Performance analysis and comparison of FXLMS and NFXLMS algorithms for active vibration control

2015 International Conference on Applied and Theoretical Computing and Communication Technology (iCATccT) Pub Date : 2015-10-01 DOI:10.1109/ICATCCT.2015.7456854

M. T. A. Hindustani, P. Rao, S. Raja, C. Maheshan

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引用次数: 3

Abstract

Considerable attention has been devoted recently to active vibration control using intelligent materials as actuators. This paper present result on active control schemes for vibration suppression of flexible aluminium cantilever beam with bonded piezoelectric actuators. The PZT patches were surface bonded near the fixed end of flexible cantilever beam. The exciter and actuator are collocated to achieve a minimum phase. The aim of this work is to implement real time control to suppress vibration. To achieve this, the cantilever beam is taken as device under test, an anti-vibration signal is generated using Normalized Filtered-x Least Mean Square (NFXLMS) control algorithm for feedforward adaptive control is analyzed and compared with Filtered-x Least Mean Square (FXLMS) feed-forward control algorithm. Then the active vibration control experimental platform is established to verify the effectiveness of NFXLMS control scheme as well as FXLMS control scheme. The experimental results of FXLMS and NFXLMS are compared by implementing in Lab View 12.

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FXLMS和NFXLMS算法在振动主动控制中的性能分析与比较

近年来，利用智能材料作为致动器的振动主动控制受到了广泛的关注。本文给出了用粘结式压电作动器抑制柔性铝悬臂梁振动的主动控制方案的研究结果。PZT贴片表面粘接在柔性悬臂梁的固定端附近。激振器和致动器配置以实现最小相位。这项工作的目的是实现实时控制，以抑制振动。为此，以悬臂梁为被测装置，采用归一化滤波-x最小均方(NFXLMS)控制算法产生抗振信号，对前馈自适应控制进行分析，并与滤波-x最小均方(FXLMS)前馈控制算法进行比较。然后建立了振动主动控制实验平台，验证了NFXLMS控制方案和FXLMS控制方案的有效性。通过在Lab View 12中实现，比较了FXLMS和NFXLMS的实验结果。

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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2015 International Conference on Applied and Theoretical Computing and Communication Technology (iCATccT)

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