【摘要】 通过分析证实基于波动力学理论下粘滞阻尼理论及复阻尼理论的在杆的轴向振动及梁的横向振动中阻尼参数的一致性。通过引入应力波阻抗的概念,为结构振动分析计算中阻尼参数的选择提供一种实用性较强的方法,并应用这种方法来确定杆式结构和梁式结构的阻尼特性参数分布。更多还原

【Abstract】 Theoretical analysis has verified the consistency of viscous damping theory and complex damping theory based on the elastic stress wave theory for both rods in axial vibration and beams in transverse vibration.The conception of stress wave impedance is introduced to afford a practicable method for selection of damping parameter in dynamic analysis of bridge structures.This approach can be applied to determine a parameter distribution of structural damping characteristics for rods and beams.更多还原