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건축물(建築物) Elevator의 방진(防振)을 위한 진동특성(振動特性) 분석(分析)
전의식,조병후,Jeon, Euy-Sik,Cho, Byoung-Hoo 한국디지털건축·인테리어학회 2005 한국디지털건축인테리어학회 논문집 Vol.5 No.2
The interest about noise and vibration which occurs in buildings is increasing by a living level elevation recently. Particularly, the vibration which occurs from the elevator cage of the building is possibility of damage to the users of the building continuously. So, the purpose of this study is a place where it examines closely the vibrating unit of the elevator and propose the countermeasure of it.
건축물(建築物) Elevator의 소음진동(騷音振動) 저감(低減) 방안(方案)
전의식,조병후,Jeon, Euy-Sik,Cho, Byoung-Hoo 한국디지털건축·인테리어학회 2005 한국디지털건축인테리어학회 논문집 Vol.5 No.2
The interest about noise and vibration which occurs in buildings is increasing by a living level elevation recently. Particularly, the vibration which occurs from the elevator cage of the building is possibility of damage to the users of the building continuously. So, the purpose of this study is a placeThe interest about noise and vibration which occurs in buildings is increasing by a living level elevation recently. Particularly, the noise and vibration which occurs from the elevator of the building is possibility of damage to the users of the building continuously. So, the objective of this research is to investigate the noise and vibration of the elevator and propose the method which reduces of it gained thorough this study.
전의식,조병후,Jeon, Euy-Sik,Cho, Byoung-Hoo 한국디지털건축·인테리어학회 2004 한국디지털건축인테리어학회 논문집 Vol.4 No.1
The interest about noise and vibration is increasing by a living level elevation recently. Particularly, the interest about the influence that vibration of machine has on the safety of building is rising. However, there are a lot of the cases that the influence of machine isn't considered in designing the factory buildings. The purpose of this study is to suggest the results of measuring that the influence of machine's vibration in A factory has on the building structure.
전의식,조병후,Jeon, Euy-Sik,Cho, Byoung-Hoo 한국디지털건축·인테리어학회 2003 한국디지털건축인테리어학회 논문집 Vol.3 No.1
The interest about noise and vibration is increasing by a living level elevation recently. Particularly, the interest about the influence that vibration of machine has on the safety of building is rising. However, there are a lot of the cases that the influence of machine isn't considered in designing the factory buildings. The purpose of this study is to suggest the results of measuring that the influence of machine's vibration in A factory has on the building structure.
건축물(建築物) Elevator Cage의 진동(振動) 측정(測定)
전의식,조병후,Jeon, Euy-Sik,Cho, Byoung-Hoo 한국디지털건축·인테리어학회 2004 한국디지털건축인테리어학회 논문집 Vol.4 No.2
The interest about noise and vibration which occurs in buildings is increasing by a living level elevation recently. Particularly, the vibration which occurs from the elevator cage of the building is possibility of damage to the users of the building continuously. So, the purpose of this study is to suggest of measuring results to the vibration that occurs from the elevator cage and propose the countermeasure of it.
전의식(Jeon, Euy-Sik),강훈효(Kang, Hoon-Hyo),이다혜(Lee, Da-Hye) 한국산학기술학회 2007 한국산학기술학회논문지 Vol.8 No.2
최근 자동차 안전에 대한 수요자의 요구가 증대되면서 용접부에 대한 품질검사방식도 강화되고 있다. 이에 따라 시트구조물의 용접부 비드 형상치수를 육안검사 또는 수동검사에 의존하던 방식에서 전수기록검사에 의한 품질 관리가 요구되고 있다. 본 연구에서는 시트프레임 용접부의 품질검사를 위하여 작업자가 용접비드를 측정하면 자동으로 계측되는 시스템을 LabVIEW를 이용하여 개발하였다. 용접부의 비드 폭과 길이에 대한 품질 기준을 입력하여 놓으면 측정 시 측정하고자 하는 대상이 비드길이 인지 폭인지를 자동으로 판단하여 측정되도록 하였으며 측정된 데이터는 포인트별로 저장 기록되어 용접부의 품질기록을 보존토록 하였다. 이러한 시스템을 자동차 시트 용접부에 적용하여 실험하였으며 품질관리 작업효율에 좋은 영향을 주었다. Recently, as consumer’s claim for car safety is increased, quality inspection method for welding zone is strengthened. Therefore, from the methods that depend on welding zone bead shape size of seat frame in macrography or passive examination, the quality control by whole recording inspection is required. In this study, the system that is measuring automatically if worker checks welding bead for quality inspection of seat frame is developed using LabVIEW. If the quality standard for the bead width and length of welding zone is inputted, the system measures automatically whether welding zone is bead length or bead width. Measured data is preserved by points and quality recording of welding zone is stored. The car seat frame welding zone is applied and experimented. The results gave good influence on the quality control of work efficiency.
자동차용 시트프레임의 용접성 향상을 위한 지그 시스템 개발
전의식(Jeon, Euy-Sik),신윤호(Shin, Yun-Ho) 한국산학기술학회 2007 한국산학기술학회논문지 Vol.8 No.2
시트프레임은 탑승자와 차량을 연결되는 유일한 구조부품으로 안전성을 위해서는 용접부 품질 향상이 필수적이다. 일반적으로 시트프레임의 용접에는 로봇과 전용지그시스템이 사용되며 로봇과 지그시스템의 간섭으로 인한 용접누락부가 발생할 수 있다. 본 연구에서는 기존 업체에서 사용하고 있는 용접지그시스템의 용접누락부에 대해 분석하였고 이를 해결하기 위하여 사용된 3차원 모델링 및 설계변경에 대해 논하였다. 결론적으로 시스템의 용접생산성이 향상되었고 최적의 지그시스템 개발을 통해 수동용접지그가 불필요하게 됨을 알 수 있었다. Improvement of welding property of seat frame is necessary for safety because seat frame is a unique connecting structural part between the rider and vehicle. Generally the robot and jig system for own use is used for welding of seat frame and unwelded zone can be inspected because of the geometrical interference between robot and jig system. In this study the unwelded zone of the conventional welding jig system is analysed and the 3D modeling and design change to solve the problem is discussed. As a result the weldability of system is improved and the manual welding jig is unnecessary because of the optimal jig system.
전의식(Euy-Sik Jeon),오재응(Jae-Eung Oh) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
Much experience and knowledge is needed in welding because there are many working parameters and quantitative description is difficult. Therefore, introduction of expert system based on such data base has been required. In this study, welding heat and shape of bead was controlled by fuzzy inference with the welding condition, position error and voltage and current error of robot. For this, torch trajectory of robot was generated by modeling the working data with CAD and then welding was carried out through down loading to robot. And working error was controlled by on-line comunication.