Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2005.11a
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- Pages.600-603
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- 2005
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- 1598-2548(pISSN)
Free Vibration Analysis of Simply Supported Beam with Double Cracks
이중크랙을 가진 단순지지 보의 자유진동 해석
- Published : 2005.11.01
Abstract
In this paper we studied about the effect of the double cracks on the dynamic behavior of a simply supported beam. The equation of motion is derived by using Lagrange's equation and analyzed by numerical method. The simply supported beam is modeled by the Euler-Bernoulli beam theory. The crack section is represented by a local flexibility matrix connecting three undamaged beam segments. The influences of the crack depth and position of each crack on the vibration mode and the natural frequencies of a simply supported beam are analytically clarified. The theoretical results are also validated by a comparison with experimental measurements.
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