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ARTICLE
Analysis of out-of-plane free vibration of single damaged curved beam based on precise algorithm of structural mechanics
1
College of Transportation Engineering, Dalian Maritime University, Dalian, China
Submission date: 2022-09-26
Final revision date: 2023-02-22
Acceptance date: 2023-03-04
Online publication date: 2023-04-27
Publication date: 2023-04-28
Corresponding author
Journal of Theoretical and Applied Mechanics 2023;61(2):407-414
KEYWORDS
TOPICS
ABSTRACT
Based on a dynamic discrete model of an out-of-plane curved beam with a constant cur-
vature, eigen-properties of the spatial curved beam structure in undamaged and damaged
configurations are considered in this paper. In the literature, based on the equivalent sec-
tion reduction method, a distributed damage modeling method is proposed. Accoding to
Euler-Bernoulli beam theory, the stiffness matrix of shear, bending and torsion coupling is
derived. Combined with the lumped mass matrix and the characteristic equation of the multi
degree of freedom system, natural frequencies of the undamaged and damaged structures
are calculated.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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