The natural vibration of bimodulous beam considering shear effect

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Journal of Vibration and Shock ›› 2015, Vol. 34 ›› Issue (24) : 160-163.

WU Xiao HUANG Zhigang YANG Lijun

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Abstract

Considering the shear effect, the natural vibration problem of bimodulous beam is studied in this paper. On the basis of considering shear effect, the vibration differential equation of bimodulous beam is established, the mode shape expression of vibration problem of bimodulous beam is derived, and the influence of shear effect on natural vibration frequencies of bimodulous beam is analyzed. The computational results indicate that the influence of shear effect on natural vibration of bimodulous beam can not be ignored in some case. The conclusion that, there are discontinuity points in the odd wave type and wave shape of the natural vibration problem of bimodulous beam, is also got.

Key words

shear effect / bimodulous / beam / natural vibration / frequency

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WU Xiao HUANG Zhigang YANG Lijun. The natural vibration of bimodulous beam considering shear effect[J]. Journal of Vibration and Shock, 2015, 34(24): 160-163

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