一种山形自闭式水封的有限元仿真设计  

Finite Element Simulation Design of a Mountain Type Self⁃Closing Water Seal

作　　者：杨斌[1,2] 周雨微 王中发[2] 刘礼华[1] YANG Bin;ZHOU Yuwei;WANG Zhongfa;LIU Lihua(School of Civil&Architectural Engineering,Wuhan University,Wuhan 430072,China;Hubei Water Resources Technical College,Wuhan 430070,China)

机构地区：[1]武汉大学土木建筑工程学院,湖北武汉430072 [2]湖北水利水电职业技术学院,湖北武汉430070

出　　处：《人民黄河》2022年第1期120-123,共4页Yellow River

基　　金：国家自然科学基金资助项目(50679059)。

摘　　要：充压伸缩式水封的机械加压方式带来闸门结构复杂和不耐久的缺点,为克服这一缺点,设计了一种依靠水封自身大变形主动封水的山形自闭式水封。该山形水封设计的关键是在设计阶段对各种工况下水封的变形进行准确预计。基于水封橡胶材料的非线性张量本构关系、几何大变形的非线性特征、接触非线性特征、连续介质基本计算原理对某山形自闭式水封进行了仿真计算,论述了山形自闭式水封的封水原理、封水规律和封水有效水头。该山形自闭式水封的应用,可大大削减闸门充压水封装置的建造成本,便于工程维护,耐久性较好,具有较大的推广价值。The mechanical pressure mode of pressure expansion water seal brings the shortcomings ofcomplexity and non⁃durability of gate structure.In order to overcome these disadvantages,a kind of mountain type self⁃closing water seal which relied on the large deformation of it⁃self to seal water was innovated.The key to the design of the mountain type water seal was to accurately predict the deformation of the water seal under various working conditions in the design stage.Based on the nonlinear tensor constitutive relation of water seal rubber material,the nonlinear characteristics of geometric large deformation,the contact nonlinear characteristics and the basic calculation principle of continuous medium,the simulation calculation of a mountain type self⁃closing water seal was carried out.The water sealing principle,water sealing law and effective water head to sealing water of mountain type self⁃closing water seal were discussed.The establishment of the type water seal can greatly reduce the construction cost of gate filling water seal device,facilitate engineering maintenance,improve durability and has great ap⁃plication value.

关 键 词：山形自闭式水封 张量 库水压力 背压 仿真计算 封头接触应力 

分 类 号：TV131.6[水利工程—水力学及河流动力学]