不同开度下深孔平面钢闸门支承约束模拟研究

Simulation Study on Support Restraint of Deep-hole Flat Steel Gate under Different Opening Degrees

摘要:

深孔平面钢闸门的边界条件复杂,其支承约束状态的变化直接影响闸门的安全稳定运行。为研究不同开度下深孔平面钢闸门的支承约束状态,以某高水头深孔平面钢闸门为例,基于ANSYS有限元软件建立了闸门-主轨支承的三维有限元模型和顶、侧水封-止水座板的二维平面应变模型,系统分析了闭门挡水和启闭过程中闸门与门槽的接触特性,揭示了闸门不同开度下定轮、水封的接触应力、压力与接触状态等变化规律。研究成果可为该类闸门工程设计与安全评估提供有力依据。

Abstract:

Deep-hole flat steel gates feature complicated boundary conditions, and variation of support restraint directly affects the safe and stable operation of gates. To investigate the support restraint performance under different gate openings, a high-head deep-hole flat steel gate is taken as the research object. Based on ANSYS finite element software, a 3D finite element model for gate-main track support and a 2D plane strain model for top & side water seal and seal base plate are established. The contact characteristics between gate and gate slot under closed water retaining condition and gate opening-closing process are systematically analyzed, and the variation laws of contact stress, contact pressure and contact state of fixed wheels and water seals at different gate openings are revealed. The research results can provide reliable reference for structural design and safety assessment of similar gate projects.