一种天线馈源结构在扰动力影响下的振动控制方法

徐秀栋; 李锐; 程杰; 李梅; 禹伟荣; 吴少彤; 刘尧; 刘家玮

doi:10.11884/HPLPB202537.250090

一种天线馈源结构在扰动力影响下的振动控制方法

doi: 10.11884/HPLPB202537.250090

徐秀栋^{1, 2,},
李锐^{1, 2},
程杰^{1, 2},
李梅^{1, 2},
禹伟荣^{1, 2},
吴少彤^{1, 2},
刘尧^{1, 2},
刘家玮^{1, 2}

1.
西北核技术研究所，西安 710024
2.
先进高功率微波技术重点实验室，西安 710024

详细信息

作者简介:
徐秀栋，xuxiudong@nint.ac.cn

中图分类号: TM85
计量
- 文章访问数: 18
- HTML全文浏览量: 9
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2025-04-22
- 修回日期: 2025-06-15
- 录用日期: 2025-06-05
- 网络出版日期: 2025-07-07

The vibration control method for structure of feed source under external excitation

Xu Xiudong^{1, 2
,},
Li Rui^{1, 2},
Cheng Jie^{1, 2},
Li Mei^{1, 2},
Yu Weirong^{1, 2},
Wu Shaotong^{1, 2},
Liu Yao^{1, 2},
Liu Jiawei^{1, 2}

1.
Northwest Institute of Nuclear Technology, Xi’an 710024, China
2.
Key Laboratory of Advanced Science and Technology on High Power Microwave, Xi’an 710024, China

摘要

摘要: 高功率微波系统上使用的固面天线一般为悬臂结构，在有外界扰动力情况下，很难保持馈源结构较低加速度响应的要求。传统的动力吸振方法可以较好地控制悬臂结构的振动响应，但是这种方法仅能在一个有限的频率范围内抑制悬臂结构的响应加速度。为了解决上述问题，提出了一种主动控制与被动吸振相结合的最优振动控制方法。通过分析和仿真固面天线的结构模型得到主动吸振器最佳的安装位置，然后根据简化被动吸振器数学模型计算出最优的参数，在此基础上，将滑模控制方法与主动吸振方法相结合设计了相应的控制律，同时，证明了控制律的稳定性。仿真分析了存在主动控制吸振器情况下的两自由度振动系统，得出天线馈源结构随时间的振动响应情况。结果表明：该方法可以有效降低在外界扰动下馈源结构顶部的加速度响应，顶部最大振幅相比无控制情况可降低95%以上，馈源结构在该控制器作用下处于较稳定的状态。
- 馈源 /
- 悬臂 /
- 振动控制 /
- 加速度响应 /
- 滑模控制
Abstract: The structure of cantilever has existed in solid surface antenna for high power microwave system. It is difficult to maintain the low acceleration for feed source structure of solid surface antenna during external vibration excitation. The traditional dynamic vibration absorber has a good control effect on the structure of cantilever. However, the application of traditional dynamic vibration absorber is limited to small range of frequency. In order to improve above problem, one kind of active vibration control method combing with optimal passive absorber is provided in this paper. The best installed position of dynamic absorber is obtained by analyzing and simulating the model of solid surface antenna. Then, the optimal parameters are calculated according to the mathematical model of simplified passive dynamic absorber system. Furthermore, the sliding mode control parameters were obtained by considering the external excitation through active absorber method. The stability of sliding mode control method was demonstrated. This control method combined sliding mode control with active control absorber, which can reduce the vibration response of antenna effectively. This paper simulated the two-degree-of-freedom vibration system with active control absorber, which gave time-domain vibration response of antenna. The top point displacement of antenna under the predetermined excitation was reduced more than 95% by comparing the condition of no any strategy. It can be seen that feed source structure is in a more stable state under the action of this controller.
- feed source /
- cantilever /
- vibration control /
- acceleration response /
- sliding mode control

HTML全文

图 1 典型微波系统构成

Figure 1. The structure of microwave system

(1-pulsed power source; 2-microwave source; 3-waveguide; 4-structure of feed source)

下载: 全尺寸图片幻灯片

图 2 两自由度动力吸振模型

Figure 2. The simplified dynamic absorber model of antenna

下载: 全尺寸图片幻灯片

图 3 两种类型的主动动力吸振系统

Figure 3. Two active absorber models

下载: 全尺寸图片幻灯片

图 4 变刚度吸振器结构

Figure 4. The structure of variable stiffness absorber

下载: 全尺寸图片幻灯片

图 5 馈源结构的实际有限元模型

Figure 5. Finite element model of feed source structure

(1-top point of antenna; 2-point 1; 3-point 2; 4-point 3; 5-point 4; 6-fixed plane)

下载: 全尺寸图片幻灯片

图 6 吸振器位于不同安装位置时馈源口的加速度响应对比图

Figure 6. Acceleration response of top point for various absorber fixed positions

下载: 全尺寸图片幻灯片

图 7 无吸振器情况下在外界扰动力作用下馈源口位移变化曲线

Figure 7. The displacement of top point for external force with no absorber

下载: 全尺寸图片幻灯片

图 8 被动吸振器位于最优位置时外界扰动力作用下馈源口位移变化曲线

Figure 8. The vibration displacement of top point for external force with optimal passive absorber

下载: 全尺寸图片幻灯片

图 9 主动吸振器位于最优位置时外界扰动力作用下馈源口位移变化曲线

Figure 9. The displacement of top point for external force with optimal active absorber

下载: 全尺寸图片幻灯片

图 10 在主动吸振器作用下吸振块与馈源结构之间刚度变化曲线

Figure 10. The stiffness between absorber with feed source structure for optimal active controller

下载: 全尺寸图片幻灯片

参考文献(18)

[1]	Rogers C A, Stutzman W L, Campbell T G, et al. Technology assessment and development of large deployable antennas[J]. Journal of Aerospace Engineering, 1993, 6(1): 34-54. doi: 10.1061/(ASCE)0893-1321(1993)6:1(34)
[2]	Ribeiro E A, Pereira J T, Bavastri C A. Passive vibration control in rotor dynamics: optimization of composed support using viscoelastic materials[J]. Journal of Sound and Vibration, 2015, 351: 43-56. doi: 10.1016/j.jsv.2015.04.007
[3]	Koo J H, Ahmadian M. A qualitative analysis of groundhook tuned vibration absorbers for controlling structural vibrations[J]. Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, 2002, 216(4): 351-359. doi: 10.1243/146441902320992446
[4]	Fisco N R, Adeli H. Smart structures: part Ⅰ-active and semi-active control[J]. Scientia Iranica, 2011, 18(3): 275-284. doi: 10.1016/j.scient.2011.05.034
[5]	Fisco N R, Adeli H. Smart structures: part Ⅱ-hybrid control systems and control strategies[J]. Scientia Iranica, 2011, 18(3): 285-295. doi: 10.1016/j.scient.2011.05.035
[6]	Viguié R, Kerschen G. Nonlinear vibration absorber coupled to a nonlinear primary system: a tuning methodology[J]. Journal of Sound and Vibration, 2009, 326(3/5): 780-793.
[7]	Oueini S S, Nayfeh A H, Pratt J R. A nonlinear vibration absorber for flexible structures[J]. Nonlinear Dynamics, 1998, 15(3): 259-282. doi: 10.1023/A:1008250524547
[8]	Pappalardo C M, Guida D. Development of a new inertial-based vibration absorber for the active vibration control of flexible structures[J]. Engineering Letters, 2018, 26(3): 372-385.
[9]	Huang S J, Lian R J. A dynamic absorber with active vibration control[J]. Journal of Sound and Vibration, 1994, 178(3): 323-335. doi: 10.1006/jsvi.1994.1489
[10]	Huang Y M, Hung S C. Analytical study of an active piezoelectric absorber on vibration attenuation of a plate[J]. Journal of Sound and Vibration, 2011, 330(3): 361-373. doi: 10.1016/j.jsv.2010.08.025
[11]	Gouaisbaut F, Dambrine M, Richard J P, et al. Robust control of delay systems: a sliding mode control design via LMI[J]. System & Control Letters, 2002, 46(4): 219-230.
[12]	Yan Tinghao, Ren Chuanbo, Zhou Jilei, et al. The study on vibration reduction of nonlinear time-delay dynamic absorber under external excitation[J]. Mathematical Problems in Engineering, 2020, 2020: 8578596.
[13]	Chen Chen, Xiong Jian, Wan Zhiqiang, et al. A time delay compensation method based on area equivalence for active damping of an LCL-type converter[J]. IEEE Transactions on Power Electronics, 2017, 32(1): 762-772. doi: 10.1109/TPEL.2016.2531183
[14]	Yang Yiqing, Gao Haoyang, Ma Wenshuo, et al. Design of a turning cutting tool with large length-diameter ratio based on three-element type vibration absorber[J]. Journal of Engineering Manufacture, 2020, 234(6/7): 1032-1043.
[15]	Tehrani G G, Dardel M, Pashaei M H. Passive vibration absorbers for vibration reduction in the multi-bladed rotor with rotor and stator contact[J]. Acta Mechanism, 2020, 321: 597-623.
[16]	Moradi H, Bakhtiari-Nejad F, Movahhedy M R, et al. Stability improvement and regenerative chatter suppression in nonlinear milling process via tunable vibration absorber[J]. Journal of Sound and Vibration, 2012, 331(21): 4668-4690. doi: 10.1016/j.jsv.2012.05.032
[17]	Komatsuzaki T, Iwata Y, Ringe H, et al. Adaptive tuned dynamic vibration absorber with variable stiffness property using magneto-rheological elastomers[C]//Proceedings of the ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. 2013: 16-18.
[18]	Sayyad F B, Gadhave N D. Variable stiffness type magnetic vibration absorber to control the vibration of beam structure[J]. Journal of Vibration and Control, 2014, 20(13): 1960-1966. doi: 10.1177/1077546313481237