磁悬浮式动力吸振器减振性能的研究
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摘要
研究了一种结构紧凑的磁悬浮式动力吸振器,与传统的机械式吸振器相比具有非机械接触,结构简单,使用寿命长等优点。分析了磁悬浮式动力吸振器的系统结构和吸振原理,建立了磁悬浮式吸振系统的理论模型。通过仿真得出在磁悬浮式动力吸振器工作前后主系统的振动对比;当吸振器的固有频率与外部干扰力频率一致时,吸振器的振动可以满足机械结构的要求。最后通过实验研究,验证了磁悬浮式动力吸振器具有一定的减振效果,与理论相吻合。
A kind of magnetic suspension dynamic vibration absorber with compact structure is discussed.Compared with the traditional mechanical vibration absorber,it has the following advantages:no mechanical contact,simple structure and long service life.The system structure and working principle of the magnetic suspension dynamic vibration absorber are analyzed and the theoretical model of vibration absorber system is established.The comparison of the vibration situation of main system between before working and after working of the vibration absorber is presented by simulation.The paper proves that the amplitude of vibration absorber can meet the requirements of mechanical structure when the damping effect is the best.Experiments are conducted to prove the effectiveness of vibration reduction performance of magnetic suspension dynamic vibration absorber,which is consistent with the theory.
A kind of magnetic suspension dynamic vibration absorber with compact structure is discussed.Compared with the traditional mechanical vibration absorber,it has the following advantages:no mechanical contact,simple structure and long service life.The system structure and working principle of the magnetic suspension dynamic vibration absorber are analyzed and the theoretical model of vibration absorber system is established.The comparison of the vibration situation of main system between before working and after working of the vibration absorber is presented by simulation.The paper proves that the amplitude of vibration absorber can meet the requirements of mechanical structure when the damping effect is the best.Experiments are conducted to prove the effectiveness of vibration reduction performance of magnetic suspension dynamic vibration absorber,which is consistent with the theory.
引文
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[10]张洪田,李玩幽,刘志刚.电动式主动吸振技术研究[J].振动工程学报,2001,14(1):113—117.Zhang Hongtian,Li Wanyou,Liu Zhigang.Study on active electro-dynamic vibration absorber[J].Journal of Vibration Engineering,2001,14(1):113—117.
[2]高强,房祥波,赵艳青,等.变质量动力吸振器及其减振性能[J].长安大学学报(自然科学版),2013,33(05):109—112.Gao Qiang,Fang Xiangbo,Zhao Yanqing,et al.Variable mass dynamic vibration absorber and its performance of vibration reduction[J].Journal of Chang’an University(Natural Science Edition),2013,33(05):109—112.
[3]张炳康,何立东,杨秀峰,等.环形动力吸振器进行转子振动控制的实验[J].航空动力学报,2015,30(4):972—978.Zhang Bingkang,He Lidong,Yang Xiufeng,et al.Experiment on vibration control of rotor with ring dynamic vibration absorber[J].Journal of Aerospace Power,2015,30(4):972—978.
[4]赵存生,李海峰,朱石坚.悬臂梁动力吸振器的理论分析与试验[J].噪声与振动控制,2015(4):175—178.Zhao Cunsheng,Li Haifeng,Zhu Shijian.Theoretical analysis and experimental study of cantilever beam type dunamic vibration absorbers[J].Noise and Vibration Control,2015(4):175—178.
[5]Franchek M A,Ryan M W,Bernhard R J.Adaptive passive vibration control[J].Journal of Sound and Vibration,1995,4(2):565—585.
[6]Humphris R R,Kelm R D,Lewis D W,et al.Effect of control algorithms on magnetic journal bearing properties[J].Journal of Engineering for Gas Turbines&Power,1986,108(4):624—632.
[7]胡业发,王晓光,吴华春.磁力轴承支承特性的研究与仿真[J].武汉理工大学学报(信息与管理工程版),2001,23(4):96—98.Hu Yefa,Wang Xiaoguang,Wu Huachun.Research and simulation of supportive characteristics of active magnetic bearings[J].Journal of Wut(Information&Management Engineering),2001,23(4):96—98.
[8]Lee C Y,Chen C Y.Experimental application of a vibration absorber in structural vibration reduction using tunable fluid mass driven by micropump[J].Journal of Sound&Vibration,2015,348(5—6):496—503.
[9]陈渝光,李太福,肖蕙蕙,等.基于磁悬浮刚度控制器与可调阻尼器的智能减振器研究[J].重庆工学院学报,2001,15(2):62—64.Chen Yuguang,Li Taifu,Qiao Huihui,et al.Study on intelligent absorber based on magnetic suspension rigidity controller and damper[J].Journal of Chongqing Institute of Technology,2001,15(2):62—64.
[10]张洪田,李玩幽,刘志刚.电动式主动吸振技术研究[J].振动工程学报,2001,14(1):113—117.Zhang Hongtian,Li Wanyou,Liu Zhigang.Study on active electro-dynamic vibration absorber[J].Journal of Vibration Engineering,2001,14(1):113—117.