附加质量法在简单竖井结构模态分析中的应用

发布时间：2018-04-30 20:06

本文选题：水力浮动式升船机 + 竖井　；参考：《水运工程》2017年09期

【摘要】：水力式升船机是我国提出的具有自主知识产权、利用水能作为提升动力和安全保障措施的新型垂直升船机形式。针对该型升船机复杂的结构特性,采用先从单筒的简单结构入手,逐渐复杂化几何体的研究思路,用附加质量法对单筒结构进行用户单元布置建模,并开发Python代码,模拟出竖井内不同液面深度时前6阶振型以及频率和特征向量参与系数。通过对前6阶振型不同液面深度时的频率分析,为多筒耦合结构研究奠定基础。
[Abstract]:Hydraulic ship lift is a new type of vertical ship lift which has its own intellectual property rights and uses water energy as its power and safety measures. In view of the complex structural characteristics of this type of ship lift, the simple structure of the single cylinder is first used, and the research idea of gradually complicating the geometry is used to model the user unit layout of the single cylinder structure with the method of additional mass, and the Python code is developed. The first six modes and the participation coefficients of frequency and eigenvector are simulated for different depth of liquid level in the shaft. The frequency analysis of the first 6 modes with different depth of liquid surface lays a foundation for the study of multi-cylinder coupling structures.
【作者单位】：南京水利科学研究院水文水资源与水利工程科学国家重点实验室通航建筑物建设技术交通行业重点实验室;盐城工学院;
【基金】：国家自然科学基金项目(51479123)
【分类号】：U642

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