• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 54 Issue 2
Jun.  2019
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Article Contents
PENG Zhenrui, ZHANG Nan, YIN Hong, DONG Kangli. Optimal Sensor Placement of EMU Frame Based on Frequency Response Function[J]. Journal of Southwest Jiaotong University, 2019, 54(2): 402-407, 414. doi: 10.3969/j.issn.0258-2724.20170780
Citation: PENG Zhenrui, ZHANG Nan, YIN Hong, DONG Kangli. Optimal Sensor Placement of EMU Frame Based on Frequency Response Function[J]. Journal of Southwest Jiaotong University, 2019, 54(2): 402-407, 414. doi: 10.3969/j.issn.0258-2724.20170780

Optimal Sensor Placement of EMU Frame Based on Frequency Response Function

doi: 10.3969/j.issn.0258-2724.20170780
  • Received Date: 06 Nov 2017
  • Rev Recd Date: 10 Apr 2018
  • Available Online: 31 May 2018
  • Publish Date: 01 Apr 2019
  • To realize both location and quantity optimization, a method of optimal sensor placement based on a frequency response function is proposed. First, the structure modal analysis was conducted and mode shapes were extracted, and the frequency response function of the structure was calculated. Then, based on independent component analysis and the K-means clustering method, the sensors’ positions were optimized. Finally, the Fisher information matrices and their entropies corresponding to the placement results with different numbers of sensors were calculated. The number of sensors corresponding to minimum information entropy is the optimal number. The simulation results of the CRH3 frame show that all sensors are placed near the maximum stress positions, meeting the UIC615-4 standard, and also show that the result of sensor placement can maximize the information with limited sensors.

     

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