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Comparison of Damping Models for Space Flight Cables

机译：空间飞行电缆阻尼模型的比较

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A model to predict the dynamic response of space flight cables is developed. Despite the influence of cable harnesses on space structures' dynamics, a predictive model for quantifying the damping effects is not available. To further this research, hysteretic and proportional viscous damping were incorporated in Euler-Bernoulli and Timoshenko beam models to predict the dynamic response of a typical space flight cable, using hysteretic dissipation functions to characterize the damping mechanism. The Euler-Bernoulli beam model was used to investigate the hysteresis functions specifically, and it was determined that including hysteretic dissipation functions in the equations of motion was not sufficient to model the additional modes arising in damped cables; additional damping coordinates in the method of Golla, Hughes and McTavish will be necessary to predict damping behavior when using dissipation functions for this case. A Timoshenko model that included viscous and time hysteresis damping was developed as well, and will ultimately be more appropriate for cable modeling due to the inclusion of shear and rotary inertia terms and damping coefficients.
机译：开发了一种模型，用于预测空间飞行电缆的动态响应。尽管电缆线束对空间结构的动态影响，但不可用的预测模型量化阻尼效果。为了进一步这项研究中，迟滞和比例粘性阻尼是在欧拉 - 伯努利和Timoshenko梁模型并入到预测的典型空间飞行电缆的动态响应，使用迟滞耗散功能表征阻尼机构。 euler-bernoulli光束模型用于具体研究滞后函数，并确定包括运动方程中的滞后耗散功能不足以模拟阻尼电缆中产生的额外模式;在Golla，Hughes和MCTAvish方法中的额外阻尼坐标是必要的，以预测这种情况使用耗散功能时的阻尼行为。也开发了包括粘性和时间滞后阻尼的Timoshenko模型，并且由于包含剪切和旋转惯性术语和阻尼系数而最终将更适合电缆造型。

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