滚动直线导轨副静刚度仿真及试验分析
本文重点建立了滚动直线导轨副静刚度相关的有限元模型，在此基础上分析影响静刚度的因素，提出改善静刚度的建议。
介绍了理工大学自主研发的SCS3009型滚动直线导轨副静刚度试验台的机械结构、测控软件以及其测量方法。对汉江HJG-DA30CL、广东凯特LGR45AN型导轨副进行了试验，验证了有限元模型的准确性，并对该试验台做出了部分改进建议。
关键词 滚动直线导轨副 额定载荷 静刚度 试验台 载荷特性
毕业论文设计说明书外文摘要
Title LMG’s static rigidity of simulation and experimental analysis
Abstract
The linear motion guide is a precision function part, which has fine movement precision，low abrasion，a long service life, high speed and other characters . Widely used in CNC machine, medical machinery etc. But the gap of the same products at home and abroad in terms of quality, accuracy and life etc. are so large .The structure always refer to foreign products. So it is necessary to research the LMG, so that can improve the performance.
This paper focuses on setting up finite element model and does analysis for what influences static rigidity of LMG, then， draw a conclusion on improving for it.
Summarize the structure, measure and control software and measuring method of the SCS3009 LMG’s test-bed for static rigidity. And do an experiment on DA30CL LMG 、LGR45AN to verify the accuracy of the finite element model.
Keywords Linear rolling guide Rated load Static stiffness Test-bed Load character
目 次
1 绪论 1
1.1 引言 1
1.2 滚动直线导轨副国内外研究概况 2
1.3 滚动直线导轨副静刚度研究概况 4
1.4 论文主要内容 5
2 滚动直线导轨副静刚度有限元模型研究 6
2.1 有限单元法及ANSYS WORKBENCH 15.0软件介绍 6
2.2 ANSYS WORKBENCH 15.0环境下建立有限元模型 7
2.3 仿真验证影响静刚度的因素 14
2.4 提高导轨副静刚度建议 19
3 滚动直线导轨副静刚度试验台概述 20
3.1 国内滚动直线导轨副静刚度试验台发展介绍 20
3.2 南京理工大学SCS 3009型滚动直线导轨副静刚度试验台机介绍 21
3.3 滚动直线导轨副静刚度试验台测控软件 25
3.4 滚动直线导轨副静刚度试验台测量方法 27
4 滚动直线导轨副静刚度仿真与试验的比较 30
4.1 垂直静刚度对比 30
4.2 对比结果分析 31
4.3 对比结论 32
5 滚动直线导轨副静刚度试验台改进方案 33
5.1 加载工装结构的改进 33
5.2 位移传感器装夹结构的改进 35
5.3 避免力持续加载的措施 37
结 论 38