微动工况下柱面不同因素对平面磨损显著性的分析
2019-01-16
作者：张慧杰1，王志敏2，张太华3
单位：1贵州大学现代制造技术教育部重点实验室；2淮阳县大连乡育才中学；3贵州师范大学
摘要：为了研究二维柱面不同参数对平面磨损形貌的影响，基于改进的Archard磨损方程，建立二维柱面—平面微动磨损模型，并通过对比Hertz接触理论，验证了有限元模型的正确性。运用正交试验技术设计试验方案，对在不同因素下平面的磨损轮廓进行了数值模拟，并分别从平面的磨损宽度和磨损深度分析了柱面半径、柱面材料弹性模量、泊松比三个参数对平面磨损轮廓的影响。对平面磨损轮廓的影响因素显著性分析表明：柱面材料的弹性模量最大，柱面半径次之，柱面材料的泊松比最小。
关键词：微动磨损；数值模拟；正交实验设计；有限元
中图分类号：TG156；TH161文献标志码：ADOI：10.3969/j.issn.1000-7008.2019.01.009
Analysis of Significance of Different Factors on Flat Wear
under Mircomotion Conditions
Zhang Huijie，Wang Zhimin，Zhang Taihua
Abstract:Based on the improved Archard equation of wear，twodimensional rigid cylindrical and inplane fretting wear models are established.The plane wear profile is numerically simulated by the rigidplastic finite element method.The effects of rigid cylindrical radius，cylindrical elastic modulus and poisson’s ratio on the plane wear profile are analyzed，taking the wear width and wear depth of the plane as the optimization index.By the use of integrated balance method，the best rigid cylindrical structure and material parameters are obtained and validated.The results of the study on the effect of plane wear profile show that the elastic modulus of the cylindrical material is most significant.Followed by the cylinder radius，and the poisson′s ratio of the cylinder material is least significant.
Keywords:fretting wear；numerical simulation；orthogonal experimental design；finite element