基于ANSYS Workbench的行星齿轮减速器有限元分析
Finite Element Analysis of Planetary Gear Reducer Based on ANSYS Workbench

行星齿轮减速器凭借其结构紧凑、传动效率卓越等特点，在汽车制造、船舶工业、医疗设备以及航空航天等领域得到了广泛应用。为了进一步提升其稳定性和可靠性，对行星齿轮减速器进行有限元分析显得尤为重要。本研究首先设计了行星齿轮减速器的齿轮尺寸参数，并利用理论公式对齿面和齿根的强度进行了校核。随后，采用三维建模软件UG进行了模型的简化，最后通过ANSYS Workbench平台对其进行了深入的有限元分析。通过施加相应的载荷，获得了行星齿轮减速器的模态振型图、整体寿命云图和等效应力应变分布图。分析结果显示，齿轮表现出良好的刚度特性，最大应力集中于太阳轮的齿根部位，具体数值为201.19 MPa。而与行星轮接触的太阳轮轮齿区域则出现了最大的应变，其最大变形量为0.9731 × 10^？3 m，均符合强度设计标准。
Planetary gear reducers have been widely used in fields such as automotive manufacturing, shipbuilding, medical equipment, and aerospace due to their compact structure and excellent transmission efficiency. In order to further improve its stability and reliability, finite element analysis of planetary gear reducers is particularly important. This study first designed the gear size parameters of the planetary gear reducer and verified the strength of the tooth surface and root using theoretical formulas. Subsequently, the 3D modeling software UG was used to simplify the model, and finally, an in-depth finite element analysis was conducted on it using the ANSYS Workbench platform. By applying corresponding loads, the modal vibration diagram, overall life cloud map and equivalent stress-strain distribution diagram of the planetary gear reducer were obtained. The analysis results show that the gear exhibits good stiffness characteristics, with the maximum stress concentrated at the root of the sun gear, with a specific value of 201.19 MPa. The area of the sun gear teeth that did not come into contact with the planetary gear showed the maximum strain, with a maximum deformation of 0.9731 × 10^？3 m, which meets the strength design standards.