李玲,李港华,吕刚,史小辉,阮晓光.双粗糙表面的微动磨损行为研究[J].表面技术,2022,51(2):193-201.
LI Ling,LI Gang-hua,LYU Gang,SHI Xiao-hui,RUAN Xiao-guang.Research on Fretting Wear Behaviour of Double Rough Surface[J].Surface Technology,2022,51(2):193-201
双粗糙表面的微动磨损行为研究
Research on Fretting Wear Behaviour of Double Rough Surface
投稿时间:2021-03-08  修订日期:2021-06-09
DOI:10.16490/j.cnki.issn.1001-3660.2022.02.018
中文关键词:  微动磨损  粗糙表面  表面粗糙度  材料刚性  振动频率
英文关键词:fretting wear  rough surface  surface roughness  material rigidity  vibration frequency
基金项目:国家自然科学基金(51975449);陕西省重点研发计划(2021GY-309)
作者单位
李玲 西安建筑科技大学 机电工程学院,西安 710055 
李港华 西安建筑科技大学 机电工程学院,西安 710055 
吕刚 西安建筑科技大学 机电工程学院,西安 710055 
史小辉 西安建筑科技大学 机电工程学院,西安 710055 
阮晓光 西安建筑科技大学 机电工程学院,西安 710055 
AuthorInstitution
LI Ling School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an 710055, China 
LI Gang-hua School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an 710055, China 
LYU Gang School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an 710055, China 
SHI Xiao-hui School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an 710055, China 
RUAN Xiao-guang School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi’an 710055, China 
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中文摘要:
      目的 建立符合实际情况的粗糙表面微动磨损模型,准确揭示连接结构的磨损机理。方法 利用ABAQUS有限元软件中的UMESHMOTION子程序和能量耗散模型,建立粗糙表面的微动磨损模型,并探究不同表面粗糙度、材料和振动频率对粗糙表面微动磨损的影响。结果 在外部载荷、振动频率和材料相同的情况下,下试件表面粗糙度为0.2 μm的磨损深度最小,0.8 μm的磨损深度最大,0.5 μm的磨损深度处于二者之间。当外部载荷、振动频率和表面粗糙度相同时,上试件材料为HT200的磨损深度最小,合金钢的磨损深度最大。当外部载荷、表面粗糙度和材料一定时,振动频率为1 Hz的磨损深度最小;频率增加到20 Hz时,磨损深度达到最大;增加到25 Hz时,磨损深度呈现减小趋势。结论 粗糙模型的接触压力和磨损深度分布具有离散性。粗糙模型能反映磨损的实际接触面积,使得有限元模拟的表面接触和磨损情况更加准确。表面粗糙度和材料刚性的增大,使粗糙表面模型的磨损深度明显增大,而振动频率增大,使磨损量先增大、后减小,频率为20 Hz时的磨损量最大。
英文摘要:
      This paper is to establish a fretting wear model of rough surface in line with the actual situation to accurately reveal the wear mechanism of the connection structure. The UMESHMOTION subroutine in the ABAQUS finite element software and the energy dissipation model are used to establish a fretting wear model of rough surfaces and to explore the effects of different surface roughness, materials and vibration frequencies on the fretting wear of rough surfaces. Under the same external load, vibration frequency and material, the wear depth of the lower specimen with a surface roughness of 0.2 μm is the smallest, the wear depth of 0.8 μm is the largest, and the wear depth of 0.5 μm is between the two. When the external load, vibration frequency and surface roughness are the same, the upper specimen material of HT200 has the smallest wear depth and the alloy steel has the largest wear depth. When the external load, surface roughness and material are certain, the wear depth is the smallest when the vibration frequency is 1 Hz; when the frequency increases to 20 Hz, the wear depth reaches the maximum; when it increases to 25 Hz, the wear depth shows a decreasing trend. The results show that the rough model has a discrete contact pressure and wear depth distribution. The rough model can reflect the actual contact area of wear, making the finite element simulation of surface contact and wear more accurate. The increase in surface roughness and material rigidity caused a significant increase in the wear depth of the rough surface model, while the increase in vibration frequency causes the wear amount to increase first and then decrease, with the maximum wear amount at a frequency of 20 Hz.
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