Particle impact damping technology: modelling and applications

2021 ◽  
Author(s):  
Nazeer Ahmad ◽  
Ankur Kumar Gupta ◽  
Sujata ◽  
D Poomani
Keyword(s):  
Particle Impact ◽  
Impact Damping

Experimental study of passive vibration suppression using absorber with spherical ball impact damper

2016 ◽  
Vol 231 (17) ◽  
pp. 3193-3201 ◽  
Author(s):  
Riadh Chaari ◽  
Fathi Djemal ◽  
Fakher Chaari ◽  
Mohamed Slim Abbes ◽  
Mohamed Haddar
Keyword(s):  
Vibration Suppression ◽  
Industrial Applications ◽  
Design Parameters ◽  
Particle Impact ◽  
Ball Impact ◽  
Impact Damper ◽  
Ball Size ◽  
Wide Range ◽  
The Impact ◽  
Impact Damping

Impact dampers are efficient in many industrial applications with a wide range of frequencies. An experimental analysis of the impact damping of spherical balls is investigated to simplify the particle impact damping design and improve the vibration suppression. The objective of the study is to analyze some of the design parameters of impact damper using spherical balls. The experimental investigation consists to test the effect of the ball size for each mass level, the number of balls for each size level and different exciting force levels on vibrations of the main structure. The parametric study provided useful information to understand and optimize Particle Impact Damping design.

Particle Impact Damping in Two Dimensions

2009 ◽  
Vol 413-414 ◽  
pp. 415-422 ◽  
Author(s):  
Riaz Ahmad Bhatti ◽  
Yan Rong Wang ◽  
Zhou Cheng Wang
Keyword(s):  
Two Dimensions ◽  
Particle Impact ◽  
Structural Damping ◽  
Metallic Particles ◽  
Acceleration Amplitude ◽  
Oblique Impacts ◽  
Impact Phenomena ◽  
Linear Damping ◽  
Good Agreement ◽  
Impact Damping

Particle impact damping (PID) is a technique of achieving high structural damping with small metallic particles embedded within a cavity that is attached to vibrating structure. This is a highly non-linear damping mechanism in which energy dissipation is primarily related to friction and impact phenomena. In this work a simple yet detailed analytical model is presented to study PID in two dimensions under transient vibrations. Normal as well as oblique impacts are considered. The effect of cavity size and acceleration amplitude on PID is studied and the results are supported by experiments. Fairly good agreement is found between the theory and the experiment.

An experimental study of a multi-particle impact damper

2009 ◽  
Vol 223 (9) ◽  
pp. 2029-2038 ◽  
Author(s):  
M Trigui ◽  
E Foltete ◽  
M S Abbes ◽  
T Fakhfakh ◽  
N Bouhaddi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Damping Capacity ◽  
Particle Impact ◽  
Structural Damping ◽  
Impact Damper ◽  
System Parameters ◽  
Specific Damping Capacity ◽  
Free Beam ◽  
Specific Impact ◽  
Impact Damping

In this article, an experimental study of a vertical particle impact damper under free excitation is investigated. Specific impact damping is determined for a primary structure (clamped-free beam) with an enclosure attached to its free end and containing a lead particle. The influence of some system parameters such as clearance and intensity of excitation are investigated. An analytical model based on the concept of an equivalent system with impacting mass is presented and used to compute the specific impact damping. Driven by the experimental observation, it has been shown that a high value of specific damping capacity was reached with a particle impact damper. The obtained results prove the efficiency of this process for achieving high structural damping.

PARTICLE IMPACT DAMPING

2000 ◽  
Vol 233 (1) ◽  
pp. 93-118 ◽  
Author(s):  
R.D. FRIEND ◽  
V.K. KINRA
Keyword(s):  
Particle Impact ◽  
Impact Damping
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