气动盾形闸门系统静力特性分析

发布时间：2018-02-03 01:02

本文关键词： 气动盾形闸门系统 ABAQUS 有限元法静力特性　出处：《长春工程学院》2017年硕士论文　论文类型：学位论文

【摘要】：随着国家对生态环境保护的重视,河流治理和城市生态水系工程的迅速发展,有利于城市环境生态的设计新颖、造型独特的新型闸坝的设计与研究已成为城市水利工程的一个重要研究方向。本文以吉林省松花湖湖滨人工湿地气动盾形闸门工程项目为背景,开展6 m气动盾形闸门系统的静力特性分析研究。论文的主要研究内容如下:1.对比分析了橡胶坝、钢坝闸、液压坝和气动盾形闸门等新型挡水建筑物在工程应用中的优缺点,表明气动盾形闸门系统比较适合在城市生态河道景观工程中应用。2.应用材料力学原理,结合气动盾形闸门系统的力学特点,建立气动盾形闸门系统的力学模型,推导了双橡胶气袋充气压力计算公式和闸门系统主要结构的应力计算公式,并用公式计算了闸门系统的门体结构、气袋结构、锚固结构等主要结构的应力。3.采用ABAQUS软件对气动盾形闸门系统建立三维有限元模型,模型考虑了门体结构、气袋结构和橡胶铰链间接触非线性,比较接近系统的实际工作状态。4.应用ABAQUS软件对气动盾形闸门系统工作状态进行数值模拟,在下游无水条件下,分析了蓄水状态上游挡水深度6 m和溢流状态过水水深0.5 m两种工况,气动盾形闸门系统的门体结构、气袋结构、锚固结构的应力、位移分布规律。本文研究结果对气动盾形闸门系统主要结构的设计和施工以及完建工程运行管理具有一定参考价值。
[Abstract]:With the attention of the country to the protection of the ecological environment, the rapid development of river management and urban ecological water system project is conducive to the novel design of urban environmental ecology. The design and research of a new type of gate dam with unique shape has become an important research direction of urban water conservancy engineering. This paper takes the project of pneumatic shield gate on the constructed wetland of Songhua Lake in Jilin Province as the background. The static characteristics of 6 m pneumatic shield gate system are studied. The main contents of this paper are as follows: 1. The rubber dam and steel dam are compared and analyzed. The advantages and disadvantages of new water retaining structures such as hydraulic dams and pneumatic shield gates show that the pneumatic shield gate system is more suitable for application in urban ecological river landscape engineering. 2. Apply the principle of material mechanics. According to the mechanical characteristics of the pneumatic shield gate system, the mechanical model of the pneumatic shield gate system is established, and the formula for calculating the inflatable pressure of the double rubber air bag and the stress calculation formula for the main structure of the gate system are derived. The stress of the gate structure, air bag structure, anchor structure and other main structures of the gate system are calculated with the formula. The three-dimensional finite element model of the pneumatic shield gate system is established by using ABAQUS software. The nonlinear contact between the door structure, air bag structure and rubber hinge is considered in the model. ABAQUS software is used to simulate the working state of pneumatic shield gate system under the condition of anhydrous downstream. In this paper, the stress of the gate structure, air bag structure and anchoring structure of the pneumatic shield gate system under two working conditions of upstream water retaining depth of 6 m and overflow state of 0.5 m are analyzed. The results of this paper have certain reference value for the design and construction of the main structure of the pneumatic shield gate system and the operation management of the completed project.
【学位授予单位】：长春工程学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TV663;TV311

【相似文献】