Low-Frequency Reciprocating Fretting Wear Testing System Design and Experiment Research

来源 :Journal of Harbin Institute of Technology | 被引量 : 0次 | 上传用户:fayo
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The fretting wear is resulted from different or same sample’s surfaces by the small variationand leads to mechanism failures. The main factors consist of the variation of normal load and oscillation frequencies,among which surface topography of different materials are the main factors to the problems of the fretting wear.Therefore,a novel low-frequency reciprocating fretting wear test system is designed upon the principle of Friction coefficient measurement. Four metal and non-metallic samples are measured under various normal load and oscillation frequencies to obtain the instantaneous friction coefficient in the repeat experiments. In fact,the experimental results show that Co F curves of different samples with the increase of the normal load are the similar exponential decay or parabolic shapes,which are consistent with the literatures to verify the rational design and reliable-operation of the system under the conditions of different frequencies. The fretting wear is resulted from the small variation and leads to mechanism failures. The main factors consist of the variation of normal load and oscillation frequencies, among which surface topography of different materials are the main factors to the problems of the the fretting wear.Therefore, a novel low-frequency reciprocating fretting wear test system is designed upon the principle of Friction coefficient measurement. Four metal and non-metallic samples are under under normal load and oscillation frequencies to obtain the instantaneous friction coefficient in the repeat experiments, the experimental results show that Co F curves of different samples with the increase of the normal load are the similar exponential decay or parabolic shapes, which are consistent with the literatures to verify the rational design and reliable-operation of the system under the conditions of different frequencies
其他文献
本文通过对荣华二采区10
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
在小学数学教学中,课堂提问是非常重要的.课堂提问可以培养学生的思维能力,可以激发学生学习的主动性,可以让学生主动思考,让他们更好地掌握知识.但是当前的课堂提问还存在着
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
实验研究了两种型号(CJ79L05011和CJ7905011)的商用三端稳压器在不同负载情况下中子辐射效应,得到了输出电压随中子注量的变化曲线.借助三端稳压器的简化模型,分析认为中子辐