表面带横向单粗糙峰或单粗糙谷的等温冲击问题分析  

Analysis of the isothermal falling ball problem with a single rough bump or groove transverse surface irregularity

作　　者：王娜[1] 赵一甍 王静[1] 

机构地区：[1]青岛理工大学机械工程学院,青岛266033 [2]烟台市勘察设计审查服务中心,烟台264003

出　　处：《青岛理工大学学报》2013年第2期97-104,共8页Journal of Qingdao University of Technology

基　　金：国家973子课题(92011CB706602-1)

摘　　要：采用数值分析方法求解了等温落球问题中,钢球表面存在横向单粗糙峰和粗糙谷的影响.在每一个瞬时,压力的计算使用多重网格法,弹性变形的计算使用多重网格积分法.将计算结果同光滑表面的膜厚和压力进行了比较,并讨论了单粗糙峰和粗糙谷的波长对压力和润滑膜厚度的影响.With numerical techniques, the effect of a single transverse bump or groove on steel ball surface on the problem of isothermal falling ball is explored. The pressure is instantane- ously evaluated with a multi-grid method, the elastic deformation is calculated with a multi- integration technique. The results are compared with those in smooth contacts. Further- more,the influences of the wavelength of the bump or groove on the pressure and the thick- ness of lubricating film are also discussed in the paper.

关 键 词：粗糙峰 粗糙谷 波长 

分 类 号：TH117.2[机械工程—机械设计及理论]