一种改进的约束阻尼梁振动解析模型

在目前已有的模型基础上提出一种改进的约束阻尼的梁振动解析模型。目前主要的约束阻尼解析模型都是假设阻尼层的剪切变形为唯一的阻尼来源，但是其他的变型，包括阻尼层以及约束层的纵向和横向的拉伸压缩也都是阻尼的重要来源。因此，将所有可能的阻尼变形包括剪切、拉伸和压缩集成到一个解析模型里面。这个改进的解析模型可以用来计算多层阻尼结构的自然频率和损耗因子。数值分析验证了此解析模型可以准确地预测结构的动态特性，所以此模型可以被广泛地采用在多层约束阻尼结构预测和设计等实际运用上。

An Enhanced Analytical Model for Constrained Layer Damping

This work proposed an enhanced analytical model for the constrained layer damping based current existing models.At present,the prevailing models assume that there is only shear deformation in the core layer,but actually other type of deformations such as longitudinal and transverse deformation can be the source of damping as well.So,this work proposed a model to include all possible damping sources,and integrate them in one model.This model can be used to predict the natural frequencies and loss factors of ...