中国机械工程2026，Vol.37Issue(7)：1572-1579,8.DOI:10.3969/j.issn.1004-132X.2026.07.005
温度与载荷协同作用下深地钻具径向轴承的表面损伤行为
Surface Damage Behaviors of the Radial Bearings for Deep Drilling Tools under the Synergistic Effect of Temperature and Load
摘要
Abstract
The stress and strain distributions of radial bearings for deep drilling tools under the syner-gistic effects of temperature and load are studied via finite element simulations using ANSYS Workbench.The simulation results show that the maximum equivalent stress and strain occur near the cemented carbide-solder interface(i.e.,the welding interface)and the cemented carbide-cemented carbide interface(i.e.,the sliding interface).Temperature significantly increases the stress and strain levels;the maximum equiva-lent stress and strain at 300 ℃ are approximately 2.5 times higher than those at 100 ℃.The frictional stress at both ends of the bearings is higher than that in the middle region,making the end regions more suscep-tible to adhesive wear.The simulation results are in good agreement with the damage distribution character-istics observed after field application,indicating that these findings can provide a theoretical reference for the optimal design of radial bearings.关键词
径向轴承/表面损伤/温度/载荷/有限元分析Key words
radial bearings/surface damage/temperature/load/finite element analysis分类
信息技术与安全科学引用本文复制引用
娄明,杨训旺,郝开元,徐凯,于兴胜,沈海春,张国田,常可可..温度与载荷协同作用下深地钻具径向轴承的表面损伤行为[J].中国机械工程,2026,37(7):1572-1579,8.基金项目
国家重点研发计划(2023YFB3712600) （2023YFB3712600）
国家自然科学基金(52475230) （52475230）
宁波市"科创甬江2035"关键技术项目(2024Z138,2024Z095) （2024Z138,2024Z095）
