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A time-domain viscous damping model based on frequency-dependent damping ratios

机译:基于频率相关阻尼比的时域粘性阻尼模型

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摘要

This paper introduces. To establish the time-dependent viscous damping model, frequency-dependent damping ratios of the structure under a structural response. To establish the time-dependent viscous damping model, frequency-dependent damping ratios of the structure under a series of steady-state unit impulses corresponding to actual loads are first calculated. For simplicity, the ratios can be incorporated with the static stiffness of the structure to model approximately the impulse induced damping spectrum. According to the nature of the problem, these ratios can be calculated from the theoretical impedance functions and experimental observations.
机译:本文介绍。为了建立时间相关的粘性阻尼模型,结构在结构响应下的频率相关阻尼比。为了建立时间相关的粘性阻尼模型,首先计算结构在一系列与实际载荷相对应的稳态单位脉冲作用下的频率相关的阻尼比。为简单起见,可以将这些比率与结构的静态刚度合并,以近似模拟脉冲感应的阻尼谱。根据问题的性质,可以从理论阻抗函数和实验观察值中计算出这些比率。

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