微振动载荷下装配接触界面微观形貌演变特性研究  

Microstructure Evolution of Assembly Contact Interface Under Micro-Vibration

作　　者：刘检华[1,2] 倪婧 夏焕雄 张健 敖晓辉 罗俊成 张学睿 付志豪 张慧 LIU Jianhua;NI Jing;XIA Huanxiong;ZHANG Jian;AO Xiaohui;LUO Juncheng;ZHANG Xuerui;FU Zhihao;ZHANG Hui(School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China;Tangshan Research Institute,Beijing Institute of Technology,Tangshan,Hebei 063015,China)

机构地区：[1]北京理工大学机械与车辆学院,北京100094 [2]北京理工大学唐山研究院,河北唐山063015

出　　处：《北京理工大学学报》2025年第2期175-184,共10页Transactions of Beijing Institute of Technology

基　　金：国家重点研发计划项目(2022YFB3403800);国家自然科学基金资助项目(51935003)。

摘　　要：针对微振动载荷作用下装配接触界面状态演变规律不清晰和表征参数不明确等问题,提出了从表面的形貌演变表征接触界面状态变化的实验与分析方法.搭建了模拟法向加载下接触界面切向振动的实验装置,获得了具有不同初始粗糙度的接触表面形貌演变规律,发现了表面轮廓中谷部的空隙体积随着初始粗糙度的增加而显著减少的现象,并分析了描述表面微观形貌在功率谱能量、轮廓高度、面积比例、体积分布以及各向异性特征方面的5大类17种参数与初始表面粗糙度的相关性,确定了表征接触界面微观形貌演变的指标参数.研究结果为接触力学研究和精密产品装配稳定性研究提供了实测数据与分析方法.To address the unclear evolution patterns and undefined characterization parameters of assembly contact interface states under micro-vibration,an experimental and analytical method was proposed to characterize contact interface state changes in the view of surface topography evolution.Firstly,an experimental system was constructed to simulate the tangential vibration of contact interfaces under normal loading,revealing the evolution patterns of contact surface topographies with different initial roughness.Results show that the void volume in the valley areas of the surface profile can significantly decrease with increasing initial roughness.And then,the correlation between initial surface roughness and 17 parameters across five categories was analyzed regarding power of spectral energy,profile height,area ratio,volume distribution,and anisotropic features,identifying key parameters that characterize the micro-topography evolution of contact interfaces.The results can provide empirical data and analytical methods for contact mechanics and precision assembly stability studies.

关 键 词：微振动 接触界面 形貌表征 相关性分析 

分 类 号：TB31[一般工业技术—材料科学与工程]