期刊文献+

非阻塞性颗粒阻尼的离散元法 被引量:4

A non-obstructive particle damping model of DEM
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摘要 提出了一种研究颗粒阻尼减振特性的离散元算法,建立了离散元法(DEM)数学模型.通过分析颗粒间以及颗粒与容器壁间的相互作用规律,能较准确地预测颗粒阻尼的减振特性.与实验结果进行了比较,验证了该离散元数学模型的正确性.利用离散元数学模型来研究颗粒阻尼结构属性的改变对其阻尼减振特性的影响,结果表明,质量比和材料密度都对颗粒阻尼的减振特性有影响. The discrete element method that is used to study the damping characteristics of NOPD is proposed,which can forecast the damping characteristics of NOPD by analyzing the particle-particle and particle-wall interaction.The validity of this numerical method was examined by a comparison of the experimental results.The discrete element simulation system was further used to study the influence of the changes of NOPD parameters to the damping characteristics.It is shown that the mass ratio and material density both influence the damping performance.
出处 《华中科技大学学报(自然科学版)》 EI CAS CSCD 北大核心 2008年第7期81-84,共4页 Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金 国家自然科学基金资助项目(50075029)
关键词 非阻塞性颗粒阻尼 离散元法 减振特性 质量比 材料密度 non-obstructive particle damping(NOPD) discrete element method(DEM) damping characteristics mass ratio material density
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参考文献8

  • 1Panossian H V. Structural damping enhancement via non-obstructive particle damping technique[J]. Journal of Vibration and Acoustics, 1992, 114:101-105.
  • 2Saluena C, Poschel T, Esipov S E. Dissipative properties of vibrated granular materials[J]. Phys Rev E, 1999, 59(4):4 422-4 425.
  • 3Paplou A, Masri S F. Response of impact dampers with granular materials under random excitation[J]. Earthquake Engineering and Structural Dynamics, 1996, 25:253-267.
  • 4Friend R D, Kinra V K. Particle impact damping[J]. J Sound Vib, 2000, 233(1): 93-118.
  • 5Mao K M, Wang Mi Yu, Xu Z W, et al. DEM simulation of article damping[J]. Powder Technology, 2004, 142: 154-165.
  • 6Cundall P, Strack O. A distinct element model for granular assemblies [J]. Geotechnique, 1979 (29): 47-65.
  • 7李伟,朱德懋,胡选利,黄协清.不连续散粒体的离散单元法[J].南京航空航天大学学报,1999,31(1):85-91. 被引量:23
  • 8Saeki M. Impact damping with granular materials in a horizontally vibrating system[J].Journal of Sound and Vibration, 2002, 251(1) : 153-161.

二级参考文献4

  • 1魏群.岩土工程中散体元的基本原理、数值方法及实验研究:学位论文[M].北京:清华大学水电系,1990..
  • 2李伟.冲击减振理论的离散单元法研究及应用:学位论文[M].西安:西安交通大学机械工程学院,1997..
  • 3李伟,学位论文,1997年
  • 4魏群,学位论文,1990年

共引文献22

同被引文献32

  • 1鲁正,吕西林,闫维明.颗粒阻尼器减震控制的试验研究[J].土木工程学报,2012,45(S1):243-247. 被引量:20
  • 2夏兆旺,单颖春,刘献栋.基于悬臂梁的颗粒阻尼实验[J].航空动力学报,2007,22(10):1737-1741. 被引量:26
  • 3Panossian H V.Structural damping enhancement via nonobstructive particle damping technique[J].Journal of Vibration and Acoustics,1992,114 (1):101-105.
  • 4Mao K M,Wang M Y,Xu Z W,et al.DEM simulation of particle damping[J].Power Technology,2004,142(2-3):154-165.
  • 5Friend R D,Kinra V K.Particle impact damping[J].Journal of Sound and Vibration,2000,233(1):93-118.
  • 6Cundall P A,Strack O D L.A discrete numerical model for granular assemblies[J].Geotechnique,1979,29 (1):47-65.
  • 7Lu Z,Lu X,Masri S F.Studies of the performance of particle dampers under dynamic loads[J].Journal of Sound and Vibration,2010,329(26):5415-5433.
  • 8Simonian S S,Camelo V S,Breanan S,et al.Disturbance suppression using particle dampers[C].49th AIAA/ASME/ ASCE/AHS/ASC Structures,Structural Dynamics,and Materials Conference,2008,Schaumburg IL.
  • 9Elmekati A,Shamy U E.A practical co-simulation approach for multiscale analysis of geotechnical systems[J].Computers and Geotechnics,2010,37(4):494-503.
  • 10Bai X M,Shah B,Keer L M,et al.Particle dynamics simulations of a piston-based particle damper[J].Powder Technology,2009,189(1):115-125.

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