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안태원(Tae-Won An),한근조(Geun-Jo Han),한동섭(Dong-Seop Han),이성욱(Seong-Wook Lee),이정명(Jung-Myung Lee),이경민(Kyong-Min Lee) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.4
LMTT(Linear Motor based Transfer Technology) is a new type of transfer system used in the maritime container terminal for the port automation, and largely consists of a controller, shuttle car, and rail. The shuttle car is divided into the frame part, the driving part, and wheels. In order to design this system, various researches on each part of it must be conducted. In this study, we dealt with the optimum design for the frame part of the shuttle car designed from previous studies on the strength of the frame with respect to the number of cross beams to minimize the weight of the shuttle car and to satisfy design criteria of cargo-handling systems in container terminal. For the optimization of the frame, thicknesses of each beam was adopted as design variables, the weight of the frame as objective function, and stress and deflection per unit length as constraint condition.
안태원(Tae-Won An),이성욱(Seong-Wook Lee),한동섭(Dong-Seop Han),한근조(Geun-Jo Han) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.6
Because strong wind is one of the few forces that, although considered in container crane design, still cause significant damage, a container crane was tested to investigate wind load characteristic in uniform flows. So this study was carried out to analyze the effect of wind load on the structural stability of a container crane with 45° boom, degree using wind tunnel test. The scale of a container crane dimension, wind velocity and time were chosen as 1/200, 1/13.3 and 1/15. And this experiment was implemented in an Eiffel type atmospheric boundary layer wind tunnel with 11.52㎡ cross-section area. Each directional drag and overturning moment coefficients of a container crane were investigated
유동-구조 연성해석기법을 이용한 풍하중이 관절형 컨테이너 크레인에 미치는 영향에 관한 연구
안태원(Tae-Won An),이성욱(Seong-Wook Lee),한동섭(Dong-Seop Han),김태형(Tae-Hyung Kime),한근조(Geun-Jo Han) 한국항해항만학회 2008 한국항해항만학회지 Vol.32 No.1
컨테이너 크레인의 설계 시 적용되는 하중 조건 중에서 풍하중이 가장 중요하게 고려되어지는바, 본 연구는 75m/s의 풍하중이 컨테이너 크레인에 작용 할 때 컨테이너 크레인의 구조적 안정성에 미치는 영향을 보다 정확하게 예측하기 위하여 유동-구조 연성해석을 실시하였다. 컨테이너 크레인에 작용하는 실제 유동현상을 고려하기 위하여 먼저 전산유동해석을 실시하였으며, 이를 통해서 얻어진 풍하중을 구조해석의 하중조건으로 적용하는 유동-구조 연성해석을 통하여 컨테이너 크레인 각 지지점에서의 반력을 도출하고 그 결과를 분석하였다. 사용된 모델은 주변 환경으로 인하여 컨테이너 크레인의 최대 고도가 제한 될 경우 사용되는 관절형 컨테이너 크레인이며 전산유동해석 및 유동-구조 연성해석 프로그램으로는 ANSYS ICEM CFD 10.0과 ANSYS CFX 10.0을 사용하였다. This study was carried out to the effect of wind load on the structural stability of an articulated type container crane according to the wind direction assuming that 75m/s wind velocity is applied on a container crane using FSI(fluid-structural interaction). To consider fluid phenomenon around the container crane, the wind load was derived by the computation fluid dynamic, and it applied to the FSI which can guarantee an accuracy and a reliability in the design stage for wind resistant structural stability to minimize the damage due to high wind load applied in a container crane with a 'ㄱ' type articulated boom which used in the total height restriction region. Following from this, the reaction force on the each support of a container crane was suggested. ANSYS ICEM CFD 10.0 and ANSYS CFX 10.0 used for computation fluid dynamic, and the ANSYS Workbench 11.0 was used for the fluid-structural interaction.
안태원(Tae-Won An),한근조(Geun-Jo Han),한동섭(Dong-Seop Han),이성욱(Seong-Wook Lee) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
Valves has been used widely in various industries. There are many purposes for valve usage in a piping system. One of them is to control the flow rate. For a design of ball valves, it is important to know the characteristics of flows inside a ball valve. In this study, the computation fluid dynamics were conducted to observe flow velocity, flow coefficient and pressure distribution using CFX 10 according to the valve angles and uniform incoming velocity.
한동섭(Dong-Seop Han),안태원(Tae-Won An),이성욱(Seong-Wook Lee),한근조(Geun-Jo Han) 한국기계가공학회 2007 한국기계가공학회지 Vol.6 No.3
LMTT (Linear Motor based Transfer Technology), which is a new type transfer system used in the maritime container terminal for the port automation, is driven by PM LSM (Permanent Magnetic Linear Synchronous Motor), and largely consists of a controller, shuttle car, and rail. The shuttle car is divided into the frame part, the driving part, and wheels. Because the shuttle car is supported by four wheels in opposition to have five times length for the width of it, a larger deflection than other transfer system using the linear motor occurs. This deflection changes the gap between the mover and the stator, and then brings on an ununiform thrust force. So in this study, we dealt with the structural design for the mover of the shuttle car to generate the uniform thrust force for the efficient control of it. For the investigation, the thickness for each beam of the mover was adopted as design variables, the weight of the mover as objective function, and stress and deflection of the mover as constraint condition.
한갑수 ( Gab Soo Han ),조현길 ( Hyun Kil Jo ),이창환 ( Chang Hwan Lee ),안태원 ( Tae Won An ) 한국지리정보학회 2009 한국지리정보학회지 Vol.12 No.2
본 연구의 목적은 생태도시 구상을 위한 토지용도의 적지분석을 위한 방법으로 GIS를 활용하여 생태환경을 정리, 분석하여 지역 및 공간에 대한 적합성을 판정하는 것이었다. 적합성 판정에 영향을 미치는 생태환경 요소로서 표고, 경사, 수계/저류지, 비오톱, 토양생산성, 시각민감도, 식생, 녹지연결성 등 8가지를 선정하였다. 각 요소의 범주를 개발 및 보존가치에 따라 5등급으로 등급화하고, 각 요소별 가중치를 부여하였다. 도면중첩은 최대값을 이용하였으며, 분석의 최종단계에서 5등급의 토지 적합성 등급을 제시하였고 이에 따라 개발, 보전, 절대보존 공간 등 등급별로 토지용도를 제안하였다. The purpose of this study is to decide the suitability of the land use on eco-city by analysing ecological elements using GIS. Selected ecological elements for suitability analysis were altitude, slope, watershed, biotope, soil productivity, visual sensitivity, vegetation, and green connection. The category of each element was classified into 5 grades, and was given weight according to each element. The maximum value of each element was extracted from overlay analysis process. The result of analysis was classified into 5 grade finally. As a result, land use was proposed to be development, conservation, and preservation area.
한근조,안태원,이성욱,한동섭 동아대학교 생산기술연구소 2006 生産技術硏究所硏究論文集 Vol.11 No.-
Because strong wind is one of the few forces that, although considered in container crane design, still cause significant damage, a container crane was tested to investigate wind load characteristic in uniform flows. So, this study measured an external point pressure at the each members of a container crane according to a wind direction and a shape of members in a wind-tunnel test. The result of this test was compared to those of computation fluid dynamics using a CFX 10. The scale of a container crane model for wind tunnel test applied similarity scales to consider the size of the wind tunnel test section and the boundary condition for CFD is like wind tunnel test.
한성호,김치홍,안태원,양보규,정선태 대한골절학회 1998 대한골절학회지 Vol.11 No.1
A fracture of the tibial condyle is an intra-articular fracture of a major weight bearing joint and loss of function result in high percentage disability of the extremity. The goal of tibial condyle fracture management is a stable, well-aligned, congruent joint, with a painless range of motion and function. The management of tibial condyle fractures remains controversal. Many authors have stated that anatomical restoration of the articular surface and stable internal fixation are essential for these goals to be attained, but good results have also been reported after the conservative treatment. So the method of treatment has to be selected in each individual cases. We evaluated the 35 tibial plateau fractures, 17 treated by conservative method and l 8 treated by surgery, at an average follow up of 17 months. The results were obtained as follows; 1. The most common cause of injury was motor vehicle accident in 25 cases(71.5%). 2. According to Schatzker classification, the most common type was type II in 12 cases(34.5%). 3. Associated soft tissue injuries were in 19 cases(54.3%). Among these, meniscal injuries were most common(in 13 cases). 4. According to Hohl and Luck criteria, the clinical results were acceptable in 11 of 17 cases (64.7k) after non-operative methods and 14 of 18 cases(78%) after operative methods.