Smart Structures and Systems

  • 제23권6호
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  • Pages.695-702
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  • 2019
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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Integrated cable vibration control system using Arduino

  • Jeong, Seunghoo (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology) ;
  • Lee, Junhwa (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology) ;
  • Cho, Soojin (Department of Civil Engineering, University of Seoul) ;
  • Sim, Sung-Han (School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology)
  • 투고 : 2017.08.03
  • 심사 : 2019.01.18
  • 발행 : 2019.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

The number of cable-stayed bridges has been increasing worldwide, causing issues in maintaining the structural safety and integrity of bridges. The stay cable, one of the most critical members in cable-stayed bridges, is vulnerable to wind-induced vibrations owing to its inherent low damping capacity. Thus, vibration mitigation of stay cables has been an important issue both in academia and practice. While a semi-active control scheme shows effective vibration reduction compared to a passive control scheme, real-world applications are quite limited because it requires complicated equipment, including for data acquisition, and power supply. This study aims to develop an Arduino-based integrated cable vibration control system implementing a semi-active control algorithm. The integrated control system is built on the low-cost, low-power Arduino platform, embedding a semi-active control algorithm. A MEMS accelerometer is installed in the platform to conduct a state feedback for the semi-active control. The Linear Quadratic Gaussian control is applied to estimate a cable state and obtain a control gain, and the clipped optimal algorithm is implemented to control the damping device. This study selects the magnetorheological damper as a semi-active damping device, controlled by the proposed control system. The developed integrated system is applied to a laboratory size cable with a series of experimental studies for identifying the effect of the system on cable vibration reduction. The semi-active control embedded in the integrated system is compared with free and passive mode cases and is shown to reduce the vibration of stay-cables effectively.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Land, Infrastructure and Transport

참고문헌

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피인용 문헌

  1. Single input magnetorheological pseudo negative stiffness control for bridge stay cables vol.30, pp.1, 2021, https://doi.org/10.1088/1361-665x/abcca4
  2. Damping enhancement of the inerter on the viscous damper in mitigating cable vibrations vol.28, pp.1, 2019, https://doi.org/10.12989/sss.2021.28.1.089