梁系建模方式对弧形钢闸门运行特性的影响

发布时间：2018-06-14 08:20

本文选题：ANSYS + 梁系结构　；参考：《人民黄河》2017年03期

【摘要】：以某水电站溢洪道弧形钢闸门为例,利用ANSYS软件建立弧形钢闸门的两种不同的有限元模型。以闸门开启瞬间为运行工况进行静力学分析和自振分析,比较两种有限元模型主要构件的最大折算应力值及其分布,以及闸门的自振频率和各阶振型图。结果表明:模型2的复核计算较模型1更为安全,两种方式的自振频率差异很小。因此,在闸门分析中应尽可能采用第二种建模方式。
[Abstract]:Taking the arc steel gate of spillway of a hydropower station as an example, two different finite element models of arc steel gate are established by using ANSYS software. Static analysis and natural vibration analysis are carried out under the operating conditions of the gate opening moment. The maximum converted stress values and their distributions of the main components of the two finite element models are compared, as well as the natural vibration frequency and the vibration patterns of each order of the gate. The results show that the checking calculation of model 2 is more secure than that of model 1, and the difference of natural frequencies between the two methods is very small. Therefore, the second modeling method should be used as far as possible in gate analysis.
【作者单位】：河海大学能源与电气学院;福建省水利水电勘测设计研究院;
【分类号】：TV663.4

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