Active control of vibration and radiated noise in the shaft-shell coupled system of an underwater vehicle

IF 4.3 2区 工程技术 Q1 ENGINEERING, OCEAN
Yaqi Tian , Cong Zhang , Lei Yang
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引用次数: 0

Abstract

Active control is effective in reducing the low-frequency vibration and acoustic radiation of the stern system of an underwater vehicle. This paper theoretically investigates the reduction of vibration and far-field radiation noise in the stern system of an underwater vehicle arising from propeller bearing forces and surface force excitations. Based on the Flügge theory and Euler–Bernoulli theory, an analytical dynamic model of the shaft-shell system is established. The effectiveness of the analytical model is verified through finite element and boundary element methods. The impact of actuator placement, error signal selection, and control strategies on the effectiveness of active control is discussed. A combined active control scheme for the shaft-shell system, involving electromagnetic actuators installed on both the shaft and the shell, is proposed. This scheme effectively controls shaft vibration, shell vibration, and far-field acoustic radiation simultaneously. The theoretical model established in this paper can be used as a reference for low-frequency vibration control of an underwater vehicle.
主动控制水下航行器轴壳耦合系统的振动和辐射噪声
主动控制可有效降低水下航行器船尾系统的低频振动和声辐射。本文从理论上研究了如何减少螺旋桨轴承力和表面力激振所产生的水下航行器艉轴系统的振动和远场辐射噪声。以 Flügge 理论和 Euler-Bernoulli 理论为基础,建立了轴壳系统的分析动力学模型。通过有限元和边界元方法验证了分析模型的有效性。讨论了致动器位置、误差信号选择和控制策略对主动控制效果的影响。提出了一种轴壳系统组合主动控制方案,涉及安装在轴和壳上的电磁致动器。该方案可同时有效控制轴振动、壳振动和远场声辐射。本文建立的理论模型可作为水下航行器低频振动控制的参考。
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
Applied Ocean Research
Applied Ocean Research 地学-工程:大洋
CiteScore
8.70
自引率
7.00%
发文量
316
审稿时长
59 days
期刊介绍: The aim of Applied Ocean Research is to encourage the submission of papers that advance the state of knowledge in a range of topics relevant to ocean engineering.
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