摘要
本文基于 Mindlin板理论 ,从圆盘动力学方程出发 ,在粘弹性材料本构关系基础上 ,讨论柱面波在圆盘粘弹性波导吸振器中传播和耗能规律 ,并讨论了振动能量耗散率与圆盘几何参数、材料参数及振动波频率的关系 ,研究及计算机仿真表明 。
Based on Mindlin's plate theory,a dynamic equation of a visoelastic circular plate waveguide is presented in this paper.By investigation the propagation and energy disspation principle on the basis of constitutive relation of viscoelastic materials,it shows that a viscoelastic circular plate waveguide absorber has a good effect on vibration dampling and stimulation.And the results validate that the energy disspation ratio is rela ted with parameters of geometry,material and travelling wave frequency.
基金
国家"九五"攀登计划项目 !( PD952 1 90 9)
湖北省自然科学基金项目 !( 98J0 64)
关键词
MINDLIN板
粘弹性材料
波导吸振器
圆盘
Mindlin's plate theory
viscoelastic materials
waveguide absorber,cylindrical wave
energy dissipation
