具有双重减振结构的带弹性支撑的颗粒碰撞阻尼具有优秀的减振性能。为了探索带弹性支撑的颗粒碰撞阻尼的减振机理，建立了带弹性支撑的颗粒碰撞阻尼系统的动力学模型，在MATLAB环境下编制了仿真计算程序，模拟计算了在带弹性支撑的颗粒碰撞阻尼作用下的悬臂梁的减振性能。理论计算结果与实验结果进行比较，验证了提出的动力学模型。运用该动力学模型讨论了阻尼器腔体间隙比、冲击器质量比、刚度比、功率比的基本规律。得到了以下结论：(1) 带弹性支撑的颗粒碰撞阻尼系统的动力学模型是可靠的；(2) 带弹性支撑的颗粒碰撞阻尼具有优秀的减振性能，远远超过单体碰撞阻尼；(3) 带弹性支撑的颗粒碰撞阻尼最优的结构参数组合：间隙比为0.15，刚度比为0.007。
Abstract
The performance of elastically supported particle impact damper (ESPID) is excellent with double damping structures. To study the damping mechanism of the damper, we establish a dynamical model of the damper. A simulation program is written with MATLAB, which simulates the damping performance of cantilever with the damper. The mentioned dynamic model is verified by comparison of theoretical and testing data. Then using the dynamic model, we discuss the chamber clearance ratio, impactor mass ratio, stiffness ratio, and power ratio. The conclusions are summarized as follow: (1) The dynamic model of the ESPID is reliable; (2) The performance of the ESPID is excellent and far exceed the single impact damper; (3) The best optimized structure parameter combination of the ESPID is: clearance ratio 0.15, stiffness ratio 0.007.
关键词
碰撞阻尼 /
颗粒 /
弹性支撑 /
动力学模型
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Key words
impact damper /
particle /
elastic support /
dynamical model
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参考文献
[1] C.C. Cheng, J.Y. Wang, Free vibration analysis of a resilient impact damper, International Journal of Mechanical Sciences 45(2003)589-604.
[2] J. Cheng, H. Xu, Inner mass impact damper for attenuating structure vibration, International Journal of Solids and Structures 43(2006)5355-5369.
[3] N. Popplewell, S.E. Semercigil, Performance of the bean bag impact damper for a sinusoidal external force,Journal of Sound and Vibration 133(2)(1989)193-223.
[4] 李伟，胡选利，黄协清，陈天宁，柔性约束颗粒阻尼耗能特性研究，西安交通大学学报31(7)(1997) 23-28.
W. Li, X.L. Hu, X.Q. Huang, T.N. Chen, Study on energy dissipation characteristics of granular damping with flexible boundary, Journal of Xi’an Jiao Tong University 31(7)(1997) 23-28.
[5] M. Saeki, Analytical study of multi-particle damping,Journal of Sound and Vibration 281(2005)1133-1144.
[6] C.X. Wong, M.C. Daniel, J.A. Rongong, Energy dissipation prediction of particle dampers, Journal of Sound and Vibration 319(2009)91-118.
[7] B.M. Shah, J.J.Nudell, K.R.Kao,etal. Semi-active particle-based damping systems controlled by magnetic fields, JournalofSoundandVibration 330(2011)182-193.
[8] 鲁正，吕西林，闫维明，颗粒阻尼技术研究综述，振动与冲击32(7)(2013)1-7.
Z. Lu, X.L. Lv, W.M. Yan,A survey of particle damping technology, Journal of Vibration and Shock 32(7)(2013)1-7.
[9] 马崇武，慕青松，颗粒阻尼器对悬臂梁自由振动的被动减振作用，兰州理工大学学报40(3)(2014) 165-168.
C.W. Ma, Q.S. Mu, Passive damping effect of particle damper on free vibration of a cantilever beam, Journal of Lanzhou University of Technology 40(3)(2014) 165-168.
[10] 胡溧，唐喆，徐贤，等. 颗粒阻尼器损耗因子外特性研究，中国机械工程26(15)(2015)2005-2009.
L. Hu, Z. Tang, X. Xu, etal. Study on external features of particle damping loss factor, China Mechanical Engineering 26(15)(2015)2005-2009.
[11] M. Trigui, E. Foltete, N. Bouhaddi, Prediction of the dynamic response of aplate treated by particle impact damper, Mechanical Engineering Science 228(5) (2014)799–814.
[12] M. Gharib, M. Karkoub, Shock-Based Experimental Investigation of the Linear Particle Chain Impact Damper, Journal of Vibration and Acoustics 137 (6)(2015)061012-1-10.
[13] H. Panossian, Non-obstructive particle damping experience and capabilities, Proceedings of SPIE, The International Society for Optical Engineering, 4753(2)(2002) 936-941.
[14]周宏伟，陈前，阻尼颗粒动态特性研究，南京航空航天大学学报40(6)(2008)742-746.
H.W. Zhou, Q. Chen, Experimental Investigation on Damping Particle Dynamic Characters, Journal of Nanjing University of Aeronautics & Astronautics 40(6)(2008)742-746.
[15]杜妍辰，王树林，等代参数法预测颗粒夹击过程中的能量损耗，振动与冲击30(12)(2011)160-163.
Y.C Du, S.L. Wang,Equivalent parameter method for predicting energy dissipation in particle clamping, Journal of Vibration and Shock 30(12)(2011)160-163.
[16]杜妍辰，张铭命，带颗粒减振剂的碰撞阻尼的理论与实验，航空动力学报27(4)(2012)789-794.
Y.C.Du, M.M. Zhang, Theoretical and experimental research on impact damping with fine particles as damping agent, Journal of Aerospace Power 27(4)(2012)789-794.
[17]李海超，王树林，杜妍辰，等. 颗粒碰撞阻尼的时效性研究，振动与冲击32(15)(2013)156-160.
H.C. Li, S.L. Wang, Y.C. Du, etal. Durability of particle impact dampers, Journal of Vibration and Shock 32(15)(2013)156-160.
[18]杜妍辰，刘喆，李海超，带弹性支承的颗粒—钢球碰撞阻尼的实验研究，振动与冲击32(24)(2013)56-60.
Y.C. Du, Z. Lu, H.C. Li, Tests for a particle-ball impact damper with elastic support, Journal of Vibration and Shock 32(24)(2013) 56-60.
[19]杜妍辰，葛静静，带颗粒减振剂的碰撞阻尼器实验，机械设计与研究31(1)(2015)51-54.
Y.C. Du, J.J. Ge, Experimental Research on Impact Damping with the Shock Absorbent, Machine Design and Research 31(1)(2015)51-54.
[20] 杜妍辰，张虹，组合式颗粒阻尼器的减振实验研究，中国机械工程26(14)(2015)1953-1958.
Y.C. Du, H. Zhang, Experimental Research on Combined Particle Impact Damper, China Mechanical Engineering 26(14)(2015)1953-1958.
[21] M.A. Dokainish, H. Elmaraghy, Optimum design parameters for impact dampers, The ASME Publications Design Engineering and Technical Conference 61(1973) 1-7.
[22] N. Popplewell, M. Liao, A simple design procedure for optimum impact dampers, Journal of Sound and Vibration 146(3)(1991)519-526.
[23] P.C. Pinotti, M.M. Sadek, Design procedure and charts for the impact damper, Proceedings of the 11th International Machine Tool and Die Research Conference, Vol.A, 1970, pp.181-195.
[24] K. Li, A.P. Darby, An experimental investigation into the use of a buffered impact damper, Journal of Sound and Vibration 291 (2006) 844-860.
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