基于离散方法的钢-BFPC结合面接触性能虚拟材料仿真研究  

VIRTUAL MATERIAL SIMULATION OF CONTACT PROPERTIES OF STEEL-BFPC JOINT SURFACE BASED ON DISCRETE PRINCIPLE

作　　者：沈佳兴[1,2] 陈宇[2] 徐平[2] 于英华[2] SHEN Jia-xing;CHEN Yu;XU Ping;YU Ying-hua(Research Institute of Technology and Equipment for the Exploitation and Utilization of Mineral Resources,Liaoning Technical University,Fuxin,Liaoning 123000,China;School of Mechanical Engineering,Liaoning Technical University,Fuxin,Liaoning 123000,China)

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

出　　处：《工程力学》2023年第4期205-214,共10页Engineering Mechanics

基　　金：国家自然科学基金项目(52005238,51375219);辽宁省教育厅项目(LJ2019JL030);辽宁省科技厅博士启动基金项目(2020-BS-256)。

摘　　要：为准确计算钢-BFPC结合面的实际接触面积比进而建立基于离散方法的钢-BFPC结合面接触性能虚拟材料仿真方法。通过对结合面接触拓片离散化处理建立钢-BFPC结合面实际接触面积比的计算方法,编制了相应的计算程序,分析不同结合面压力对实际接触面积比的影响规律。以计算的实际接触面积比为基础,建立了钢-BFPC结合面虚拟材料仿真分析模型。分别通过虚拟材料仿真和实验研究了钢-BFPC结合面试件模态特性并将两种方式结果对比分析,结果显示两者的固有频率最大相对误差为+6.48%且振型一致,证明了钢-BFPC结合面实际接触面积比的离散计算方法和虚拟材料仿真方法的准确性。In order to accurately calculate the actual contact area ratio of the steel-BFPC joint surface,a virtual material simulation method for the contact performance of the steel-BFPC joint surface based on discrete method was established.The calculation method of the actual contact area ratio of the steel-BFPC joint surface was established by discretizing the contact rubbings of the joint surface,and the corresponding calculation program was compiled to analyze the influence law of different joint surface pressure on actual contact area ratio.Based on the calculated actual contact area ratio,a virtual material simulation analysis model of the steel-BFPC joint surface was established.Through virtual material simulation and experiment,the modal characteristics of steel-BFPC joint surface piece were studied respectively,and the results of the two methods were compared and analyzed.The results show that the maximum relative error between the natural frequency of the two is+6.48%and the vibration mode is consistent.The accuracy of the discrete calculation method of the actual contact area ratio of the steel-BFPC joint surface and the virtual material simulation method has been proved.

关 键 词：离散方法 钢-BFPC结合面 实际接触面积比 接触性能 虚拟材料 

分 类 号：O34[理学—固体力学] TH113[理学—力学]