Active vibration control using minimum actuation power
Active vibration control using minimum actuation power
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DOI：
10.1016/j.jsv.2014.06.019
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发表时间：
2015-03
影响因子：
4.7
通讯作者：
K. Chevva;F. Sun;A. Blanc;J. Mendoza
中科院分区：
文献类型：
--
作者：
K. Chevva;F. Sun;A. Blanc;J. Mendoza
最小作动功率是一种新型的振动主动控制策略，介绍了其理论框架. MAP是一种最优控制策略，其通过仅监测和控制经过控制源的输入功率来最小化进入结构的总输入功率。实现MAP控制而不需要关于主激励的幅度的明确知识，这要归功于以下关键观察：当来自主源和次级源的总机械输入功率最小时，来自次级致动器的输入功率的真实的部分为零。压电致动器提供了一种简单且鲁棒的方式来通过测量电功率来估计机械输入功率，而无需额外的误差传感器。研究了主压电片激励、次压电片控制的简支板的MAP理论。MAP理论也被扩展到多频主激励的离散频率是相称的。
Minimum actuation power (MAP) is a novel active vibration control strategy whose theoretical framework is introduced. MAP is an optimal control strategy that minimizes the total input power into the structure by only monitoring and controlling the input power going through the control sources. Implementing MAP control without explicit knowledge about the magnitude of the primary excitation is achieved thanks to the key observation that the real part of the input power from the secondary actuator is zero when the total mechanical input power from the primary and secondary sources is minimum. Piezo-electric actuators provide a simple and robust way to estimate the mechanical input power by measuring the electrical power without additional error sensors. The theory of MAP is developed for a simply supported plate excited by a primary piezo-electric patch actuator and controlled by a secondary piezo-electric patch actuator. The MAP theory is also extended to multi-frequency primary excitation where the discrete frequencies are commensurate.