A transient elastohydrodynamic lubrication model for non-spherical bearing surfaces of artificial hip joint implants under walking conditions has been developed. A nominal ball-in-socket configuration was employed to represent the articulation between a spherical femoral head and a non-spherical acetabular cup in this study. The non-sphericity of the bearing geometry was described by an ellipsoid with the variation of three ellipsoidal semi-axis lengths relative to the nominal spherical surface. An appropriate spherical coordinate system and mesh grids were selected to facilitate the numerical simulation. Both the equivalent discrete spherical convolution model and the corresponding spherical fast Fourier transform technique were used to evaluate the elastic deformation of both the spherical head and non-spherical cup surfaces. The transient lubrication model was subsequently adopted to investigate the effect of nonsphericity of an ellipsoidal cup on the transient elastohydrodynamic lubrication in...

Effect of non-spherical bearing geometry on transient elastohydrodynamic lubrication in metal-on-metal hip joint implants:

Two-dimensional digital filtering method is used to simulate the machining surface of the thin walled rotary table bearing of the robot of feeding system in naval gun's ammunition. Taking individual contact pair as the research object, the surface stress distribution is solved by multigrid method under the condition of elastohydrodynamic lubrication. The subsurface stress is solved by ANSYS. Based on the stress life model of Zaresky, the effects of the rough surface parameters, such as RMS(root mean square root), skewness, and kurtosis on relative fatigue life of the thin walled rotary table bearing are studied. The relationships between the RMS, skewness, kurtosis and the relative fatigue life of the bearing are obtained.

Relative Fatigue Life Analysis for Bearing of the Robot of Feeding System In Naval Gun's Ammunition

A full numerical methodology was developed for the elasto-hydrodynamic lubrication analysis of hip joint implants for the lubrication problem in spherical and conformal contacts. Typical results of a metal-on-metal hip implant were obtained to illustrate the applicability of the numerical methodology developed in the present study.Copyright © 2005 by ASME

Elasto-Hydrodynamic Lubrication Modelling of Spherical Metal-on-Metal Artificial Hip Joints

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

F. C. Wang

Author Tools

Chat about Author

Papers

Elasto-Hydrodynamic Lubrication Modelling of Spherical Metal-on-Metal Artificial Hip Joints