钢玄武岩纤维树脂混凝土结合面法向接触刚度数值计算研究  

Research on Numerical Calculation of Normal Contact Stiffness of Steel-BFPC Joint Surfaces

作　　者：徐平[1] 徐戍廷 沈佳兴[1,2] 于英华[1] XU Ping;XU Shuting;SHEN Jiaxing;YU Yinghua(School of Mechanical Engineering,Liaoning Technical University,Fuxin,Liaoning,123000;Research Institute of Technology and Equipment for the Exploitation and Utilization of Mineral Resources,Liaoning Technical University,Fuxin,Liaoning,123000)

机构地区：[1]辽宁工程技术大学机械工程学院,阜新123000 [2]辽宁工程技术大学矿产资源开发利用技术及装备研究院,阜新123000

出　　处：《中国机械工程》2022年第7期818-824,共7页China Mechanical Engineering

基　　金：国家自然科学基金(52005238,51375219);辽宁省教育厅项目(LJ2019JL030);辽宁省博士科研启动基金(2020-BS-256)。

摘　　要：为解决分形接触理论中最大接触面积难以准确计算导致结合面实际接触面积难以有效获取的问题,基于离散化数值计算方法建立了一种结合面实际接触面积的计算方法,并将该方法与结合面接触刚度理论模型相结合,建立了一种新的钢玄武岩纤维树脂混凝土(BFPC)结合面接触刚度计算方法。通过模态实验对五种预载荷下的钢BFPC结合面组件的接触刚度进行了测量,将实验结果与理论计算结果对比分析,确定了二者的相对误差均小于6.0%。In order to solve the problems that the maximum contact area in fractal contact theory was difficult to calculate accurately,which would lead to the difficulty in obtaining actual contact area of joint surfaces effectively,a calculation method for actual contact area of joint surfaces was established based on discrete numerical calculation method,and a new calculation method for contact stiffness of steel-BFPC joint surfaces was established by combining the method with the theoretical contact stiffness model of joint surfaces.The contact stiffnesses of steel-BFPC joint surfaces components under five kinds of preloads were measured through modal experiments.Experimental results were compared with the theoretical calculation ones,and the relative errors between them are less than 6.0%.

关 键 词：钢玄武岩纤维树脂混凝土结合面 离散法 实际接触面积 接触刚度 分形接触理论 

分 类 号：TP123[自动化与计算机技术—控制理论与控制工程]