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滚动联轴器设计理论及参数化设计研究

发布时间:2018-05-04 15:18

  本文选题:滚动联轴器 + 有限元分析 ; 参考:《中南大学》2012年硕士论文


【摘要】:滚动联轴器是国家科技攻关项目研究中开发的一项专利技术,其结构形式独特、传动性能良好,是一种先进的挠性联轴器。目前滚动联轴器的设计理论研究还不完善,其力学性能及传动特性受其结构参数、不对中等因素的影响规律尚不明确。基于此,本文对滚动联轴器进行了力学分析、不对中传动特性分析及参数化设计研究,最终为滚动联轴器的设计、分析及应用提供有价值的理论依据。论文主要研究工作如下: 首先根据Hertz理论,建立滚动体与滚道的接触力模型,给出滚动体与滚道弹性接触应力和弹性变形的理论计算方法,在此基础上对其接触强度进行分析,揭示了工作转速、滚动体和滚道的结构参数对其接触强度的影响规律。采用Ansys软件建立半联轴器有限元分析模型,对其在额定载荷下的应力情况进行计算分析,得到了不同转速、键槽位置及半联轴器结构尺寸对其应力的影响规律,为滚动联轴器的强度设计提供理论依据。 然后采用耦合矩阵法,建立滚动联轴器的作用力数学模型,结合集总参数法,建立滚动联轴器—转子系统不对中振动方程并求解,分析揭示了传动扭矩、工作转速及不对中量等对滚动联轴器传动特性的影响规律,为滚动联轴器的不对中传动分析提供理论支撑。 在上述研究基础上,根据滚动联轴器的结构特性、尺寸关系及力学特性,联合Matlab和Ansys APDL参数化设计语言对滚动联轴器进行参数化设计,开发了滚动联轴器的参数化设计软件,为滚动联轴器的设计、分析及应用提供高效地设计分析工具。 最后,采用电测法,对滚动联轴器在模拟额定载荷条件下进行应变测量,通过对比分析实验值和仿真结果,验证了有限元仿真分析结果的正确性。 本文的研究成果对提升滚动联轴器的设计水平,缩短滚动联轴器的设计周期,具有重要的理论指导意义和工程应用价值。
[Abstract]:Rolling coupling is a patent technology developed in the research of national science and technology research project. Its structure form is unique and its transmission performance is good. It is an advanced flexible coupling. At present, the design theory of rolling coupling is not perfect, its mechanical properties and transmission characteristics are affected by its structural parameters, and the law of influence on medium factors is not clear. Based on this, the mechanical analysis of rolling coupling is carried out in this paper, which provides a valuable theoretical basis for the design, analysis and application of rolling coupling. The main research work of this thesis is as follows: According to Hertz theory, the contact force model of rolling body and raceway is established, and the theoretical calculation method of elastic contact stress and elastic deformation between rolling body and raceway is given. On this basis, the contact strength is analyzed and the working speed is revealed. The influence of the structure parameters of rolling body and raceway on its contact strength. The finite element analysis model of semi-coupling is established by using Ansys software. The stress of semi-coupling under rated load is calculated and analyzed. The influence of different rotational speed, keyway position and structural size of semi-coupling on the stress is obtained. It provides theoretical basis for strength design of rolling coupling. Then the coupling matrix method is used to establish the mathematical model of the force acting on the rolling coupling, and combined with the lumped parameter method, the misalignment vibration equation of the rolling coupling rotor system is established and solved, and the transmission torque is analyzed and revealed. The influence of the working speed and misalignment on the transmission characteristics of the rolling coupling provides theoretical support for the analysis of the misalignment drive of the rolling coupling. On the basis of the above research, according to the structure characteristic, dimension relation and mechanical characteristic of rolling coupling, the parametric design software of rolling coupling is developed by combining Matlab and Ansys APDL parametric design language. To provide an efficient design and analysis tool for the design, analysis and application of the rolling coupling. Finally, the strain of the rolling coupling under the condition of simulated rated load is measured by the electric measurement method. The correctness of the finite element simulation analysis results is verified by comparing and analyzing the experimental values and the simulation results. The research results in this paper are of great theoretical significance and engineering application value in improving the design level of rolling coupling and shortening the design period of rolling coupling.
【学位授予单位】:中南大学
【学位级别】:硕士
【学位授予年份】:2012
【分类号】:TH133.4

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