Abstract: Abstract: Regarding the design of viscoelastic damping treatments, constitutive equations of the viscoelastic material and the design method based on modal calculation are discussed. The modal combination method is demonstrated by numerical calculation and experiments. The results indicate that it is a feasible method in the design of viscoelastic damping treatments to reduce the surface vibration and the noise of structures.

Key words: Viscoelastic damping, Modal, Vibration and noise control, Experiment

摘要： 摘 要： 针对粘弹性阻尼层的设计，讨论了粘弹性材料的本构关系和基于模态计算的阻尼设计方法。阐述了基于模态联合方法的设计计算原理，并用仿真算例和实验对该方法进行了验证，结果表明，作为一种应用粘弹性阻尼层进行结构表面减振降噪的设计方法，该种方法是可行的。

关键词: 粘弹性阻尼, 模态, 振动噪声控制, 实验