【摘 要】
：
根据有限条法原理,把渡槽槽身划分为若干有限条,推导出渡槽槽身结构的单元刚度矩阵、质量矩阵的显示表达式;采用空间梁单元模拟渡槽支架;联接槽身和支架的盆式橡胶支座采用弹
【机 构】
：
郑州市水利建筑勘测设计院,河南科源水利建设工程检测有限公司,
论文部分内容阅读
根据有限条法原理,把渡槽槽身划分为若干有限条,推导出渡槽槽身结构的单元刚度矩阵、质量矩阵的显示表达式;采用空间梁单元模拟渡槽支架;联接槽身和支架的盆式橡胶支座采用弹性元件单元模拟。编写程序具体计算了某大型渡槽的自振频率,并用ansys对大型渡槽进行模态分析,对比计算结果验证本文模型的正确性。并分3种工况对大型渡槽结构自振特性进行分析。
According to the principle of finite strip method, the aqueduct body is divided into several finite strips, and the unit stiffness matrix and the mass matrix expression of the aqueduct body structure are deduced. The spatial beam element is used to simulate the aqueduct bracket. Rubber bearings using elastic element unit simulation. Compile the program to calculate the natural frequency of a large aqueduct and use ansys to analyze the modal analysis of the large aqueduct. The calculation results verify the correctness of the model. The vibration characteristics of large-scale aqueduct structures are analyzed in three kinds of working conditions.
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