Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2005.11a
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- Pages.764-767
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- 2005
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- 1598-2548(pISSN)
Flexural-Torsional Free Vibrations of Circular Strip Foundation with Variable Breadth
변화폭 원호형 띠기초의 휨-비틀림 자유진동
- Lee, Byoung-Koo (Wonkwang University) ;
- Park, Kwang-Kyou (Daejeon University) ;
- Kim, Gwon-Sik (Wonkwang University) ;
- Lee, Seung-Woo (Wonkwang University)
- Published : 2005.11.01
Abstract
This paper deals with the flexural-torsional free vibrations of circular strip foundations with a variable breadth. The breadth of strip foundation varies with the linear functional fashion, which is symmetric about the mid-arc. Differential equations governing free vibrations of such foundations are derived, in which Winkler foundation is considered as the model of elastic soils. Effects of the rotatory and torsional inertias and shear deformation are included in the governing equations. Differential equations are numerically solved to calculate the natural frequencies. In the numerical examples, the free-free end constraint is considered. Effects of the rotatory and torsional inertias and shear parameter on the natural frequencies are reported. Parametric studies between frequency parameters and various system parameters are investigated.
Keywords
- Flexural-torsional free vibration;
- circular strip;
- variable width;
- rotatory inertia;
- torsional inertia
- 휭-비틀림 자유진동;
- 원호형 띠기초;
- 변화폭;
- 회전관성;
- 비틀림관성;