&lt;title&gt;Particle beam damper&lt;/title&gt;

Simonian, Stephan S.

doi:10.1117/12.208884

Cited by 39 publications

(29 citation statements)

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“…They may be insensitive to temperature and environmental conditions, do not degrade in time and they are at least as effective as other damping techniques [3], [4]. Instead of using only one impact object, dozens or even millions of particles are used.…”

Section: Introductionmentioning

confidence: 99%

“…Particle dampers show several advantages when compared to other existing passive damping techniques. They may be insensitive to temperature and environmental conditions, do not degrade in time and they are at least as effective as other damping techniques [3], [4]. Despite the efficiency of particle dampers that was demonstrated experimentally, they have been used only in a few different engineering applications so far, mostly designed for a very specific system.…”

Section: Introductionmentioning

confidence: 99%

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An experimental model for the analysis of energy dissipation in particle dampers

Meyer

Seifried

2019

Proc Appl Math and Mech

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Particle damping is a very promising passive damping technique, however, it is still rarely used in technical applications due to its complex dimensioning. An experimental model is developed in order to investigate the energy dissipation of the dampers regardless of the underlying structure. The testbed consists of a particle box with a free-free boundary condition which is excited by an acceleration controlled shaker. The loss factor and the energy dissipation are obtained via the complex power. The particle damper can be analyzed over a wide frequency and acceleration range. Different particle numbers are used showing the high potential of particle dampers for different excitation ranges.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An experimental model for the analysis of energy dissipation in particle dampers

Meyer

Seifried

2019

Proc Appl Math and Mech

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“…These engineering applications mainly focus on the aerospace field, machinery field, and lifeline engineering, e.g., the protection for antenna structures [10,15] and printed circuit board [156] under shock-loading conditions, reducing the wind-induced vibration of lamp pole, chimney, and some flexible structures, [157] the suppression on the vibration of tennis rackets, [158] electro-mechanical relays, [33] aircraft, [48] engine turbine system of space shuttle, [2,14] fan and compressor blisks, [159] and metal-cutting machine tools. [13] …”

Section: Application Of Particle Damping Technologymentioning

confidence: 99%

“…Additionally, properly designed particle dampers can be effective over a broad frequency range. [2,[7][8][9][10] Particle dampers are also suitable for employment in long-term harsh environments, such as high temperature, severe cold, and oil contamination, where other types of damping devices are no longer suitable or efficient, thus making the use of particle dampers a low-maintenance damping methodology. In addition, compared to the traditional passive damping technology, particle damping technology can be embedded or mounted without causing significant modifications in the mass or stiffness of the primary structure.…”

mentioning

confidence: 99%

“…[11,12] This vibration attenuation technology has been widely used in the aerospace and machinery fields, producing many kinds of industrial applications, for instance, the vibration suppression of cutting tools, [13] engine turbine system in the space shuttle, [2,14] and antenna structures. [10,15] Furthermore, particle damping technology also shows its superiority in the vibration and noise control in lifeline engineering, such as wind turbines, [16] power transmission towers, [17,18] and subsea jumpers. [19,20] It is worth mentioning that several papers have been conducted to study its application in reducing the vibrations of surgical and dental instruments for mechanical material ablation.…”

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confidence: 99%

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Particle impact dampers: Past, present, and future

Wang

Masri

Lü

2017

Struct Control Health Monit

185

105

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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...

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Einsatz additiv gefertigter Partikeldämpfer – eine Übersicht

Ehlers

Lachmayer

2020

Konstruktion Für Die Additive Fertigung 2019

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<title>Particle beam damper</title>

Cited by 39 publications

References 1 publication

An experimental model for the analysis of energy dissipation in particle dampers

An experimental model for the analysis of energy dissipation in particle dampers

Particle impact dampers: Past, present, and future

Einsatz additiv gefertigter Partikeldämpfer – eine Übersicht

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