Design, simulation and experiment of particle dampers attached to a precision instrument in spacecraft

Aiming at attenuating the vibration of a precision instrument in spacecraft, multiple particle dampers are designed and their damping performances are evaluated. Firstly, the vibrating table test for the primary system under sin-swept excitation is conducted to acquire the vibration characteristic. Then enclosures attached to the installing bracket are designed and fabricated elaborately. Using discrete element-finite element (DE-FE) coupling algorithm, the effects of some system parameters (such as: mass ratio, particle material, numbers of dampers and cavity depth) are investigated to optimize the damping capacity of particle dampers. Furthermore, a series of experiments are conducted to verify the performance of particle dampers under dynamic load. The results indicate that the transfer functions of acceleration in Y and Z direction decrease at 22.58 % and 77.38 % respectively, while only 3.1 % mass of the primary system is attached.

[1]  Jiong Tang,et al.  Granular Damping in Forced Vibration: Qualitative and Quantitative Analyses , 2006 .

[2]  Xiandong Liu,et al.  Coupling Simulation Algorithm of Dynamic Feature of a Plate With Particle Dampers Under Centrifugal Loads , 2011 .

[3]  Wei-Hsin Liao,et al.  Modeling of Granular Particle Damping Using Multiphase Flow Theory of Gas-Particle , 2004 .

[4]  Farzad Naeim,et al.  Performance of tall buildings in Viña del Mar in the 27 February 2010 offshore Maule, Chile earthquake† , 2011 .

[5]  Jem A. Rongong,et al.  The dynamic characterisation of disk geometry particle dampers , 2005 .

[6]  Sami F. Masri,et al.  Response of the impact damper to stationary random excitation , 1973 .

[7]  Sami F. Masri,et al.  An Experimental Investigation of Particle Dampers Under Harmonic Excitation , 1998 .

[8]  Masato Saeki,et al.  IMPACT DAMPING WITH GRANULAR MATERIALS IN A HORIZONTALLY VIBRATING SYSTEM , 2002 .

[9]  Vikram K. Kinra,et al.  PARTICLE IMPACT DAMPING , 1999 .

[10]  D. Els,et al.  Damping of Rotating Beams with Particle Dampers: Experimental Analysis , 2011 .

[11]  Sami F. Masri,et al.  On the stability of the impact damper. , 1966 .

[12]  Kun S. Marhadi,et al.  Particle impact damping: effect of mass ratio, material, and shape , 2005 .

[13]  Sami F. Masri,et al.  Parametric studies of the performance of particle dampers under harmonic excitation , 2009 .

[14]  Hagop V. Panossian,et al.  Structural Damping Enhancement Via Non-Obstructive Particle Damping Technique , 1992 .

[15]  Isao Yokomichi,et al.  Impact Damper with Granular Materials : 2nd Report, Both Sides Impacts in a Vertical Oscillating System , 1985 .

[16]  Yingchun Shan,et al.  Coupling Simulation Algorithm of Discrete Element Method and Finite Element Method for Particle Damper , 2009 .

[17]  Xilin Lu,et al.  Discrete element method simulation and experimental validation of particle damper system , 2014 .

[18]  Zheng Lu,et al.  Studies of the performance of particle dampers attached to a two-degrees-of-freedom system under random excitation , 2011 .

[19]  Zhu Zi-gen.  The Investigation of the Stiffness Characteristics and the Stress-Strain Relation of Metal Rubber , 2002 .

[20]  Emiliano Rustighi,et al.  Optimisation of dynamic vibration absorbers to minimise kinetic energy and maximise internal power dissipation , 2012 .