Probabilistic modelling of existing structures for dynamic analysis

Tai-Yan Kam*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A probabilistic model for analyzing existing structures subjected to dynamic loads is presented. Modal parameters and their statistics are obtained from experimental modal tests. Structure stiffness matrix is constructed from measured modal parameters using the matrix of transfer functions in the Laplace domain. Finite element and finite difference methods are used for the dynamic analysis of structures with random stiffness. The application of the proposed model is demonstrated by a numerical example.

Original languageEnglish
Pages (from-to)1083-1086
Number of pages4
JournalMathematical and Computer Modelling
Issue numberC
StatePublished - 1 Jan 1988


  • Mechanical structures
  • experimental modal analysis
  • finite element analysis
  • random vibration

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