正交异性粘弹性材料的比阻尼和复模量
SPECIFIC DAMPING CAPACITY AND COMPLEX MODULI OF VISCOELASTIC ORTHOTROPIC MATERIALS
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摘要: 本文基于三维粘弹性分析,把正交异性材料和结构的比阻尼(即Specific Damping Capacity,以下简称SDC)用复模量来表达。另外还导出了把复模量和复柔度转换到松弛函数和懦变函数的简便公式。结构的SDC是用广义位移和广义力来研究的。基于所得的结果提出了计算结构的SDC的方法,并用它计算了几个例子。Abstract: The main purpose of the present paper is to calculate the apecific damping capacity (SDC) of a structure based on the complex moduli and compliances of its material under given harmonic loads and boundary conditions.Firstly,a three-dimensional viscoelastic analysis of complex duli and compliances of orthotropic materials leads to Eds. (23) (24),which express SDC in terms of complex moduli and compliances of the material.
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