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Indirect Measurement of Loading Forces with High-Speed Camera.

Krzysztof Mendrok1, Ziemowit Dworakowski1, Kajetan Dziedziech1

  • 1Department of Robotics and Mechatronics, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland.

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|October 13, 2021
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Summary

This study introduces a novel contactless method for identifying excitation forces using high-speed cameras. This approach overcomes limitations of traditional sensors in structural health monitoring (SHM) systems.

Keywords:
high-speed cameraload identificationload monitoringvision measurements

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Area of Science:

  • Engineering
  • Materials Science
  • Physics

Background:

  • Structural Health Monitoring (SHM) systems are increasingly vital for infrastructure.
  • Traditional load monitoring relies on direct force sensors or strain gauges, which have implementation limitations.
  • Existing indirect methods using response measurements often require extensive sensor networks, posing installation challenges.

Purpose of the Study:

  • To present a novel method for identifying excitation forces using contactless measurements.
  • To offer a cost-effective and easier-to-implement alternative to traditional sensor-based load monitoring.
  • To address the technological difficulties and potential result modification associated with extensive sensor installations.

Main Methods:

  • Utilizing a high-speed camera for contactless response measurements.
  • Developing algorithms to identify excitation forces based on observed structural responses.
  • Comparing the effectiveness of contactless measurements against traditional sensor-based approaches.

Main Results:

  • Demonstrated the feasibility of identifying excitation forces through contactless measurements.
  • Showcased a potential reduction in installation complexity and cost compared to wired sensor networks.
  • Highlighted the ability to overcome limitations where traditional sensors are impractical.

Conclusions:

  • Contactless measurements with high-speed cameras offer a promising alternative for force identification in SHM.
  • This method can simplify implementation and potentially improve accuracy for slender structures.
  • Further research can explore the integration of this technique into comprehensive SHM systems.