Fundamental Studies of AVC with Actuator Dynamics

Fundamental Studies of AVC with Actuator Dynamics
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AVC 与执行器动力学的基础研究

DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
D. Nyawako
D. Nyawako
中科院分区:
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文献类型:
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作者:
E. Hudson;P. Reynolds;D. Nyawako

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近年来,采用质量块作动器的结构人致振动主动控制(AVC)得到了广泛的研究。这主要集中在人行桥和地板上,有证据表明,这项研究正在为传统振动控制措施不适用的AVC商业装置铺平道路。然而,AVC系统的设计是一项复杂的任务,因为致动器动力学的影响,来自更高频率的振动模式的贡献,以及低通和高通滤波器的效果,所述低通和高通滤波器是使控制算法可实现所必需的。这使得AVC设计过程超出了绝大多数土木设计工程师的能力,甚至在计划阶段,以近似什么样的减少可以实现这样的系统。本文考虑了一个广义的系统,并探讨了什么样的性能可以在理论上实现一个完美的AVC系统,然后考虑增加的复杂性的执行器动态演示如何降低性能从最佳。
Active vibration control (AVC) of human-induced vibrations in structures with proof-mass actuators has been subject to much research in recent years. This has predominantly focussed on footbridges and floors and there is some evidence that this research is paving the way for commercial installations of AVC where traditional vibration control measures are not appropriate. However, the design of an AVC system is a complex task because of the influence of actuator dynamics, the contributions from higher frequency modes of vibration and the effect of low and high pass filters that are required to make the control algorithm implementable. This puts the AVC design process beyond the abilities of the vast majority of civil design engineers, even at a scheming stage to approximate what sort of reductions could be achieved by such a system. This paper considers a generalised system and investigates what sort of performance can be achieved in theory by a perfect AVC system, then considers the added complexity of actuator dynamics to demonstrate how this degrades the performance from optimal.
DOI: 10.1016/j.engstruct.2012.03.043
发表时间: 2012-08
影响因子: 5.5
作者:
I. M. Díaz;E. Pereira;M. J. Hudson;P. Reynolds
通讯作者: I. M. Díaz;E. Pereira;M. J. Hudson;P. Reynolds