Experimental Study on the Damping Effect of Multi-Unit Particle Dampers Applied to Bracket Structure

被引:23
|
作者
Ye, Hang [1 ,2 ]
Wang, Yanrong [1 ,2 ]
Liu, Bin [3 ]
Jiang, Xianghua [1 ,2 ]
机构
[1] Beihang Univ, Sch Energy & Power Engn, Beijing 100191, Peoples R China
[2] Collaborat Innovat Ctr Adv Aeroengine, Beijing 100191, Peoples R China
[3] Acad Mil Med Sci, Ctr Assessment & Demonstrat Res, Beijing 100091, Peoples R China
来源
APPLIED SCIENCES-BASEL | 2019年 / 9卷 / 14期
基金
中国国家自然科学基金;
关键词
multi-unit particle dampers (MUPD); sinusoidal excitation; random excitation; bracket structure; VIBRATION; PERFORMANCE; SYSTEM;
D O I
10.3390/app9142912
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Particle damping (PD) is a passive mean of vibration control in which small metallic or ceramic particles are placed inside a cavity that attached to the primary structure at the place of high vibration amplitudes. The kinetic energy of the primary structure is dissipated by non-elastic impact and friction between particles and walls. This paper represents a series of experimental investigations of the effects of multi-unit particle dampers (MUPD) attached to a bracket structure under harmonic excitation and random excitation. As a platform to investigate the particle damping characteristics under extreme acceleration environments, the bracket structure was featured by an extremely high response on the top, and its maximum acceleration exceeds 50 times gravity acceleration when the bracket structure was subjected to resonance. This broad range of acceleration conditions was far beyond the scope concerned in most previous work. The experimental results show that for a small weight penalty (no more than 8.8%), multi-unit particle damper can reduce the resonance of the primary structure by more than 50%, whether under sinusoidal excitation or random excitation. And the response of the primary structure depends on the type of cavities and filled coefficient. Layering the cavity in the direction of the main vibration can improve the damping capacity of the multi-unit particle damper. And the damper with small particle size and large number of features is suitable for vibration reduction under high acceleration conditions.
引用
收藏
页数:17
相关论文
共 50 条
  • [21] Experimental study on damping mechanism of buffered impact dampers
    Wang, Yan
    Lu, Zheng
    Du, Jiang
    APPLIED ACOUSTICS, 2020, 170
  • [22] Experimental study on the damping mechanism of buffered impact dampers
    缓冲型冲击阻尼器减震机理的试验研究
    1600, Chinese Society of Civil Engineering (53): : 117 - 122
  • [23] Applying fuzzy Particle Swarm Optimization to Multi-unit Double Auctions
    Vetro, Calogero
    Vetro, Francesca
    INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE AND ENGINEERING MANAGEMENT, 2010, 5 (03) : 175 - 181
  • [24] Discrete particle swarm optimization for materials acquisition in multi-unit libraries
    Wu, Yi-Ling
    Shyu, Shyong Jian
    Ho, Tsu-Feng
    Lin, Bertrand M. T.
    2012 IEEE CONGRESS ON EVOLUTIONARY COMPUTATION (CEC), 2012,
  • [25] Experimental Observations of Nonlinear Damping of Additively Manufactured Components with Internal Particle Dampers
    Postell, Matthew
    Kiracofe, Daniel
    Scott-Emuakpor, Onome
    George, Tommy, Jr.
    NONLINEAR STRUCTURES & SYSTEMS, VOL 1, 2023, : 87 - 96
  • [26] Development of logical structure for multi-unit probabilistic safety assessment
    Lim, Ho-Gon
    Kim, Dong-San
    Han, Sang Hoon
    Yang, Joon Eon
    NUCLEAR ENGINEERING AND TECHNOLOGY, 2018, 50 (08) : 1210 - 1216
  • [27] Experimental study of particle damping for a two-dimensional vibrating structure
    Tang, Wei
    Wang, Yan-Rong
    Wang, Zhou-Cheng
    Ahmad, Bhatti Riaz
    Hangkong Dongli Xuebao/Journal of Aerospace Power, 2011, 26 (03): : 628 - 634
  • [28] Experimental comparisons of auctions under single- and multi-unit demand
    Alsemgeest, P
    Noussair, C
    Olson, M
    ECONOMIC INQUIRY, 1998, 36 (01) : 87 - 97
  • [29] Bid pooling in reverse multi-unit Dutch auctions: an experimental investigation
    Philippe Gillen
    Alexander Rasch
    Achim Wambach
    Peter Werner
    Theory and Decision, 2016, 81 : 511 - 534
  • [30] Bid pooling in reverse multi-unit Dutch auctions: an experimental investigation
    Gillen, Philippe
    Rasch, Alexander
    Wambach, Achim
    Werner, Peter
    THEORY AND DECISION, 2016, 81 (04) : 511 - 534