首页> 外文会议>29th Leeds-Lyon Symposium on Tribology Sep 3-6, 2002 University of Leeds, UK >ANALYSIS OF THE OIL DISTRIBUTION IN STARVED ELLIPTICAL E.H.D. CONTACTS
【24h】

ANALYSIS OF THE OIL DISTRIBUTION IN STARVED ELLIPTICAL E.H.D. CONTACTS

机译:饥饿的椭圆形E.H.D.中的油分布分析联系方式

获取原文
获取原文并翻译 | 示例

摘要

The starvation behaviour of circular and elliptical contacts has been studied and compared numerically. Increasing the ellipticity (decreasing k) increases the resistance to side flow (γ). The oil ejection mechanisms are modified when the starvation degree increases. As starvation increases (r decreases), the relative film thickness reduction increases (γ decreases up to a factor 2 in elliptical contacts). The oil ejection location moves from a single site in the inlet (in fully flooded and moderately starved contacts) to an ejection shared between two sites of similar importance, inlet and outlet, as starvation increases (r decreases). A coupling (stronger for the circular contact case) seems to flatten the γ_(out) profiles, rendering the oil ejection more or less uniform across the contact. This lubrication coupling is an important parameter to understand local lubrication failure. A parameter C describing this coupling is found to depend on the contact operating conditions M and L, the contact ellipticity k, the starvation level r and the lubricant defect width λ_(oil).
机译:研究了圆形和椭圆形触点的饥饿行为,并进行了数值比较。椭圆率的增加(k的减少)会增加对侧流(γ)的阻力。当饥饿度增加时,会改变喷油机构。随着饥饿程度的增加(r减小),相对膜厚度的减小也增加(γ减小直至椭圆形触点的2倍)。随着饥饿程度的增加(r减小),排油位置从入口中的单个位置(完全溢流和中度饥饿的触点)移动到重要性相似的两个位置(入口和出口)之间共享的排出位置。联轴器(对于圆形触点的情况更强)似乎会使γ_(out)轮廓变平,使整个触点上的喷油或多或少均匀。该润滑耦合是了解局部润滑故障的重要参数。发现描述这种耦合的参数C取决于接触操作条件M和L,接触椭圆率k,饥饿水平r和润滑剂缺陷宽度λ_(油)。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号