框架结构振动分析的行波方法

将由一维波导通过结点组装成的空间结构的振动作为波动研究，波沿波导传播，并在结点处反射、散射。考虑结点处的边界条件，将局部波动模型合并成总体模型，由此模型可获得比有限元方法更精确的振动特性，同时通过能量分析可获得结构任一部分的平均能量损耗功率，为结构修改和振动控制提供依据。

Vibration Analysis for Frame Structures via Travelling Wave Approach

Vibration of structures assembled from one dimensional waveguides is studied as wave motion in this paper. Waves propagate along the waveguides and reflect, scatter at the junctions. The boundary conditions are considered to assemble the local wave model to global system model, from which more accurate dynamic properties than FEM are obtained. The average dissipative power caused by damping can be calculated for any part of the structure by energy analysis, therefore structure modification and vibration control can be easily considered.