摘要
建立橡胶旋转轴唇形密封圈的广义轴对称模型,并基于Abaqus/Python二次开发与Abaqus/ALE自适应网格技术提出一种密封圈磨损有限元仿真方法,通过与实验结果对比,验证了方法的有效性。相比于三维磨损模型,该方法能够在保证计算精度的同时显著提高计算效率。基于该方法研究不同工况参数对密封圈磨损的影响。结果表明:磨损初期主唇口的空气侧磨损程度较油侧更严重,后期主唇口油侧磨损程度逐渐超过空气侧;转速对磨损的影响较小,且在相同磨损时间不同转速下的主唇口轮廓线大致平行;装配过盈量对磨损影响较大,但在相同磨损时间不同过盈量下的主唇口轮廓线大致平行;弹簧箍紧力对磨损的影响较大,相同磨损时间情况下,弹簧箍紧力越大则主唇口油侧磨损越严重。
The generalized axisymmetric model of rubber rotating lip seals was established.A finite element simulation method was developed at the base of the secondary development of Abaqus/Python and the Abaqus/ALE adaptive meshing technology,whose validity was verified by the experimental results.Compared with the three-dimensional wear model,the new method can significantly improve the computation efficiency at no expense of numerical accuracy.Based on this method,the influence of different working condition parameters on seals was studied.The results show that the wear degree of the air side of the main lip is more serious than that of the oil side in the early stage of wear,and the wear degree of the oil side gradually exceeds that of the air side as the wear time increases.The rotational speed has less influence on the wear,and the main lip contour lines with different rotational speed are roughly parallel at the same wear time.On contrast,the assembly interference has significant influence on wear,but the main lip contour lines under different interference are also roughly parallel.The spring clamping force also has great influences on wear.As the spring clamping force increases,the wear degree on the oil side becomes more severe.
作者
刘亚东
尚闫
柯玉超
夏迎松
LIU Yadong;SHANG Yan;KE Yuchao;XIA Yingsong(College of Aerospace Engineering,State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing Jiangsu 210016,China;Key Laboratory of High-Performance Rubber&Products of Anhui Province,Ningguo Anhui 242300,China)
出处
《润滑与密封》
CAS
CSCD
北大核心
2022年第12期100-106,共7页
Lubrication Engineering
基金
国家自然科学基金项目(12072154)
国家重点研发计划项目(2018YFB2001000)
南京航空航天大学研究生创新基地(实验室)开放基金项目(kfjj20200103)。
