Safety Evaluation of Hinged Pump-Type Water Gate Fixing Device
Han-gukbangjaehakoenonmunjip(2023)
Abstract
In several mountainous areas in Korea, the number of small-scale storage facilities are on the rise. The safety of the opening and closing devices of sluice gates used in storage facilities is important. Recently, during the opening and closing of a water gate that used hydraulic pressure, sagging had occurred owing to the loss of hydraulic pressure over time. To solve the sagging problem of the water gate, a hydraulic loss prevention fixing device is used. The purpose of this study is to induce the safety design of a water gate through a theoretical and numerical review of the safety of a fixing device of the water gate. First, to theoretically secure the stability of the water gate fixing device, the fixing device was simplified and analyzed using the transformed-section method considering its cross-sectional height. In addition, the simplified fixing device assumed the point conditions according to the connection type, and the maximum deflection occurring in the fixing device was calculated considering the cross section conversion under the condition of the load acting on it. Through this structural analysis, the maximum deflection problem and stress generated in the fixing device were confirmed, and the safety of the fixing device was assessed to present its safety standard. The FE numerical analysis performed for comparative verification was interpreted as a condition of linear elasticity of isotropy in the fixing device. Consequently, a safety design method for the pump-type water gate fixing device was presented through the theoretical and numerical verification for securing its safety.
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Key words
pump-type
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