Structural Engineering and Mechanics

  • 제60권1호
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  • Pages.149-162
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Improved formulation for a structure-dependent integration method

  • Chang, Shuenn-Yih (Department of Civil Engineering, National Taipei University of Technology) ;
  • Wu, Tsui-Huang (Department of Civil Engineering, National Taipei University of Technology) ;
  • Tran, Ngoc-Cuong (Department of Civil Engineering, National Taipei University of Technology)
  • 투고 : 2015.10.15
  • 심사 : 2016.07.19
  • 발행 : 2016.10.10
⟨ 이전 논문 다음 논문 ⟩

초록

Structure-dependent integration methods seem promising for structural dynamics applications since they can integrate unconditional stability and explicit formulation together, which can enable the integration methods to save many computational efforts when compared to an implicit method. A newly developed structure-dependent integration method can inherit such numerical properties. However, an unusual overshooting behavior might be experienced as it is used to compute a forced vibration response. The root cause of this inaccuracy is thoroughly explored herein. In addition, a scheme is proposed to modify this family method to overcome this unusual overshooting behavior. In fact, two improved formulations are proposed by adjusting the difference equations. As a result, it is verified that the two improved formulations of the integration methods can effectively overcome the difficulty arising from the inaccurate integration of the steady-state response of a high frequency mode.

키워드

과제정보

연구 과제 주관 기관 : National Science Council

참고문헌

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피인용 문헌

  1. Discussion of “New Unconditionally Stable Explicit Integration Algorithm for Real-Time Hybrid Testing” by Yu Tang and Menglin Lou vol.144, pp.10, 2018, https://doi.org/10.1061/(ASCE)EM.1943-7889.0001521
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  5. A dissipative family of eigen-based integration methods for nonlinear dynamic analysis vol.75, pp.5, 2016, https://doi.org/10.12989/sem.2020.75.5.541
  6. New Family of Explicit Structure-Dependent Integration Algorithms with Controllable Numerical Dispersion vol.147, pp.3, 2021, https://doi.org/10.1061/(asce)em.1943-7889.0001901