摘要
利用两矩形块来模拟实际工程应用中的面-面摩擦副部件,基于ANSYS软件和APDL语言建立了具有正方形凹坑表面的参数化分析模型,采用单因素试验的方法,对凹坑边长、深度和间距对非光滑表面耐磨性的影响进行了有限元分析,为下一步磨损试验作指导。通过研究发现,凹坑表面在接触过程中产生更多的压应变能和弯应变能,从而缓释应力,提高表面耐磨性;随着凹坑边长和间距增大,凹坑表面耐磨性先增大后减小,随着凹坑深度增大,凹坑表面耐磨性逐渐增大;耐磨性最佳的形貌参数为:凹坑边长20μm,凹坑深度80μm,凹坑间距90μm.
The surface-surface friction pair parts in engineering application were simulated by two rectangular blocks. The small block was built with square pit, the big block was built with smooth surface. The parameterized analysis model of the blocks was built by ANSYS and APDL language. With the method of single factor experiment, the effect of pit side length, pit depth and pit spacing on the wear resistance was researched in the finite element simulation. The results indicate that pit surface can even load and improve the surface wear resistance by producing more compressive strain energy and more bending strain energy in the process of contact. With the increment of pit side length and pit spacing, the wear resistance of pits surface increases at first, then decreases. With the increment of pit depth, it increases gradually. Finally, by the optimization design of non-smooth surface morphology, the wear resistance of pit surface becomes optimal when the side length is 20 μm, the depth is 80 μm, the spacing is 90μm.
出处
《太原理工大学学报》
CAS
北大核心
2017年第1期73-78,共6页
Journal of Taiyuan University of Technology
基金
山西省煤基重点科技攻关项目:复杂工况下刮板输送机关键零部件的动态仿真及优化设计(MJ2014-06)
山西省高等学校创新人才支持计划(2014)
山西省基础条件平台项目(2014091016)
煤矿综采装备山西省重点实验室开放课题资助项目:煤散料在重型刮板输送机中的装运力学行为与摩擦学特征(2015-02)
