Modeling the fine particle impact damper

Du, Yanchen

doi:10.1016/j.ijmecsci.2010.04.004

Cited by 34 publications

(13 citation statements)

References 36 publications

(72 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This type of variant mainly includes the buffered impact damper, [61] the fine particle impact damper, [62] the polymeric particle damper, [63,64] the elastomer particle damper, [65] the soft hollow particle damper, [66] the metal swarf damper, [67] and the metallic wires particle damper. [68][69][70] Li et al [61] covered the inner wall of the particle damper with thin rubber material, which formed the buffered impact damper.…”

Section: The Materials Improved Type Of Particle Dampersmentioning

confidence: 99%

“…The material improved type improves the materials of particles and cavities by employing novel materials or using traditional materials skillfully, in order to reduce noise levels, impact forces, and increase plastic deformation, thus increasing the energy absorption. This type of variant mainly includes the buffered impact damper, the fine particle impact damper, the polymeric particle damper, the elastomer particle damper, the soft hollow particle damper, the metal swarf damper, and the metallic wires particle damper . Li et al covered the inner wall of the particle damper with thin rubber material, which formed the buffered impact damper.…”

Section: Basic Concept and Development Of Particle Dampingmentioning

confidence: 99%

“…According to the experimental study, it was shown that rubber can alter the stiffness of the inner wall, leading to considerable improvements on the working performance of the dampers over a wide range of frequencies, especially decreasing the impact force and noise levels. Du first proposed the concept of the fine particle impact damper in which a small quantity of fine particles are enrolled as damping agent, coupled with some steel spheres enrolled as impact partners. When the main structure is vibrating, the impact of steel spheres brings about plastic deformation of fine particles that are usually surrounded and covered around steel spheres, resulting in consuming the vibration energy of the main structure permanently.…”

Section: Basic Concept and Development Of Particle Dampingmentioning

confidence: 99%

See 2 more Smart Citations

Particle impact dampers: Past, present, and future

Wang

Masri

Lü

2017

Struct Control Health Monit

175

105

View full text Add to dashboard Cite

Particle damping, an effective passive vibration control technology, is developing dramatically at the present stage, especially in the aerospace and machinery fields. The aim of this paper is to provide an overview of particle damping technology, beginning with its basic concept, developmental history, and research status all over the world. Furthermore, various interpretations of the underlying damping mechanism are introduced and discussed in detail. The theoretical analysis and numerical simulation, together with their pros and cons are systematically expounded, in which a discrete element method of simulating a multi-degree-of-freedom structure with a particle damper system is illustrated. Moreover, on the basis of previous studies, a simplified method to analyze the complicated nonlinear particle damping is proposed, in which all particles are modeled as a single mass, thereby simplifying its use by practicing engineers. In order to broaden the applicability of particle dampers, it is necessary to implement the coupled algorithm of finite element method and discrete element method. In addition, the characteristics of experimental studies on particle damping are also summarized. Finally, the application of particle damping technology in the aerospace field, machinery field, lifeline engineering, and civil engineering is reviewed at length. As a new trend in structural vibration control, the application of particle damping in civil engineering is just at the beginning. The advantages and potential applications are demonstrated, whereas the difficulties and deficiencies in the present studies are also discussed. The paper concludes by suggesting future developments involving semi-active approaches that can enhance the effectiveness of particle dampers when used in conjunction with structures subjected to nonstationary excitation, such as earthquakes and similar nonstationary random excitations. KEYWORDS discrete element method, impact damping, nonlinear energy sink, particle damping, passive control, semiactive control | INTRODUCTIONParticle damping technology is a form of an auxiliary-mass type vibration damper, wherein multiple metal, tungsten carbide, ceramic or other types of small particles are placed within the cavities of the vibrating structure, or the enclosures attached to the vibrating structure in order to mitigate the response of the primary structure. [1,2] As the primary structure vibrates, kinetic energy is significantly absorbed through the combined effects of particle-to-particle and particle-to-wall inelastic collisions and frictional losses, producing considerable damping to the primary structure. [3][4][5][6] Particle damping technology has been widely Received: 23 February 2017 Revised: used due to its conceptual simplicity, moderate cost, good durability, and temperature insensitivity. Provided that the operating temperature is below the particles' metal melting point, it could maintain normal operation. Furthermore, material such as tungsten powder can withstand the high temp...

show abstract

Section: The Materials Improved Type Of Particle Dampersmentioning

confidence: 99%

Section: Basic Concept and Development Of Particle Dampingmentioning

confidence: 99%

Section: Basic Concept and Development Of Particle Dampingmentioning

confidence: 99%

See 1 more Smart Citation

Particle impact dampers: Past, present, and future

Wang

Masri

Lü

2017

Struct Control Health Monit

175

105

View full text Add to dashboard Cite

show abstract

“…Among the devices, the single impact dampers are most widely studied, and many theoretical models were developed based on the single impact dampers. 3,6,17 The studies found that the current devices typically have two symmetric impacts per cycle to achieve good damping performance. 1,2 However, the efficient damping effect can only be achieved near the resonance point, and the location far away from the resonance point has poor damping or even amplifies the vibration.…”

Section: Introductionmentioning

confidence: 99%

Investigation of chattering behavior of impact damper

2017

Advances in Mechanical Engineering

Self Cite

View full text Add to dashboard Cite

Impact dampers are able to reduce vibration effectively through impacts and thus have wide applications in mechanical control. This work investigated the chattering behavior of a two-degree-of-freedom impact damper. Chattering is a phenomenon of continuous collisions within a short time. A theoretical model was developed to obtain the completing position and time of chattering. The fourth-order Runge-Kutta method was adopted to numerically solve the model. The results of bifurcation diagram and temporal map were obtained with different parameters, confirming the validity of the model. Furthermore, the model showed that viscosity is an important parameter separating the completing chattering from the non-completing chattering. The results demonstrated that the model can help solve chattering of impact damper by developing better understanding of the underlying mechanisms.

show abstract

“…The few researchers to investigate the physics of the particle impact damper, Steven E Olson [6] presented an analytical particle damping model to understand the physics of the particle impact damper. Yanchen Du et al [7] set a numerical model to understand complex physics involved in the fine particle impact damper, also Kun S Marhadi and Kinra V K [8] measured the physics of particle impact damping by using cantilever beam with particle filled enclosure attached to its free end arrangement. Other than experimental few researchers studied the application of particle damping for vibration control.…”

Section: Introductionmentioning

confidence: 99%

Surface Quality Enrichment Using Fine Particle Impact Damper in Boring Operations

Devaraj¹

2014

IJRET

View full text Add to dashboard Cite

Boring operations are challenging owing to limited process performance due to inherent tool overhang and resulting vibrations. The tool vibrations can be suppressed with insertion of suitable damping methodology. The fine particle impact damping offers a better damping method. Due to its conceptual simplicity, potential effectiveness over a wide frequency range, temperature and degradation insensitivity and cost-effectiveness, particle damping is an attractive passive damping. The fine particles embedded within small hole in a vibrating structure to dissipate the exciting energy thereby damping the vibrations. The present work, investigates the improvement of surface quality of boring operation using fine particle impact damper. Substantial improvement of surface quality of the internally machined surfaces has been noticed in the experiments.

show abstract

Modeling the fine particle impact damper

Cited by 34 publications

References 36 publications

Particle impact dampers: Past, present, and future

Particle impact dampers: Past, present, and future

Investigation of chattering behavior of impact damper

Surface Quality Enrichment Using Fine Particle Impact Damper in Boring Operations

Contact Info

Product

Resources

About