管路脉动有源控制邻频插值次级通道建模方法

PDF(900 KB)

振动与冲击 ›› 2020, Vol. 39 ›› Issue (19) : 101-106.

论文

赵佳锡1,2 ，何琳1,2，徐荣武1,2

作者信息 +

Secondary path modeling method in active control of pipe pulsation using adjacent frequencies interpolation

ZHAO Jiaxi1,2， HE Lin1,2， XU Rongwu1,2

Author information +

文章历史 +

摘要

管路脉动有源控制系统中，泵源工作时产生的线谱噪声会对次级通道辨识结果造成较大误差。为解决泵源运行状态下次级通道建模的问题，理论分析了泵源关闭和启动两种状态下给次级通道建模造成的影响。设计了邻频插值次级通道建模的方法，有效地避开了线谱噪声源。该方法首先辨识得到待建模频率点处相邻两侧频率点的次级通道模型，并提取两侧频率点处模型的幅值和相位，对其线性插值作为处次级通道的幅值和相位特征。在管路脉动有源控制实验系统中，利用邻频插值建模方法进行了建模实验，验证了方法的可行性，并将模型应用在改进后的FxLMS算法中，在实验系统中取得了多根线谱均在25dB以上稳定的控制效果。

Abstract

In an active control system of pipe pulsation, line spectrum noise generated by pump source operation can cause larger errors to the secondary path identification results. Here, in order to solve this problem, effects of shutdown and starting of pump source on the secondary path modeling were theoretically analyzed. The adjacent frequencies interpolation method was proposed to model the secondary path, and effectively avoid the line spectrum noise source. Under the condition of pump source working, two secondary path models at adjacent frequency points on both sides of the frequency point were identified. Amplitudes and phases of the two models were extracted, respectively and then linear interpolations were done for them, respectively. The gained results were taken as amplitude and phase features of the secondary path at the frequency point . The feasibility of the adjacent frequencies interpolation modeling method was verified with the identified results in a test system for active control of pipe pulsation. The proposed modeling method was applied in the improved FxLMS algorithm to obtain the good control effect of multi-line spectrum being stable at level of more than 25 dB in the test system.

导出引用

赵佳锡1,2,何琳1,2，徐荣武1,2. 管路脉动有源控制邻频插值次级通道建模方法[J]. 振动与冲击, 2020, 39(19): 101-106

ZHAO Jiaxi1,2， HE Lin1,2， XU Rongwu1,2. Secondary path modeling method in active control of pipe pulsation using adjacent frequencies interpolation[J]. Journal of Vibration and Shock, 2020, 39(19): 101-106

参考文献

[1] 姜荣俊, 何琳. 有源振动噪声控制技术在潜艇中的应用研究[J]. 噪声与振动控制，2005,4(2):1-6．
JIANG R J, HE L. Application Research of Active Noise and vibration control technology in submarines[J]. Noise and Vibration Control, 2005(2):1-6.
[2] 李树立, 焦宗夏. 液压流体脉动主动控制研究现状与展望[J]. 机床与液压, 2006(9):243-246.
LI S L, JIAO Z X. Research actuality and prospect of active control of hydraulic fluid fluctuation[J]. Machine Tool & Hydraulics, 2006(9):243-246.
[3] 陈克安. 有源噪声控制[M]. 2版. 北京: 国防工业出版社, 2014.
CHEN K A. Active noise control［M］. 2nd ed. Beijing：National Defense Industry Press，2014.
[4] 王震. 基于惯性作动器的管路系统振动主动控制研究[D]. 中国舰船研究院, 2014.
WANG Z. Research on active vibration control of piping system by using interial actuator [D]. China Ship Science Research Center, 2014
[5] Brevart B J, Fuller C R. Active control of axisym- metric wave propagation in fluid-filled elastic cylindrical shells.[J]. Acoustical Society of America Journal, 1993, 90(3):1467-1475.
[6] Julien M. Active control of pressure pulsations in piping systems[R]. University of Karlskrona/Ronneby. 1998.09
[7] 孙运平, 孙红灵, 张维,等. 充液管路低频线谱噪声有源控制试验研究[J]. 中国舰船研究, 2017, 12(4):122-127.
SUN Y P, SUN H L, ZHANG W. Experimental research into active control of low-frequency line spectral disturbances in liquid-filled pipe [J]. Chinese Journal of Ship Research, 2017, 12(4):122-127.
[8] Wang .L. Active control of fluid-borne noise [D]. University of Bath, 2008.
[9] Pan .M. Active control of pressure pulsation in a switched inertance hydraulic system [D]. University of Bath, 2012.
[10] 李树立. 液压流体脉动分布式振动主动控制技术研究[D]. 北京航空航天大学, 2017.
Li S L. Research on the distribute active vibration control of hydraulic fluid pulsations[D]. Beihang University, 2006.
[11] 赵佳锡, 何琳, 徐荣武, 等. 基于旁支式次级源的舰船液压管路低频脉动有源衰减[J]. 国防科技大学学报, 已录用.
Zhao J X, He L, Xu R W, etc. Acitve control of pressure pulsation in marine hydraulic system using by-pass secondary source [J]. Journal of National University of Defense Technology, Accepted.
[12] 罗志昌. 流体网络理论[M]. 北京: 机械工业出版社, 1988:260-271.
LUO Z C. Fluid net theory [M]. Mechanical Industry Press, 1988:1-456
[13] Zhao J X, He L, Xu R W, ect. Active Control of Pressure Pulsation in Marine Hydraulic System Using Mutiple Secondary Sources [C]. 26th International Conference on Sound and Vibration, Montreal, 2019.
[14] 王进军, 陈克安, 王健. 基于延迟LMS算法的管道噪声有源控制实验研究[J]. 电声技术, 2005(9):56-60.
WANG J J, CEHN K A, WANG J. Experimental Studies on Active Duct Noise Control Based on the Delayed-LMS Algorithm [J]. Audio Engineering, 2005(9):56-60