粘弹性阻尼器采用开尔文模型，将其对结构的作用看作是位移和速度的反馈控制。
The viscoelastic damper was described by the Kelvin model and its action to the platform was regarded as the feedback of displacement and velocity of the response.
对包含中等尺寸的成组分布裂隙的岩体，采用岩体几何损伤本构模型，用监测位移反馈分析法同时辨识岩体弹性模量、地应力及损伤参数。
In this paper, for the joint rock mass with medial size and in-group crack, parameter identification of its geometrical damage model is studied by back analysis of in-situ measured displacement.
该方法采用预测控制消 除柔性机械手的弹性振动，可避免逆动力学和I/O反馈线性化控制遇到的零动力学不稳定问 题。
The predictive control is utilized to damp the flexible vibrations. The instability of the zero dynamics encountered in the inverse dynamics control and I/O feedback linearization can be avoided.
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