文档介绍：直齿圆柱齿轮三维建模及有限元分析
摘要:齿轮设计的主要内容之一是强度设计,而强度设计的重点研究对象是轮齿。由于齿轮的几何形状、边界条件和作用载荷都非常复杂,按照传统的方法进行试验研究难度较大,这就要求我们采用新的研究方法来研究和分析齿轮。
本文先通过运用PROE绘图软件,按照图纸绘制直齿圆柱齿轮三维实体模型,利用有限元软件ANSYS的建模功能,建立渐开线标准直齿圆柱齿轮的二维有限元模型,然后运用ANSYS分析软件对静载荷作用下齿轮的齿根应力和齿轮变形进行有限元分析,通过对直齿圆柱齿轮模型进行网格划分、齿轮负载及边界条件的设定,得出齿轮应变分布图及应力分布图。在此基础上,比较二维模型和三维模型的模拟结果,并与传统的齿轮强度计算方法作比较。同时在ANSYS/LS-DYNA程序中研究冲击载荷作用下齿轮的齿根应力随冲击脉冲时间变化的情况。
关键词:直齿圆柱齿轮齿轮有限元强度 ANSYS
Abstract: Strength design is one of the main contents of gear design, and the focus of study for strength designed is the tooth. It is much too difficult to carry on the experimental study by the traditional method for the geometry shape of crank shaft, boundary condition and plicated function load, so a new research technique to study and analyze crankshaft is requested to use.
According to straight toothed spur gear blueprint, PROE cartography software is utilized in this thesis to protract its three dimensional full-scale mockups, useing of finite element software ansys modeling, establish a two-dimensional element model of the standard straight line on the gear. Then apply ansys analysis software for toothed roots stress and gear deformation to the finite element analysis of the gear in a static load .The gear strain distribution map and the stress distribution map are obtained through carrying on the grid division, the gear load and the boundary condition hypothesis to the gear model. On that basis, comparing the simulations of the two models to the three-dimensional model, paring the putation of the strength of gear. At the same time to research the changing satuation that tooth-root stress of gear as the impulse time under the impact loads in the ANSYS/LS-DYNA.
Key word: Spur gear; Finite element; Intensity; ANSYS
目录
摘要 …… I
ABSTRACT(英文摘要) …... II
目录 …. III
第一章引言 …..1
课题的研究背 ……………………….................................................................1
课题的研究现状…………………………………………………………...…..1
课题的主要研究内容及意义………………………………………….....……2
齿轮有限元计算的发展与趋势 ……………