methodology: establishment of a weld-distortion database, and tolerance analysis using the database. To establish the database, thermo-elasto-plastic finite element analyses are conducted to compute the weld distortion for all combinations of discrete values of major welding parameters. In the second step of tolerance analysis, the weld distortion retrieved from the database is used in addition to the dimensional tolerances of the parts. As a result of such an analysis, sensitivities of the assembly's dimensional variations to the part tolerances and weld distortion are obtained, which can be help improve the dimensional quality of the assembly.
조성욱(Seong Wook Cho),권기억(Ki Eak Kwon),이규봉(Gyu-Bong Lee) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
An automobile body is composed of compliant parts, so that the three-dimensional structural analysis using the finite element analysis is performed to consider a deformation in parts. An assembly process is a complicated process, so it requires vast amount of data and computing time. To solve this problem, two step substructure analysis is performed referring to the assembly process tree which presents the assembly process information. Also. In addition to the distribution of substructure process, numerical solution process itself was again divided into parallel processes using multi-frontal method for computational efficiency. In contrast to the specially designed parallel process for specific hardware. CORBA-based parallel process is well suited for heterogeneous platforms over a network.
김기일(K. I. Kim),권기억(K. E. Kwon),박지형(J. H. Park),최영(Y. Choi),조성욱(S. W. Cho) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
In this paper, the CAE Service System for Collaborative Engineering Environment with web services and Multi-frontal Method has been investigated and developed. The enabling technologies such as SOAP and .NET Framework play great roles in the development of integrated distributed application software. In addition to the distribution of analysis modules, numerical solution process itself is again divided into parallel processes using Multi-frontal Method for computational efficiency. We believe that the proposed approach for the analysis can be extended to the entire product development process for sharing and utilizing common product data in the distributed engineering environment.