Smart Structures and Systems

  • 제14권6호
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  • Pages.1197-1220
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  • 2014
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  • 1738-1584(pISSN)
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  • 1738-1991(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Analysis of decimation techniques to improve computational efficiency of a frequency-domain evaluation approach for real-time hybrid simulation

  • Guo, Tong (Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University) ;
  • Xu, Weijie (School of Civil Engineering, Southeast University) ;
  • Chen, Cheng (School of Engineering, San Francisco State University)
  • 투고 : 2014.04.10
  • 심사 : 2014.08.20
  • 발행 : 2014.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

Accurate actuator tracking is critical to achieve reliable real-time hybrid simulation results for earthquake engineering research. The frequency-domain evaluation approach provides an innovative way for more quantitative post-simulation evaluation of actuator tracking errors compared with existing time domain based techniques. Utilizing the Fast Fourier Transform the approach analyzes the actuator error in terms of amplitude and phrase errors. Existing application of the approach requires using the complete length of the experimental data. To improve the computational efficiency, two techniques including data decimation and frequency decimation are analyzed to reduce the amount of data involved in the frequency-domain evaluation. The presented study aims to enhance the computational efficiency of the approach in order to utilize it for future on-line actuator tracking evaluation. Both computational simulation and laboratory experimental results are analyzed and recommendations on the two decimation factors are provided based on the findings from this study.

키워드

과제정보

연구 과제 주관 기관 : Natural Science Foundation of China

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피인용 문헌

  1. Analysis of actuator delay and its effect on uncertainty quantification for real-time hybrid simulation vol.16, pp.4, 2017, https://doi.org/10.1007/s11803-017-0409-6
  2. Reliability Assessment of Real-time Hybrid Simulation Under Worst-Case Scenarios Using Frequency-Domain Evaluation Indices vol.41, pp.3, 2017, https://doi.org/10.1007/s40799-017-0172-7
  3. Localized evaluation of actuator tracking for real-time hybrid simulation using frequency-domain indices vol.62, pp.5, 2017, https://doi.org/10.12989/sem.2017.62.5.631