Study on numerical inverse hanging method for freeform shell structure

Yue Wu, Yan Su, Qingpeng Li, Qingjie Hu

Research output: Contribution to journalArticleScientific

3 Citations (Scopus)

Abstract

Numerical inverse hanging method is a kind of efficient form-finding method which can generate shell structures free of bending moments under certain external loads. This paper proposes an improved numerical inverse hanging method based on the vector form intrinsic finite element (VFIFE), for improving the poor convergence performance of the existing method based on the nonlinear finite element method. By using VFIFE to find the equilibrium form of inverted structures and using the local linearization method to adjust the Young's modulus of cable elements, the form-control problem of inverted structures is solved. Moreover, a step rigidization method is proposed, which can realize the form-control of complex structures with multiple target points. Finally, the accuracy and efficiency of the numerical method is verified by observing one Isler's plaster model and comparing its physical shape with the numerical simulating result.

Original languageUndefined/Unknown
Pages (from-to)19-25
JournalJianzhu Jiegou Xuebao/Journal of Building Structures
Volume39
Issue number3
DOIs
Publication statusPublished - 2018

Keywords

  • Freeform shell structure
  • Inverse hanging method
  • Local linearization method
  • Step rigidization method
  • Vector form intrinsic finite element method

Cite this