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http://dx.doi.org/10.5050/KSNVN.2007.17.9.835

Parametric Studies of Flexural Free Vibrations of Circular Strip Foundations with Various End Constraints Resting on Pasternak Soil  

Lee, Byoung-Koo (Dept. of Civil Engineering, Wonkwang University)
Li, Guang-Fan (Dept. of Civil Engineering, Hainan University)
Kang, Hee-Jong (Graduate School, Wonkwang University)
Yoon, Hee-Min (Graduate School, Wonkwang University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.17, no.9, 2007 , pp. 835-846 More about this Journal
Abstract
This paper deals with the flexural free vibrations of circular strip foundation with the variable breadth on Pasternak soil. The breadth of strip varies with the linear functional fashion, which is symmetric about the mid-arc. Differential equations governing flexural free vibrations of such strip foundation are derived, in which the elastic soil with the shear layer, i.e. Pasternak soil, is considered. Effects of the rotatory and shear deformation are included in the governing equations. Differential equations are numerically solved to calculate the natural frequencies and mode shapes. In the numerical examples, the hinged-hinged, hinged-clamped and clamped-clamped end constraints are considered. Four lowest frequency parameters accompanied with their corresponding mode shapes are reported and parametric studies between frequency parameters and various system parameters are investigated.
Keywords
Flexural Free Vibration; Natural Frequency; Circular Strip Foundation; Variable Breadth; Pasternak Soil;
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Times Cited By KSCI : 1  (Citation Analysis)
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