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Focusing on accelerated life testing for cylinders

  • Beihang University
  • Chemnitz University of Technology

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

Abstract

The study of accelerated life test on cylinders for pneumatic industry is covered in this paper. Accelerated life testing is valuable tools to get information quickly on life distribution which is achieved by subjecting the test units to conditions that are more severe than the normal ones. Long lifetime pneumatic cylinders are selected as the test object. Section I covers the fault mechanism analysis, the piston and piston pole parking are the weak units as they are movable parts as well as leakage sources which easily result in the cylinders failure. Liquid temperature and operating frequency are chosen as stresses since their accelerating potentials are available for the specific cylinders. The complete ALT data is presented using Weibull distribution. Estimation for the parameters of failure model and other characteristics of cylinders population life distribution are done successfully. From the 3-axis graph plotted, the effects of each stresses to cylinders can be seen clearly which provide useful results for cylinders researcher and developer.

Original languageEnglish
Title of host publicationSeventh International Symposium on Instrumentation and Control Technology
Subtitle of host publicationMeasurement Theory and Systems and Aeronautical Equipment
DOIs
StatePublished - 2008
Event7th International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment - Beijing, China
Duration: 10 Oct 200813 Oct 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7128
ISSN (Print)0277-786X

Conference

Conference7th International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment
Country/TerritoryChina
CityBeijing
Period10/10/0813/10/08

Keywords

  • Accelerate Life Testing (ALT)
  • Constant stress
  • Dual stress
  • Pneumatic cylinders

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