CHC型少齿差减速器动力学特性研究与仿真

发布时间：2018-05-06 18:03

本文选题：少齿差传动 + 动力学建模　；参考：《武汉理工大学》2012年硕士论文

【摘要】：CHC型少齿差减速器是一种新型行星齿轮传动装置,由于具有传动比大、荷重比大、结构紧凑及效率高等诸多优点,现已逐渐开始应用于工程水利、起重机械与港口船舶等工业领域,具有广阔的市场发展空间。 CHC型少齿差减速器设计计算由于缺乏相应的国家标准,导致一些关键设计参数缺乏理论依据。本文以研究系统动力学性能为主要目的,建立CHC型少齿差减速器传动系统的动力学模型,并借助仿真软件ADAMS与ANSYS分别对整机和关键部件内齿板进行动力学分析,以期获得提高该传动设计的有效方法。 1.计入偏心输入轴的弯曲变形、内齿板的拉压变形、行星轴承的变形,建立该类型少齿差传动动力学模型。 2.在Pro/E平台下进行三维参数化建模及虚拟装配过程,运用Pro/E软件自身强大的参数化功能实现齿轮类零件的参数化建模；完成了CHC型少齿差减速器整机三维模型的建立与装配,为建立虚拟样机模型及有限元模型奠定了基础。 3.以多体系统动力学理论为依据,以ADAMS为主要手段,通过Pro/E已经建立起来的CHC型少齿差减速器三维模型,并结合MECH/pro接口把三维模型导入ADAMS,建立起CHC型少齿差减速器的虚拟样机,然后对其进行动力学特性分析仿真。 4.对少齿差传动的关键部件内齿板进行模态分析。以有限元分析软件ANSYS作为计算工具,对内齿板的振动问题进行研究。利用ANSYS对内齿板进行模态分析得出各阶的固有频率和模态振型,对内齿板的设计时避免其发生共振提供参考,为进一步进行CHC型少齿差减速器其他类型的动力学分析提供依据。通过对CHC型少齿差减速器理论建模、CAD三维建模以及仿真获得的数据和结论,对物理样机的生产和制造具有一定的参考价值。本文的研究结果还可以为其他同类型不同型号的产品的设计和分析提供借鉴与参考。
[Abstract]:CHC type gear reducer with small tooth difference is a new type of planetary gear transmission device. Because of its advantages of large transmission ratio, large load ratio, compact structure and high efficiency, CHC reducer has been gradually applied to engineering water conservancy. Lifting machinery and port ships and other industrial areas, with broad market development space. The design and calculation of CHC reducer with small tooth difference is lack of relevant national standard, which leads to the lack of theoretical basis for some key design parameters. In order to study the dynamic performance of the system, the dynamic model of the transmission system of the CHC type reducer with small tooth difference is established in this paper. The dynamic analysis of the whole machine and the inner gear plate of the key parts is carried out with the help of the simulation software ADAMS and ANSYS, respectively. In order to obtain an effective method to improve the transmission design. 1. Taking into account the bending deformation of the eccentric input shaft, the tension and compression deformation of the inner tooth plate and the deformation of the planetary bearing, the dynamic model of this type of transmission with less tooth difference is established. 2. In the process of 3D parametric modeling and virtual assembly based on Pro/E platform, using the powerful parameterized function of Pro/E software to realize parametric modeling of gear parts, the establishment and assembly of 3D model of CHC reducer with small tooth difference are completed. It lays a foundation for the establishment of virtual prototype model and finite element model. 3. Based on the theory of multi-body system dynamics and ADAMS, the three-dimension model of CHC reducer with small tooth difference has been established by Pro/E, and the 3D model is imported into Adams with MECH/pro interface, and the virtual prototype of CHC reducer with small tooth difference is established. Then the dynamic characteristics are analyzed and simulated. 4. The modal analysis of the internal tooth plate, the key component of the small tooth difference transmission, is carried out. The finite element analysis software ANSYS is used to study the vibration of the inner plate. The natural frequencies and modal modes of each order are obtained by means of modal analysis of inner gear plate by ANSYS, which provides a reference for the design of internal tooth plate to avoid resonance, and provides the basis for further dynamic analysis of other types of CHC reducer with less tooth difference. The data and conclusions obtained from the theoretical modeling and simulation of CHC reducer with small tooth difference have a certain reference value for the production and manufacture of physical prototype. The results of this paper can also be used for reference in the design and analysis of other products of the same type and different types.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.46

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