基于原点速度反馈的推进轴系横向振动传递控制研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (9) : 115-122.

论文

谢溪凌1,2，覃会1,2，徐颖蕾1,2，张志谊1,2

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Active control of propulsion shafting’s lateral vibration with active stern support and local velocity feedback control

XIE Xiling1,2, QIN Hui1,2, XU Yinglei1,2, ZHANG Zhiyi1,2

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摘要

螺旋桨脉动力诱导的轴系-壳体耦合振动是水下航行器低频振动声辐射的重要原因之一。针对推进轴系横向振动传递控制，提出一种基于原点速度反馈的主动艉支承控制方法。建立包含六自由度主动艉支承的螺旋桨-轴系-壳体耦合振动模型，考虑原点速度反馈策略，计算主动支承对推进轴系横向振动传递的控制效果。分析结果表明，将六自由度主动艉支承用于横向振动传递抑制，能够在0-200Hz内有效降低系统固有振动幅值，而且与推力轴承处主动控制相结合，在重点模态频率处可取得更优的控制效果。

Abstract

The shafting-hull coupled vibration induced by the propeller fluctuating thrust forces is an important source of the low frequency radiation of submarines. An active control method, which uses active stern support and local velocity feedback control, is presented to suppress the transmission of lateral vibration of the propulsion shafting. The dynamic model of the propeller-shafting-hull coupled system embedded with the 6-DOF active stern support is established with the finite element method and the performance of the local velocity feedback control is evaluated. The results demonstrated that the performance of the lateral vibration control with the active stern support is prominent and a noticeable attenuation in the frequency range of 0-200Hz is achieved. In addition, the active control method is able to obtain a better attenuation at some critical mode frequencies with the combined control at the stern support and the thrust bearing.

导出引用

谢溪凌1,2，覃会1,2，徐颖蕾1,2，张志谊1,2. 基于原点速度反馈的推进轴系横向振动传递控制研究[J]. 振动与冲击, 2019, 38(9): 115-122

XIE Xiling1,2, QIN Hui1,2, XU Yinglei1,2, ZHANG Zhiyi1,2. Active control of propulsion shafting’s lateral vibration with active stern support and local velocity feedback control[J]. Journal of Vibration and Shock, 2019, 38(9): 115-122

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