Analytical Approximate Solutions To Large-Amplitude Free Vibrations Of Uniform Beams On Pasternak Foundation
Analytical Approximate Solutions To Large-Amplitude Free Vibrations Of Uniform Beams On Pasternak Foundation
复制标题
帕斯捷尔纳克地基均匀梁大振幅自由振动的解析近似解
DOI:
10.1142/s1758825114500756
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发表时间:
2014-12
影响因子:
3.5
通讯作者:
Wu Baisheng
中科院分区:
文献类型:
--
作者:
Yu Yongping;Wu Baisheng
This paper is concerned with the large-amplitude vibration behavior of simply supported and clamped uniform beams, with axially immovable ends, on Pasternak foundation. The combination of Newton's method and harmonic balance one is used to deal with these vibrations. Explicit and brief analytical approximations to nonlinear frequency and periodic solution of the beams for various values of the two stiffness parameters of the Pasternak foundation, small as well as large amplitudes of oscillation are presented. The analytical approximate results show excellent agreement with those from numerical integration scheme. Due to brevity of expressions, the present analytical approximate solutions are convenient to investigate effects of various parameters on the large-amplitude vibration response of the beams.
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