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首页> 外文期刊>Journal of intelligent material systems and structures >A Two-stage Floating Raft Isolation System Featuring Electrorheological Damper with Semi-active Static Output Feedback Variable Structure Control
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A Two-stage Floating Raft Isolation System Featuring Electrorheological Damper with Semi-active Static Output Feedback Variable Structure Control

机译：具有电流变阻尼器和半主动静态输出反馈变结构控制的两级浮筏隔离系统

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摘要

In this study, a semi-active static output feedback variable structure control (VSC) strategy is presented to control a two-stage electrorheological (ER) floating raft isolation system. A continuous semi-active static output feedback VSC controller is designed and a bypass ER damper is applied to achieve the best control effect more rapidly and accurately. The sliding surface parameters are determined in terms of the Routh-Hurwitz stability criterion. The optimal vibration attenuation of the intermediate mass is guaranteed due to the control rule that damping force only dissipates the vibration energy of the intermediate mass. The robustness of the control method with respect to parameter variations and the effectiveness of vibration isolation are demonstrated by numerical simulation results. It shows that the designed semi-active static output feedback VSC strategy realized by the ER damper can achieve better performance than that of optimally passive damping even if system parameter uncertainties exist. In addition, the experiment was carried out to demonstrate the practical effectiveness of the presented control scheme in this study. The experimental results are satisfied.
机译：在这项研究中，提出了一种半主动静态输出反馈可变结构控制（VSC）策略，以控制两阶段电流变（ER）浮筏隔离系统。设计了一个连续的半主动静态输出反馈VSC控制器，并应用了一个旁路ER阻尼器，以更快，更准确地实现最佳控制效果。滑动表面参数根据Routh-Hurwitz稳定性准则确定。由于阻尼力仅消耗中间质量的振动能量的控制规则，保证了中间质量的最佳振动衰减。数值仿真结果证明了该控制方法在参数变化方面的鲁棒性和隔振的有效性。结果表明，即使存在系统参数不确定性，通过ER阻尼器实现的半主动静态输出反馈VSC控制策略也能获得比最优被动阻尼更好的性能。此外，进行了实验以证明本研究中提出的控制方案的实际有效性。实验结果令人满意。

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