An adaptive modal‐based active control system
An adaptive modal‐based active control system
复制标题
基于自适应模态的主动控制系统
DOI：
10.1121/1.2028204
复制
发表时间：
1990
影响因子：
2.4
通讯作者：
D. Morgan
中科院分区：
文献类型：
--
作者：
D. Morgan
消声和振动的主动控制最近已成为许多研究的主题，并且现在由于自适应滤波技术的出现而得到加强。在另一方面，模态分解的主动控制问题已被证明提供了一些实际的优势，作为独立的模态控制可以最小化的执行器，传感器的数量，以及相应的控制器的维数，以及最小化的控制能量;提供鲁棒性系统参数的不确定性;和，最小化的自适应收敛时间解耦的模态响应。在本文中，详细描述了一个窄带自适应模态主动控制系统，它包含了所有这些功能。讨论的主要议题涉及模态滤波器，致动器预滤波器，空间采样效应，和设计方法。虽然这项工作只涉及窄带干扰问题，这些技术可以很容易地推广到宽带的情况下，通过使用时间fi…
Active control for silencing sound and vibration has recently become the subject of much investigation, and is now being enhanced by the advent of adaptive filtering techniques. On another front, modal decomposition for active control problems has been shown to offer a number of practical advantages, as independent modal control can minimize the number of actuators, sensors, and corresponding dimensionality of the controller, as well as minimize the control energy; provide robustness to system parameter uncertainty; and, minimize the adaptive convergence time by uncoupling the modal responses. In this paper, details are sketched for a narrow‐band adaptive modal‐based active control system that incorporates all of these features. The major topics addressed deal with modal filters, actuator prefilters, spatial sampling effects, and design methodology. Although this work pertains only to the narrow‐band disturbance problem, these techniques can be readily generalized to the wideband case by using temporal fi...