Skip to main navigation Skip to search Skip to main content

Fatigue life analysis on motion mechanism for multiple loading conditions

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Aiming at the actual multiple loading conditions of a motion mechanism, fatigue life analysis is conducted for different load levels based on finite element method (FEM) simulation. A simplified global finite element model of the motion mechanism is established. The local load on the key structural components is analyzed according to the load spectrum absorbed by the motion mechanism for multiple loading conditions. Local finite element models of key components are then established. The stress distribution and maximum stress value are analyzed. Fatigue Life of key components of the motion mechanism is calculated with safety life analysis method, further to get the fatigue life of the entire motion mechanism. The results show that the upper rod installation connector of the motion mechanism is the key component with the shortest fatigue life. For multiple loading conditions, the result of fatigue life analysis on the motion mechanism based on FEM is close to the result of fatigue test, with high accuracy.

Original languageEnglish
Title of host publicationICRMS'2011 - Safety First, Reliability Primary
Subtitle of host publicationProceedings of 2011 9th International Conference on Reliability, Maintainability and Safety
Pages1308-1313
Number of pages6
DOIs
StatePublished - 2011
Event2011 9th International Conference on Reliability, Maintainability and Safety: Safety First, Reliability Primary, ICRMS'2011 - Guiyang, China
Duration: 12 Jun 201115 Jun 2011

Publication series

NameICRMS'2011 - Safety First, Reliability Primary: Proceedings of 2011 9th International Conference on Reliability, Maintainability and Safety

Conference

Conference2011 9th International Conference on Reliability, Maintainability and Safety: Safety First, Reliability Primary, ICRMS'2011
Country/TerritoryChina
CityGuiyang
Period12/06/1115/06/11

Keywords

  • FEM
  • fatigue life
  • motion mechanism
  • multiple loading conditions

Fingerprint

Dive into the research topics of 'Fatigue life analysis on motion mechanism for multiple loading conditions'. Together they form a unique fingerprint.

Cite this