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파라메트릭 모델링 기법을 활용한 자동차 서스펜션 로워암 모델링 보조시스템 개발
한승호(Seung Ho Han),장광섭(Kwang Sub Jang),신소영(So Young Shin),이태희(Tae Hee Lee),권태우(Tae Woo Kwon),서범경(Bum Kyung Suh) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
In an early stage of design process for the lower arm in automobile suspension module, an easy and fast FE-modeling, static and durability analysis supported by parametric study are highly required. The modeling support system has been developed, which is implemented on the platform of MSC.PATRAN and utilized ANSYS, MSC.NASTRAN and MSC.FATIGUE. The CAD file produced by taking into account of automatic 3D parametric model in CATIA V5 can be transferred to the modeling support system. For the process automation of various design activities including the parametric study, human interactions are excluded practically, in which all processes are dealt with the XML-wrapper, and in- and output data are linked each other and treated in the EDM. The developed modeling support system implemented by the integrated design system would not only reduce time and cost to design and analyze engineering problems, but also facilitate interoperability between diverse and heterogeneous engineering resources.
한승호(Seung Ho Han),이재경(Jai Kyung Lee),이태희(Tae Hee Lee),장광섭(Kwang Sub Jang) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
In the manufacture of automobile suspension modules at a company as parts supplier, the design process includes the detail design and the design modification via structural and fatigue durability analyses considering PoF(physics of failure) of their weldments that are repeated more than four times sequentially. The approval of the design and the release of final drawings follows. For the suspension modules, e.g. control arms and cross member, the man-hours per worker required in the process outlined above can reach as high as 1,414hours. Application of the developed integrated design system can reduce the man-hours of 1,004. In comparison with the conventional design process, this integrated design system reduces the required time by about 40%. If expense is taken into account, a savings of approximately $192,000 is estimated, assuming the design process accounts for 1.5% of total sales for the parts supplier
자동차 서스펜션 모듈 피로내구해석을 위한 통합설계시스템 개발
한승호(Seung Ho Han),이재경(Jai Kyung Lee),이태희(Tae Hee Lee),장광섭(Kwang Sub Jang),권태우(Tae Woo Kwon) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
Designer must cope with frequent changes in geometric information of automobile suspension module in the early stage of the design process. The authors developed the PSG(Parametric Set Generator) to create parametric models and to change geometric information concerning the lower arm, which is one of the important parts of the automobile suspension module. CAD models provided from the PSG can be utilized to assess fatigue durability via the FE modeling support system. This system provides easy and fast FE-modeling for a static and durability analysis of the lower arm. The PSG and the FE modeling support system are integrated using the e-engineering framework based on the JADE platform. In this study, a durability analysis as a case study for the lower arm manufactured at H company is performed, and the efficiency obtained is discussed.