http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
자동차 TAIL GATE용 GAS SPRING 적용 설계
신찬배,이상화 울산과학대학 2003 연구논문집 Vol.29 No.2
차종마다의 다양한 Tail Gate의 특성에 의해서 Gas Spring을 적용하기 위해서는 많은 문제점을 가지고 있다. 이 논문에서는 Tail Gate와 Gas Spring 사이의 일반적인 관계를 규명하고 향후 개발될 차종에 적용 가능한 설계방법을 제시한다. With the characteristics of various vehicle's tail gates, there are a lot of problems to adapt gas spring. In this paper, we prove the general relations between the tail gate and the gas spring and suggest an adaptive design method.
강준혁(JoonHyuk Kang),마동희(DongHee Ma),천경섭(KyungSub Chun),전승(Seung Jeon) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
The operation of Tail gate depends on moment, such as Tail gate/Gas lifter, and also resistance, such as Weather strip/Air tight. Even though moment and resistance are critical factors for operation of Tail gate, we used to set up the Gas lifter-layout by engineering know-how and by trial and error, and without no consideration for resistance. Thus, it might be impossible that we set up the Gas lifter-layout optimized by prediction. In this paper we introduce air tight resistance value as a result of test, and introduce kinematic solution to predict the improved operation. The program, developed on EXCEL VBA by reflecting the test result and kinematic solution, should facilitate to improve operation of Tail gate by the prediction.
이춘태(Choon Tae Lee) 유공압건설기계학회 2015 드라이브·컨트롤 Vol.12 No.4
Unlike a typical metal spring, a gas spring uses compressed gas contained in a cylinder and compressed by a piston to exert a force. A common application includes automobiles where gas spring are incorporated into the design of open struts that support the weight of tail gate. They are also used in furniture such as office chairs, and in medical and aerospace applications. The gas spring works by the application of pressurized gas (nitrogen) contained in a cylinder. The internal pressure of the gas spring greatly exceeds atmospheric pressure. This differential in pressure exists at any rod position and generates an outward force on the rod, making the gas spring extend. In this paper, we investigated the dynamic characteristics of a gas spring on an automotive tail gate system.
이춘태(Choon Tae Lee) 유공압건설기계학회 2015 드라이브·컨트롤 Vol.12 No.4
A gas spring provides support force for lifting, positioning, lowering, and counterbalancing weights. It offers a wide range of reaction force with a flat force characteristic, simple mounting, compact size, speed controlled damping, and cushioned end motion. The most common usage is as a support on a horizontally hinged automotive tail gate. However, its versatility and ease of use has been applied in many other industrial applications ranging from office equipment to off-road vehicles. The cylinder of a gas spring is filled with compressed nitrogen gas, which is applied with equal pressure on both sides of the piston. The surface area of the rod side of the piston is smaller than the opposite side, producing a pushing force. The magnitude of the reaction force is determined by the cross-sectional area of the piston rod and the internal pressure inside the cylinder. The reaction force is influenced by many design parameters such as initial chamber volume, diameter ratio, etc. In this paper, we investigated the reaction force characteristics and carried out parameter sensitivity analysis for the design parameters of a gas spring
유압 구동계 에너지 재생 브레이크를 적용한 자동차 테일게이트 개폐장치에 대한 동특성 해석
최순우(Soon-Woo Choi),허준영(Jun-Young Huh) 유공압건설기계학회 2010 드라이브·컨트롤 Vol.7 No.2
The typical trunk lid system for vehicle is composed of a hinge having 4-bar link and gas lifter. Here, the energy regenerative brake of hydraulic driven systems is applied to the tail gate system for vehicle and removed the gas lifter. The new tail gate system is composed of a hydraulic pump by electric motor, a hydraulic motor, four check valves, an accumulator, a relief valve and a directional control valve. The dynamic characteristics of the hydraulic motor system, such as the surge pressure and response time, are investigated in both brake action and acceleration action. The capacity selection method of accumulator by mathematical model is based upon trial and error approach and computer simulation by AMEsim software is carried out.
알루미늄 판재의 Tail Gate Hinge 부품 블랭킹 공정에서 버어 감소 및 융착 방지를 위한 급속 Air Cooling 금형기술
박동환(Dong-Hwan Park),이태길(Tae-Gil Lee),전하준(Ha-Jun Jeon) 한국생산제조학회 2023 한국생산제조학회지 Vol.32 No.1
Aluminum alloy is different from high strength steel, which is a hard material. Cracks owing to insufficient elongation in the press forming process and shear stress repeatedly applied in the shear process cause aluminum particles fused to the material surface to fall. To eliminate these, a large waste of manufacturing time occurs due to additional processing operations. We developed a rapid air cooling shear mold with a vortex tube that can prevent fusing of aluminum material at the punch and die edges of the upper and lower molds. The goal was to solve the chronic burr problem by minimizing the thermal occurrence generated during shearing. In the blanking mold of Tail Gate Hinge parts, the temperature inside the mold increases owing to the heat generated during continuous press production. Cooling is possible in an actual mold experiment by applying a rapid air cooling system using a vortex tube.