f-500型泥浆泵机架改进前三维
F-500型泥浆泵机架有限元分析
摘要：本文主要是利用三维设计软件UG做出F-500型泥浆泵机架的实体模型，然后对机架的重要部位，如小齿轮轴承座、曲轴轴承座、主墙板、后板、加强筋等进行有限元静态求解及结构模态分析。对主墙板、前后板选用板壳单元PLANE83，曲轴轴承座、小齿轮轴承座等部位使用四面体空间实体单元SOLID187。机架采用Q235材料，弹性模量（EX）为206Mpa，泊松比（PRXY）为0.288。再划分网格得到此模型包括174个面、511条边、339个关键点、104625个节点，56284个单元。通过静态分析得到其应力云图与位移云图，分析云图知最大应力为183.88Mpa，小于许用应力235 Mpa；最大变形为1.6322mm，小于理论最大位移量2.23mm。故模拟分析较保守，即机架的最大应力区也不会发生破坏。通过模态分析机架的前六阶振型图，知振幅最大值为0.36m，位于曲轴轴承座上端，此处刚度最弱。本文拟定以下两个方案：第一增加原加强筋的高度，第二在侧板外侧也焊接加强筋。通过重新建模与模态分析可知，改进后的机架振幅最大值由0.36m变为0.28m，刚度有显着提高。
关键词：F-500泥浆泵机架；有限元；静态分析；模态分析
Fem analysis of F-500 mud pump frame
Abstract: This paper mainly uses the three-dimensional design software UG to make the solid model of the F-500 type mud pump frame, then carries on the finite element static solution and the structural modal analysis to the important parts of the frame, such as the pinion housing, the crankshaft bearing seat, the mainwall plate, the rear plate and the reinforcing rib. The mainwall plate, the front and rear plate are selected by the shell element PLANE83, the crankshaft housing, the pinion housing and other parts use the Tetrahedron Space entity unit SOLID187. The frame adopts Q235 material, the elastic modulus(EX) is 206Mpa, Poisson's ratio(PRXY) is 0.288. The model is divided into 174 faces, 511 edges, 339 key points, 104,625 nodes and 56,284 units. By static analysis, the stress cloud picture and the displacement cloud picture are analyzed, and the maximum stress is 183.88Mpa,which is less than the allowable stress 235 Mpa, the maximum deformation is 1.6322mm, and the maximum displacement is less than 2.23mm. Therefore, the simulation analysis is more conservative, that is, the maximum stresszone of the framewill not be destroyed. Through the modal analysis frame of the first six-ordervibration pattern, the maximum known amplitude is 0.36m, located at the upper end of the crankshaft housing,where the stiffness isweakest. In this paper, the following two programs are proposed: first, increase the height of the original reinforcement, and the second side of the lateral plate alsowelded reinforcing tendons. By means of re modeling and modal analysis, the maximum amplitude of the improved frame is changed from 0.36m to 0.28m, and the strength is improved significantly.
Keywords: F-500 mud pump rack; Finite element; Static analysis; Modal analysis
目录
1绪论1
1.1课题背景及研究的意义1
1.2国内国外的研究现状1
1.2.1国外研究现状1
1.2.2国内研究现状2
1.3课题目的与主要研究内容2
1.3.1研究课题的目的2
1.3.2课题研究的主要内容2
2 F-500泥浆泵机架的受力分析4
2.1介质压力5
2.2摩擦力5
2.3质量力5
2.4输入力距和地基反作用力5
2.5小齿轮轴承反作用力8
3有限元介绍与机架建模10
3.1有限元概述及分析过程10
3.1.1初始设置10
3.1.2前处理10
3.1.3求解运算10
3.1.4后处理11
3.2机架建模11
3.2.1机架结构11
3.2.2题意分析11
3.2.3几何模型简化11
3.2.4三维模型的导入13
3.2.5单元类型的选择13
3.2.6检查模型13
4机架结构静态分析14
4.1机架的网格划分14
4.2轴承座载荷加载15
4.3静态求解17
4.4结果分析22
5机架模态分析24
5.1基本理论24
5.2计算结果24
5.3模态分析振型图26
5.4改进后结构模态分析29
5.5本章小结32
6结论34
参考文献35
致谢36
附录37
f-500型泥浆泵机架总成
目录
摘要
字数
f-500型泥浆泵机架改进后三维
设计所包含文件
