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Design and Validation of a Scalable, Reconfigurable and Low-Cost Structural Health Monitoring System.

Juan J Villacorta1, Lara Del-Val2, Roberto D Martínez3

  • 1Department of Signal Theory and Communications and Telematic Engineering, University of Valladolid, Paseo de Belén, 15, 47011 Valladolid, Spain.

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Summary

A new low-cost Structural Health Monitoring (SHM) system using Micro Electro-Mechanical Systems (MEMS) triaxial accelerometers offers accurate and sensitive structural analysis. This affordable system provides comparable results to traditional methods, making it ideal for practical applications.

Keywords:
MEMS accelerometerslow-cost SHMmyRIO platformnon-destructive testing

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Area of Science:

  • Structural Engineering
  • Instrumentation and Measurement
  • Materials Science

Background:

  • Traditional Structural Health Monitoring (SHM) systems can be expensive.
  • There is a need for cost-effective and accurate SHM solutions.
  • Micro Electro-Mechanical Systems (MEMS) offer potential for miniaturized and affordable sensors.

Purpose of the Study:

  • To design, develop, and test a low-cost SHM system.
  • To utilize MEMS triaxial accelerometers for structural monitoring.
  • To validate the performance of the proposed system against conventional methods.

Main Methods:

  • Development of a novel control system using a myRIO platform and LabVIEW software.
  • Implementation of frequency response function computation for modal analysis.
  • Comparative testing against a conventional SHM system using piezoelectric accelerometers.

Main Results:

  • The developed SHM system demonstrated high correlation with a conventional piezoelectric system.
  • The system proved to be sufficiently accurate and sensitive for operational use.
  • Significant cost reduction compared to traditional SHM systems was achieved.

Conclusions:

  • The proposed low-cost SHM system based on MEMS accelerometers is a viable and effective alternative.
  • The system's accuracy and sensitivity support its use in practical structural monitoring.
  • The affordability of the system enhances its potential for widespread adoption.