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P-S-N curves with parameters estimated by particle swarm optimization and reliability prediction

  • Harbin Institute of Technology

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

Abstract

The probabilistic characteristics of components can't be completely expressed by the S-N curve with parameters estimated by small number of specimens. Particle Swarm Optimization (PSO) is introduced to fit parameters with the incomplete test data, which can take advantage of the entire information of the specimens to obtain the globally optimal solution. With the fitness function offered based on the principle of the total minimum mean-square value of fitting errors, the parameters of the three-parameter P-S-N curve are estimated with PSO. In sequence, the obtained P-S-N curve is applied in the fatigue damage accumulation model for reliability prediction. The above models are verified with test data with relation to two different 45 steels. The simulation results match well with experiment data.

Original languageEnglish
Title of host publication2014 10th International Conference on Natural Computation, ICNC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages627-631
Number of pages5
ISBN (Electronic)9781479951505
DOIs
StatePublished - 2014
Event2014 10th International Conference on Natural Computation, ICNC 2014 - Xiamen, China
Duration: 19 Aug 201421 Aug 2014

Publication series

Name2014 10th International Conference on Natural Computation, ICNC 2014

Conference

Conference2014 10th International Conference on Natural Computation, ICNC 2014
Country/TerritoryChina
CityXiamen
Period19/08/1421/08/14

Keywords

  • Fitness function
  • P-S-N curve
  • Parameter estimation
  • Particle swarm optimization
  • Reliability

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