论文部分内容阅读
为了将复阻尼理论应用于时步积分计算,本文根据文献[1]提供的建立时域复阻尼本构的思路,首先讨论了通过组合标准线性体构成与复阻尼理论在具有工程意义的频段内等效的时城本构方程的方法,即通过适当选取本构参数使滞回阻尼比和弹性模量与复阻尼理论相应值基本保持一致。然后,用一维波动数值模拟实例,对比了本文建议的本构方程、频域复阻尼理论及粘性阻尼本构对计算结果的影响,论证了本文建议的本构方程应用于地震工程的可行性。
In order to apply the complex damping theory to the time-step integral calculation, based on the idea of establishing the complex damping constitutive in the time domain provided in [1], we first discuss how the complex damping theory can be used in the engineering significance band by combining the standard linear body composition and the complex damping theory The equivalent city constitutive equation method, that is through the appropriate choice of constitutive parameters so that the hysteresis damping ratio and elastic modulus and the complex damping theory corresponding values basically consistent. Then, with a one-dimensional wave numerical simulation example, the proposed constitutive equation, the complex damping theory in frequency domain and the viscous damping constitutive model are contrasted. The feasibility of applying the proposed constitutive equation to seismic engineering is demonstrated .