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首页> 外文期刊>International journal of structural stability and dynamics >ACTIVE VIBRATION CONTROL OF SEISMICALLY EXCITED STRUCTURES BY ATMDS: STABILITY AND PERFORMANCE ROBUSTNESS PERSPECTIVE
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ACTIVE VIBRATION CONTROL OF SEISMICALLY EXCITED STRUCTURES BY ATMDS: STABILITY AND PERFORMANCE ROBUSTNESS PERSPECTIVE

机译：ATMDS对地震激励结构的主动振动控制：稳定性和性能鲁棒性

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摘要

This paper demonstrates the trade-off between nominal performance and robustness in intelligent and conventional structural vibration control schemes; and, proposes a systematic treatment of stability robustness and performance robustness against uncertainty due to structural damage. The adopted control strategies include an intelligent genetic fuzzy logic controller (GFLC) and reduced-order observer-based (ROOB) controllers based on pole-placement and linear quadratic regulator (LQR) conventional schemes. These control strategies are applied to a seismically excited truss bridge structure through an active tuned mass damper (ATMD). Response of the bridge-ATMD control system to earthquake excitation records under nominal and uncertain conditions is analyzed via simulation tests. Based on these results, advantages of exploiting heuristic intelligence in seismic vibration control, as well as some complexities arising in realistic conventional control are highlighted. It has been shown that the coupled effect of spill-over (due to reduction and observation) and mismatch between the mathematical model and the actual plant (due to uncertainty and modeling errors) can destabilize the conventional closed-loop system even if each is alone tolerated. Accordingly, the GFLC proves itself to be the dominant design in terms of the compromise between performance and robustness.
机译：本文演示了在智能和常规结构振动控制方案中名义性能与鲁棒性之间的权衡;并提出了一种针对结构损坏引起的不确定性的稳定性鲁棒性和性能鲁棒性的系统处理方法。所采用的控制策略包括智能遗传模糊逻辑控制器（GFLC）和基​​于极点布置和线性二次调节器（LQR）常规方案的基于降阶基于观察者的（ROOB）控制器。这些控制策略通过主动调谐质量阻尼器（ATMD）应用于地震激励的桁架桥结构。通过模拟测试分析了桥梁-ATMD控制系统在名义和不确定条件下对地震激励记录的响应。基于这些结果，突出了在地震振动控制中利用启发式智能的优势，以及现实的常规控制中产生的一些复杂性。结果表明，溢出（由于减少和观察）和数学模型与实际工厂之间的不匹配（由于不确定性和建模误差）的耦合效应会破坏常规的闭环系统，即使每个系统都是单独的宽容的。因此，就性能和耐用性之间的折衷而言，GFLC证明自己是主要设计。

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