Numerical study of squeaking suppresses for ceramic-on-ceramic hip endoprosthesis

作者：Fan N; Chen G X^*

来源：Tribology International, 2012, 48: 172-181.

DOI：10.1016/j.triboint.2011.11.023

• Ceramic hip endoprosthesis system
• Squeaking
• Complex eigenvalue extraction
• Vibrant stability

A finite element model of a ceramic hip endoprosthesis system is established with ABAQUS 6.7 and the motion stability of the model is studied using the complex eigenvalue method. Numerical results reveal that a torsional vibration and a flexural vibration of the femoral component are responsible for squeaking. Increasing Young's modulus of the stem, adding CoCrMo alloy as well as 316 L stainless steel in the stem and adding a whole damping layer of UHMWPE to the acetabular component can improve the vibrant stability of the system, then, suppress the squeaking.

• 出版日期2012-4
• 单位西南交通大学