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Structural optimal hybrid control strategies employing dynamic dual units: inerter and spring

机译：采用动态双单位的结构最佳混合控制策略：活动和春天

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摘要

The concepts of optimal hybrid control strategies in the time and frequency domains are proposed herein. The time-domain optimal hybrid control (also called GangGang strategy) consists of two dynamic units, an inerter and a spring, which work with different force mechanisms at different time phases of vibrations. The inerter acts on the structure when the vibration phase is accelerated, whereas the spring works when the structure deviates from its initial position. The combination of the two piecewise working units achieves better performance than their individual full-time operations. The working time phases of the two units are complementary, covering the entire vibration period. The hysteresis loops of them are also complementary in the quadrant coordinate system. Owing to the piecewise properties of the two units, the equivalent linearization system (ELS) of such systems is formulated, and a statistical linearization procedure is developed to obtain the equivalent linearization parameters. Then, a parametric study on the equivalent damping is performed through sensitivity analysis and a comparative analysis of the ELS was performed in terms of the standard deviation and peak displacement levels under stationary stochastic excitations. The frequency-domain optimal hybrid control conforms with the concept of intelligent isolation. The inerter and spring units can be switched according to the excitation frequency by an on-off control benefitting structures subjected to excitations with definite frequency range.
机译：本文提出了时间和频域中的最佳混合控制策略的概念。时域最佳混合控制（也称为Ganggang策略）包括两个动态单位，处于活动单元和弹簧，其在不同时间阶段的不同力机制上工作。当振动阶段加速时，处于结构上的作用，而弹簧在结构偏离其初始位置时工作。两个分段工作单元的组合实现了比各个全职操作更好的性能。两个单元的工作时间阶段是互补的，覆盖整个振动周期。它们的滞后环在象限坐标系中也是互补的。由于两个单元的分段性质，配制了这种系统的等效线性化系统（ELS），并且开发了统计线性化过程以获得等效的线性化参数。然后，通过灵敏度分析进行对等效阻尼的参数研究，并且在静止随机激发下的标准偏差和峰位移水平方面进行ELS的比较分析。频域最佳混合动力控制符合智能隔离的概念。可以根据激发频率通过具有明确频率范围的激励的开关控制受益结构来根据激发频率切换活动和弹簧单元。

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