Health monitoring of a railway track switch actuator based on continuous-time parameter estimation method

Saikat Dutta, Ramakrishnan Ambur , Moussa Hamadache, Osama Olaby, Jou Yi Shih, Edward Stewart, Roger Dixon

Research output: Contribution to conference (unpublished)Posterpeer-review

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The maintenance of the Railway track switches, which are exposed to environment, are very critical as any failure in the switch system may lead to accidents. With the increase of the capacity in the network, availability of switches is very important which limits the schedule maintenance process. Parameter estimation techniques can be used to estimate and detect the gradual degradation of the system. In this research, a Simplified Refined Instrumental Variable based continuous time parameter estimation method is used to monitor the condition of a railway track switch actuator. This approach will lead to reduce the number of scheduled maintenance of the switch system. In the present study, a switch system with electro-mechanical actuator, which is in operation in the UK rail network, has been modelled using the multibody model. This technique is tested with changing switch parameters and it detects changes in the system parameters such friction, stiffness elements.
Original languageEnglish
Number of pages9
Publication statusPublished - 30 Apr 2020
Event8th Transport Research Arena TRA 2020 - Helsinki, Finland
Duration: 27 Apr 202030 Apr 2020
Conference number: 8th


Conference8th Transport Research Arena TRA 2020
Abbreviated titleTRA 2020
Internet address


  • Railway Track Switch
  • Parameter Estimation
  • Continuous Time Systems
  • Railways
  • Health
  • Monitoring


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