针对低频隔振问题，基于动力反共振原理设计加工了一种双层液压式动力反共振隔振器。建立了液压式动力反共振隔振器模型，研究了双层液压式隔振器隔振性能和隔振频率的影响因素，加工了液压式隔振器原理样机并进行了扫频试验。研究结果表明，叠加方式能显著影响第二个共振点的位置，进而影响隔振效果；相比于单频动力反共振隔振器，通过叠加而成的双层隔振器可以通过调节参数显著提高隔振性能与隔振带宽。
Abstract
double-layer hydraulic dynamic anti resonance isolator was designed and manufactured based on the principle of dynamic anti resonance to address the issue of low-frequency vibration isolation. A hydraulic power anti resonance isolator model was established, and the factors affecting the isolation performance and frequency of the double-layer hydraulic isolator were studied. A prototype of the hydraulic isolator principle was processed and frequency sweep tests were conducted. The research results indicate that the stacking method can significantly affect the position of the second resonance point, thereby affecting the isolation effect; Compared to single frequency dynamic anti resonance isolators, double-layer isolators formed by superposition can significantly improve isolation performance and isolation bandwidth by adjusting parameters.
关键词
低频隔振 /
动力反共振;传递率
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Key words
Low frequency vibration isolation /
Dynamic anti resonance /
Transmittal rate
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参考文献
[1] Flannelly WG．Dynamic anti-resonant vibration isolator: U.S.Patent 3,322,379[P].1964.
[2] Onur Özyar, Çetin Yılmaz. A self-tuning adaptive-passive lever-type vibration isolation system [J]. Journal of Sound and Vibration, 2021,505:116-159.
[3] 顾仲权.动力反共振隔振[J].噪声与振动控制,1989,06:36-40.
GU Zhong-quan. Dynamic Anti Resonance Isolation [J]. Noise and Vibration Control, 1989 ,06: 36-40.
[4] 冯志壮，钱峰，程起有． 新型液弹隔振器设计与仿真［J］． 航空学报，2017，38(增刊1) : 85-91．
FENG Zhi-zhuang，QIAN Feng，CHENG Qi-you．Design and simulation for new fluid elastomer vibration isolator [J]．Acta Aeronautica et Astronautica Sinica,2017,38( Sup1) : 85－91.
[5] 刘晨, 冯志壮, 邢龙涛,双频隔振系统隔振性能参数影响性研究 [J]. 电子制作, 2021,03:55-59.
LIU Chen, FENG Zhi-zhuang, XING Lon-gtao, "Research on the Influence of Isolation Performance Parameters of Dual Frequency Isolation Systems [J]. Electronic Manufacturing, 2021, 03: 55-59.
[6] 邓景辉. 组合式液弹隔振器传递特性分析及试验研究[J]. 西北工业大学学报, 2022, 40(01):182-188.
DENG Jing-hui Analysis and experimental study on the transmission characteristics of a combined liquid elastic isolator [J].Journal of Northwest University of Technology, 2022, 40 (01): 182-188.
[7] LIU Niu-niu， LI Chen-yang． Application of a dynamic antiresonant vibration isolator to minimize the vibration transmission in underwater vehicles [J].Journal of Vibration and Control,2018,24( 17) : 3819-3829．
[8]李贞坤,程起有,钱峰.液弹隔振器非线性传递特性研究[J/OL].应用力学学报,2023,36:1-8.
LI Zhen-kun, CHENG Qi-you, QIAN Feng, et al. Investigation of the nonlinear displacement transfer rate of fluid-elastic isolators [J/OL]. Journal of Applied Mechanics, 2023,36:1-8.
[9]范德礼,吴文敏. 可调频液压式动力反共振隔振器动力学分析及优化设计[J].振动与冲击,2019,38(14):33-36.
FAN De-li, WU Wen-min Dynamic analysis and optimization design of frequency adjustable hydraulic power anti resonance vibration isolator [J]. Journal of Vibrationand Shock, 2019,38 (14): 33-36.
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