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http://dx.doi.org/10.5050/KSNVN.2003.13.9.720

Influence of Crack on Dynamic Behavior of Simply Supported Beam with Moving Mass  

윤한익 (동의대학교 기계정보산업공학부)
이용운 (한국항만 연수원)
손인수 (동의대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.13, no.9, 2003 , pp. 720-729 More about this Journal
Abstract
An iterative modal analysis approach is developed to determine the effect of transverse open cracks on the dynamic behavior of simply supported Euler-Bernoulli beam with the moving mass. The influences of the depth and the position of the crack in the beam have been studied on the dynamic behavior of the simply supported beam system by numerical method. The crack section is represented by a local flexibility matrix connecting two undamaged beam segments i.e. the crack is modelled as a rotational spring. This flexibility matrix defines the relationship between the displacements and forces across the crack section and is derived by applying fundamental fracture mechanics theory. As the depth of the crack is increased the frequency of the simply supported beam with the moving mass is increased.
Keywords
Moving Mass; Open Crack; Euler-Bernoulli Beam Theory; Flexibility Matrix;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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