一种新型汇流环装置的接触应力与动态特性分析

发布时间：2018-04-26 05:22

本文选题：汇流环 + 有限元　；参考：《机械设计与制造》2017年07期

【摘要】：针对一种新型大功率滚动式汇流环装置,利用三维软件Solidworks中进行参数化建模,然后导入有限元软件Ansys Workbench后进行静力学分析,得到了内、外环上接触应力的分布情况;在此基础上,利用Response Surface Optimization模块来分析联结器半径的变化对接触区域应力的影响,得出了接触应力与联结器半径值之间的变化关系。然后对汇流环装置进行模态分析,得到汇流环装置的一到六阶固有频率和振型,在模态分析基础上对其进行谐响应分析,得出联结器在X,Y,Z轴方向的位移响应曲线。结果表明:汇流环装置的各阶固有频率均小于工作频率,激振力频率与汇流环装置的5、6阶固有频率接近时,联结器容易发生共振。该汇流环装置结构具有较好的动态特性,验证了汇流环装置结构设计的合理性,为汇流环装置结构的优化设计提供了理论依据。
[Abstract]:For a new type of high-power rolling confluence ring, parametric modeling is carried out by using three-dimensional software Solidworks, and then the static analysis is carried out by introducing the finite element software Ansys Workbench, and the distribution of contact stress on the inner and outer ring is obtained. On this basis, Response Surface Optimization module is used to analyze the influence of the radius of the coupling on the stress in the contact region, and the relationship between the contact stress and the radius of the coupler is obtained. Then the modal analysis of the confluence ring device is carried out, and the first to sixth order natural frequencies and modes of the confluence ring device are obtained. Based on the modal analysis, the harmonic response analysis is carried out, and the displacement response curve of the coupler in the direction of the XAY Z axis is obtained. The results show that the natural frequencies of each order of the confluence ring are smaller than the operating frequency. When the exciting force frequency is close to the 5 ~ 6 order natural frequency of the confluence ring, the coupler is prone to resonance. The structure of the confluence ring has better dynamic characteristics, which verifies the rationality of the structural design of the confluence ring, and provides a theoretical basis for the optimization design of the confluence ring structure.
【作者单位】：中北大学机械与动力工程学院;
【基金】：国家自然科学基金资助项目(51275486)
【分类号】：O327;O342

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