Probabilistic modelling of existing structures for dynamic analysis

Tai-Yan Kam

doi:10.1016/0895-7177(88)90660-7

Probabilistic modelling of existing structures for dynamic analysis

Tai-Yan Kam^*

^*Corresponding author for this work

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English
Pages (from-to)	1083-1086
Number of pages	4
Journal	Mathematical and Computer Modelling
Volume	11
Issue number	C
DOIs	https://doi.org/10.1016/0895-7177(88)90660-7
State	Published - 1 Jan 1988

Keywords

Mechanical structures
experimental modal analysis
finite element analysis
random vibration

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title = "Probabilistic modelling of existing structures for dynamic analysis",

abstract = "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.",

keywords = "Mechanical structures, experimental modal analysis, finite element analysis, random vibration",

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N2 - 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.

AB - 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.

KW - Mechanical structures

KW - experimental modal analysis

KW - finite element analysis

KW - random vibration

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