基线方法在测试数据生成中的应用与实现.pdf

摘要
国内装载机驱动桥的轮毂轴承,都是采用国外进口轴承,国产轴承基本不采用,主要原因是强度和寿命难以保证。因此为将其国产化,研究其强度和寿命对降低驱动桥的成本和保证可靠性将具有重要应用价值。
本次研究的课题是ZL50装载机驱动桥轮毂轴承的有限元分析,轮毂轴承的有限元分析的论文工作内容主要包括以下几个方面:
1、了解与轮毂轴承相关的国内外研究现状与研究趋势,准确把握轮毂轴承的各种工作情况。
2、轮毂轴承的结构类型与特点以及在各种工况下的受力分析,然后在以赫兹理论为基础,对轮毂轴承的接触问题和载荷分布情况进行分析。
3、进行轮毂轴承的强度校核计算,这部分通过轮毂轴承的强度计算,来证实所选用的轴承是否满足ZL50装载机的工况需求。
4、基于有限元分析软件ANSYS,通过Pro/E建立所选用的滚动轮毂轴承的三维有限元模型,从半个轮毂轴承和最大滚动体两个情况,分别对轮毂轴承的接触疲劳问题进行了有限元分析,得到两个情况下的应力与分布情况,然后与赫兹理论中计算所得的结果进行比较,发现计算与有限元分析所得结果接近。
关键字:装载机;轮毂轴承;受力分析;强度校核;有限元分析
Abstract
The wheel hub bearing of loader, are all use imported bearing, nearly did not use domestic bearing, the main reason is hard to ensure strength and service life. So we should make it localization, research its strength and life to reduce the cost and ensure reliability of the drive axle will has important application value.
The research topic is loader ZL50 wheel drive axle bearing finite element analysis, finite element analysis of wheel bearings, in the following ways:
1, understanding the issues related to research status, accurately grasp the wheel bearings work environment.
2, the wheel bearings and its structure features and the stress analysis under the the kinds if working condition, then based on hertz theory for the contact problem and wheel bearing load distribution analysis.
3, Strength check calculation of wheel hub bearing, this section through the wheel hub bearing strength calculation, to confirm the selected bearing whether meet the demand of working condition of ZL50 loader.
4, based on finite element analysis software ANSYS, Through the Pro/E set up using a 3d finite element model of rolling wheel hub bearing, from half a wheel hub bearing and two roller, respectively contact fatigue of wheel hub bearing is carried on the finite element analysis, get two cases of stress and the distribution, and pared with Hertz puting result and found the calculation with the finite element analysis results.
Key words: loader; Wheel bearings; Force analysis; Stren