• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2021년도 추계학술대회
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• pp.101-103
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• 2021

전 세계적으로 수출입 화물이 급격하게 늘어나면서 기업들은 창고의 효율성 증가와 창고 인력 감소로 인해 무인 자동화창고에 대한 관심과 연구개발이 증가하고 있다. 소규모 창고에서는 재고의 흐름을 유동적으로 할 수 있는 셔틀랙 기반의 레이아웃이 빈번하게 존재한다. 그러나 셔틀랙 기반의 물류센터는 비상상황(고장, 정전 등)에서 셔틀이 작동하지 않아 물류센터 효율성과 재고관리에 심각한 영향을 미치고 있다. 이에 셔틀랙 기반의 물류센터에서 다양한 셔틀의 통로와 RTV의 통로를 레이아웃별로 분류하고 특성과 유형을 분석하여 각 레이아웃별로 신뢰성을 도출하였다. 통로의 개수에 따라 적재율도 다르게 도출되어 각 레이아웃별로 신뢰성과 적재율을 비교 분석하였다.

• 유공압시스템학회논문집
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• 제6권2호
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• pp.14-21
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• 2009

The typical hydraulic hoisting system of the rack-bar type sluice gate is composed of a hydraulic supply unit using an uni-directional pump, a direction control valve, a hydraulic motor, a counter balance valve, and flow control valves. Here, the hydrostatic transmission is applied to the hoisting system of rack-bar type sluice gate to simplify the operation of gate such that the upward and downward direction of gate is simply controlled by the direction of pump rotation. The new hydraulic hoisting system is composed of a bi-directional pump, a hydraulic motor, two counter balance valves, two check valves, two pilot-operated check valves, two relief valves and a shuttle valve. The characteristics of a suggested system are analyzed by computer simulations.

• 유공압시스템학회논문집
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• 제7권4호
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• pp.15-22
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• 2010

The typical hydraulic hoisting system of the rack-bar type sluice gate is composed of a hydraulic supply unit using an uni-directional pump, a direction control valve, a hydraulic motor, a counter balance valve, and flow control valves. Here, the hydrostatic transmission is applied to the hoisting system of rack-bar type sluice gate to simplify the operation of gate such that the upward and downward direction of gate is simply controlled by the direction of pump rotation. The new hydraulic hoisting system is composed of a bi-directional pump, a hydraulic motor, a counter balance valve, two check valves, two pilot-operated check valves, two relief valves and a shuttle valve. The characteristics of a suggested system are analyzed by computer simulations and experiments.

• 유공압시스템학회:학술대회논문집
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• 유공압시스템학회 2010년도 춘계학술대회
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• pp.86-92
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• 2010

The typical hydraulic hoisting system of the rack-bar type sluice gate is composed of a hydraulic supply unit using an uni-directional pump, a direction control valve, a hydraulic motor, a counter balance valve, and flow control valves. Here, the hydrostatic transmission is applied to the hoisting system of rack-bar type sluice gate to simplify the operation of gate such that the upward and downward direction of gate is simply controlled by the direction of pump rotation. The new hydraulic hoisting system is composed of a bi-directional pump, a hydraulic motor, a counter balance valve, two check valves, two pilot-operated check valves, two relief valves and a shuttle valve. The characteristics of a suggested system are analyzed by computer simulations and experiments.