Modelling and identification of a wire-cable viberation isolater via a cyclic loading test Part 1: And experiment and model developement

Yiqing Ni, J. M. Ko, C. W. Wong, S. Zfaan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

43 Citations (Scopus)


A cyclic loading test was carried out on a wire-cable vibration isolator to obtain experimentally its hysteretic behaviour in shear, roll and tension-compression respectively. In shear and roll modes, the isolator exhibits symmetric soft-hardening hysteresis loops under cyclic loading, namely the hysteresis loops display a softening stiffness in relatively small deformations and diverge to exhibiting a hardening stiffness at large deformation levels. In the tension-compression mode, the isolator exhibits asymmetric hysteresis loops, which constitute a segment of a hardening overlapping envelope in the loading curves. In recognizing the inapplicability of existing hysteretic models, two improved Bouc-Wen models are proposed within the framework of the mathematical Duhem hysteresis operator, to represent the symmetric soft-hardening hysteresis loops and the asymmetric hysteresis loops with a hardening overlapping envelope respectively.
Original languageEnglish
Pages (from-to)163-171
Number of pages9
JournalProceedings of the Institution of Mechanical Engineers. Part I: Journal of Systems and Control Engineering
Issue number3
Publication statusPublished - 1 Dec 1999


  • Duhem hysteresis operator
  • Experimental hysteresis loops
  • Hysteretic model
  • Wire-cable vibration isolator

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering

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