Dynamical analysis for viscoelastic beam-columns with damage
According to the constitutive model expressed by convolution method for viscoelastic solids with damage, the dynamic behaviors of a homogeneous, simple supported beam column, subjected to a periodic axial force is investigated under the case of small deflections. The equations of motion were derived as a set of linear integro-partial-dinferential equations, and were simplified into a set of linear integro-differential equations by the Galerkin method. The numerical methods in nonlinear dynamics, such as phase-trajectory diagrams, Poincare sections, time-path curves and bifurcation figures were used to solve the simplified system. It could be seen that there are plenty of dynamic properties for this kind of viscoelastic beam column under transverse harmonic loads. The influences of the material on the dynamic behavior of viscoelastic beam column with voids were investigated.
Dong-fa Sheng Yuan-yuan Zhu De-ru Chi Shao-feng Zeng Cong-ling Zhu
Department of Electromechanical and Automatic Engineering, Fuj ian University of Technology,Fuzhou 3 Department of Computer Science and Technology, Shanghai Normal University, Shanghai 200234, China
国际会议
The 5th International Conference on Nonlinear Mechanics(第五届国际非线性力学会议)
上海
英文
660-665
2007-06-11（万方平台首次上网日期，不代表论文的发表时间）