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리프트 컬럼 배치설계가 탑승교 구조 강성에 미치는 영향에 대한 연구
나원현,구환준,빈수열,Na, Won Hyun,Koo, Hwan Jun,Bin, Soo Yeol 대한기계학회 2015 대한기계학회 논문집 C. 기술과 교육 Vol.3 No.4
탑승교는 여객터미널청사에서 항공기 출입구 사이를 이어주는 이동통로를 탑승객에게 제공하는 공항 편의시설 중 하나다. 본 연구에서는 유한요소 해석법을 이용하여 탑승교 설계시 리프트 컬럼의 배치설계가 탑승교 구조물의 처짐 및 응력상태에 미치는 영향 비교 검토하였다. 그 결과 탑승교 터널 프레임의 중첩구간에서 최대응력이 발생함을 확인하였고, 리프트 컬럼 배치설계와 그 값의 크기가 매우 밀접한 관계를 갖고 있음을 확인하였다. The passenger boarding bridge which provides a safe and comfort passenger pathway between an airplane and airport terminal gate is one of the apron equipment. This study investigates the effect of the lift column layout design on structural strength of the passenger boarding bridge by using finite element method, comparing deflection and stress. The overlapped zone of the tunnel frame A and B occurred at the maximum stress. The results of this research show that the lift column layout design is closely the value of the maximum stress.
나원현(Won-Hyun Na),최형석(Hyeung-Sik Choi),김동호(Dong-Ho Kim),추우헌(U-Heon Chu) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
In this paper, the structure of a new gravity compensator was studied, and the biped walking robot applying a gravity compensator was presented to improve the performance of the robot. The robot had 13 degree of freedom and is driven by the joint actuator with the gravity compensator. Each leg of the robot is composed of six joints three joints at the hip, a joint at the knee, and two joints at the ankle. The leg of the robot was designed to support 74㎏ weight including 30㎏ payload thanks to the gravity compensator. The performance of the robot was presented by reducing the payload applied to the leg joint of the robot thanks to the gravity compensator.
나원현(Won-hyun Na),최형식(Hyung-sik Choi),강동완(Dong-wan Kang),추우헌(Woo-hun Choo) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
In this paper, a 27 degree-of-freedom humanoid robot which takes a similar structure of the human body is constructed and its structure is presented. The robot is composed of three parts: 3 d.o.f head, 12 d.o.f arm , and 12 d.o.f leg. The structure of the head , arm, and leg of the robot was studied and their forward kinematics are analyzed. The joint actuator of pitching joints of the proposed robot is designed with the closed chain mechanism to load heavy weight. Its structure analysis was made.
이권희(Lee Kwon Hee),구환준(Koo Hwan Jun),나원현(Na Won Hyun),이은숙(Lee Eun Suk) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
The passenger boarding bridge which provides a safe and comfort passenger pathway between an airplane and an airport terminal gate is one of the apron equipment built with high-level safety requirements. To achieve its safety requirements, structural strength must be kept secured in various operational conditions including operation mode and changes of load conditions. This study investigates the effect of the various conditions such as operation mode, load combination, dynamic wind load on the displacements and stress distributions of complex structures. The results show that the design strength of the passenger boarding bridge is reach the safety requirement and the stress distribution of the ronde compare with tunnel is strongly effected by the slope angle of a tunnel, angle of the cabin and wind load.