A model that captures the weak frequency sensitivity of elastic hysteretic damping is proposed for the time-domain simulation of structures with multiple degrees of freedom (MDOF) under free or forced vibration. The model is based on a recently proposed modification to the conventional single degree of freedom (SDOF) viscous damping model, utilising a correction factor computed based on the local instantaneous response to adjust the damping coefficient such that the dissipated energy remains insensitive to the frequency characteristics of the motion. The model compares favourably to the well-established viscous (incl. Collar’s frequency correction), Rayleigh and Reid MDOF models, is applicable to any type of loading and, unlike other classes of damping models, such as Rayleigh, modal, Bouc-Wen, Biot, and Collar/Neumark, does not require extensive calibration, knowledge of the past history of motion, or a priori knowledge of the excitation characteristics and frequency.

提出了一种捕获弹性滞后阻尼的弱频率灵敏度的模型，用于自由振动或强迫振动下具有多个自由度（MDOF）的结构的时域仿真。该模型基于最近提出的对传统单自由度（SDOF）粘性阻尼模型的修改，利用基于局部瞬时响应计算的校正因子来调整阻尼系数，从而使耗散的能量对频率特性不敏感议案。该模型与公认的粘性模型（包括Collar的频率校正）相比具有优势，Rayleigh和Reid MDOF模型适用于任何类型的载荷，并且与其他类别的阻尼模型（如Rayleigh，模态，Bouc-Wen，比奥和衣领/纽马克，