摘要
为了确保某水库溢洪道露顶式弧形闸门在各工况下稳定运行以及实现闸门的结构健康监测,结合相关标准分析弧形闸门的静动态应力及变形情况,对露顶式弧形闸门不同运行工况进行研究。采用有限元仿真的方法,分别运用静力学仿真和流固耦合仿真分析计算0~6.5 m水深及0~6 m开度工况下露顶式弧形闸门的应力变形情况;并在现场进行测量试验,在弧形闸门上布置应力传感器,测量在1.4 m水深下弧形闸门在静止和启闭过程的静动态应力。结果表明:弧形闸门面板等效应力值在闸门6.5 m水深下启门瞬间达到最大值,为148.71 MPa;弧形闸门除面板外其他部位等效应力在闸门开度为6 m时达到最大值,为207.63 MPa;弧形闸门主、次梁的总变形量均在闸门6.5 m水深下启门瞬间达到最大值,分别为8.46、8.65 mm。仿真分析结果和传感器测量结果两者的误差在20%以内。
In order to check and realize the structural health monitoring of the emersed radial gate in the spillway of a reservoir, the different operating conditions of the emersed radial gate were studied, and the static and dynamic stress and deformation of the emersed radial gate under opening and closing conditions were analyzed in combination with relevant standards. The stress and deformation of the emersed radial gate under the conditions of 0-6.5 m water depth and 0-6 m opening were analyzed and calculated by numerical simulation method. The stress sensor was arranged on the radial gate to measure the static and dynamic stress of the radial gate in the static and opening and closing process under the water depth of 1.4 m. The results show that the equivalent stress value of the radial gate panel reaches the maximum value at the moment when the gate is opened in 6.5 m water depth, and the maximum equivalent stress value is 148.71 MPa. The effect of the radial gate except the panel reaches the maximum value when the gate opening is 6 m, and its maximum value is 207.63 MPa. The main and secondary beams of the radial gate reach their maximum values at the moment when the gate is opened in the water depth of 6.5 m. The maximum total deformation of the main beam is 8.46 mm and the maximum deformation of the secondary beam is 8.65 mm. Combined with the results of simulation analysis and the measured data of the sensor, the error between the two is within 20%.
作者
张聪
张钰奇
王童童
王茂
赵华东
李松涛
ZHANG Cong;ZHANG Yuqi;WANG Tongtong;WANG Mao;ZHAO Huadong;LI Songtao(College of Mechanical and Power Engineering,Zhengzhou University,Zhengzhou 450001,China;Intelligent Manufacturing Research Institute of Henan Province,Zhengzhou 450001,China;Xuchang Electromechanical Vocational College,Xuchang 461000,China)
出处
《人民黄河》
CAS
北大核心
2023年第3期151-155,160,共6页
Yellow River
基金
国家工信部智能制造综合标准化与新模式应用项目(2018037)
河南省水利厅水利科技攻关项目(GG202068)。
关键词
弧形闸门
有限元仿真
数值分析
静动态应力
流固耦合
结构健康监测
radial gate
finite element analysis
numerical analysis
static and dynamic stress
fluid-solid coupling
structural health monitoring
作者简介
张聪(1996-),男,湖北黄冈人,硕士,研究方向为水工钢结构健康监测技术;通信作者:李松涛(1980-),男,河南许昌人,副教授,博士,研究方向为机电控制和机电职业教育,E⁃mail:2734867910@qq.com。
