Disturbance attenuation over a frequency band: A multi- harmonics geometric design approach

IF 4.3 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration Pub Date : 2025-05-11 DOI:10.1016/j.jsv.2025.119204

Jiqiang Wang , Huajiang Ouyang

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引用次数: 0

Abstract

Mature methodologies for disturbance attenuation have been proposed in various situations. These methods can achieve disturbance suppression over the whole frequency band. However, it is often necessitated with disturbance attenuation over a frequency band in many practical engineering applications. Yet the current methods cannot provide satisfactory solutions due to difficulties in (1) handling the effect of physical parameters on system performance; and even importantly (2) obtaining performance limits. In this paper, a multi-harmonics geometric design approach is proposed where the above issues can be handled with direct visual inspections. Specifically, a design framework is developed for disturbance attenuation for multiple harmonics. Optimal solutions are obtained based on a geometric development. The resulting problem of minimal controller is discussed, together with constrained solutions for both sensing constraints and actuation constraints. Finally, the proposed theoretical results are validated through numerical examples with real time implementations.

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一个频带上的干扰衰减：一种多谐波几何设计方法

在各种情况下，已经提出了成熟的干扰衰减方法。这些方法可以实现对整个频段的干扰抑制。然而，在许多实际工程应用中，往往需要在一个频段内进行干扰衰减。然而，目前的方法无法提供令人满意的解决方案，原因在于：(1)难以处理物理参数对系统性能的影响；更重要的是(2)获得性能极限。本文提出了一种多谐波几何设计方法，该方法可以通过直接视觉检测来处理上述问题。具体来说，提出了一种多次谐波干扰衰减的设计框架。基于几何展开得到最优解。讨论了最小控制器问题，并给出了传感约束和驱动约束的约束解。最后，通过实时实现的数值算例验证了理论结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sound and Vibration 工程技术-工程：机械

CiteScore

9.10

自引率

10.60%

发文量

551

审稿时长

69 days

期刊介绍： The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application. JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.