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Contact bounce performance and robust optimization for railway relay

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

Abstract

The overlong contact bounce time and poor consistency are common problems of railway relay series. Due to the low electromagnetic efficiency of the railway relay snap-on structure, the long reed size and the large number of contact sets, it is very difficult to design and optimize the contact bounce. Based on the concept of robust design, this paper proposes a reliability optimization method that reduces contact bounce time and improves its consistency at the same time. Firstly, an approximate mathematical model between the processing parameters and the contact bounce amplitude is established, combining with the simulation modeling method. On this basis, the objective function of reliability optimization is constructed with the purpose of simultaneously reducing the mean value and standard deviation. Finally, the correctness of optimization scheme is verified by prototype manufacturing and test.

Original languageEnglish
Title of host publicationProceedings of the 7th International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2019
EditorsJingqin Wang, Jingying Zhao
PublisherInternational Academic Publishers
Pages99-104
Number of pages6
ISBN (Electronic)9789881532343
StatePublished - 2019
Event7th International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2019 - Suzhou, China
Duration: 4 Nov 20196 Nov 2019

Publication series

NameProceedings of the 7th International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2019

Conference

Conference7th International Conference on Reliability of Electrical Products and Electrical Contacts, ICREPEC 2019
Country/TerritoryChina
CitySuzhou
Period4/11/196/11/19

Keywords

  • Contact bounce
  • Electromechanical products
  • Performance optimization
  • Robust design

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