A Novel Method for Changing the Dynamics of Slender Elements Using Sponge Particles Structures

Żurawski, Mateusz; Chiliński, Bogumił; Zalewski, Robert

doi:10.3390/ma13214874

Cited by 4 publications

(4 citation statements)

References 26 publications

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“…Existing devices [ 13 , 14 , 17 , 18 , 21 ] reflect the effective ability of the mechanical damping. Despite many advantages, the functionality of the aforementioned structures is subject to significant limitations.…”

Section: Prototype Of the Symmetrical Granular Dampermentioning

confidence: 99%

“…Scientists and researchers aim to propose novel designs of devices that could be an alternative to the commonly used controlling absorbers. Several papers [ 11 , 12 , 13 , 14 ] present an approach in which mechanical vibrations were damped by means of an innovative adaptive impact damper. The main factor reducing vibrations is the possibility of mass movement inside a container of variable volume.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Studies on Adaptive-Passive Symmetrical Granular Damper Operation

Żurawski

Zalewski

2022

Materials

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This paper presents experimental studies on a controllable granular damper, whose dissipative properties are provided by the friction phenomenon occuring between loose granular material. In addition, in order to adjust to the current trends in vibration suppression, we built a semi-active device, controlled by a single parameter—underpressure. Such granular structures subjected to underpressure are called Vacuum-Packed Particles. The first section presents the state of the art. A brief description of the most often used intelligent and smart materials for the manufacture of dampers is presented. The main advantages of the proposed device are a simple structure, low construction cost, symmetrical principle of operation, and the ability to change the characteristics of the damper by quickly and suddenly changing the negative pressure inside the granular core. The second section provides a detailed description of the construction and operation principles of the original symmetrical granular damper. A description of its application in the laboratory research test stand is also provided. The third section presents the results of the experimental studies including the recorded damping characteristics of the investigated damper. The effectiveness of the ethylene–propylene–diene grains’ application is presented. The two parameters of underpressure and frequency of excitation were considered during the empirical tests. The influence of the system parameters on its global dissipative behavior is discussed in detail. The damper operation characteristics are close to linear, which is positive information from the point of view of the potential adaptive-passive control process. Brief conclusions and the prospective application of vacuum-packed particle dampers are presented in the final section.

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Section: Prototype Of the Symmetrical Granular Dampermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Studies on Adaptive-Passive Symmetrical Granular Damper Operation

Żurawski

Zalewski

2022

Materials

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“…It is possible to find magnetorheological devices [13], viscous dampers, tension belts [14] as well as cutting or slitting energy absorbers [15] there. Continuous research on different solutions and the complexity of the problem give rise to looking for better approaches based on smart structures such as sponge particles structures or vacuum packed particles [16,17].…”

Section: Introductionmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Rodak

Żurawski

Gmitrzuk

et al. 2021

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Blast mitigation continues to be a popular field of research when military vehicles are concerned. The main problem is coping with the vehicle global motion consequences following an explosion. The paper presents a potential application of the linear vacuum packed particle (VPP) damper as a supplementation for a viscous shock absorber in a traditional blast mitigation seat design. The paper also presents field test results for the underbelly blast explosion, comparing them to the laboratory tests carried out on the impact bench. To collect accelerations, the anthropomorphic test device, i.e. the Hybrid III dummy, was used. A set of numerical simulations of the modified blast mitigation seat with the additional VPP linear damper were revealed. The VPP damper was modeled according to the Johnson-Cook model of viscoplasticity. The Hertzian contact theory was adopted to model the contact between the vehicle and the ground. The reduction of the dynamic response index (DRI) in the case of the VPP damper application was also proved.

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“…Concepts of tuneable elements utilising VPPs are described in some works and show efficient control strategies [11]. Regarding shaping and control of the dynamics with smart materials, the authors of [17] studied on a new type of smart structure, which is a so-called sponge particle structure (SPS). The authors proposed a method for controlling the dynamics of a slender beam filled with SPS by shaping its frequency structure by redistribution of the investigated system mass.…”

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confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Mackojc

Chiliński

Zalewski

2022

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This paper concerns the problem of empirical investigation and mathematical modelling of a novel controllable damper using Vacuum Packed Particles. Vacuum Packed Particles tend to be placed among the group of so-called 'smart structures'. The macroscopic mechanical features of such structures can be controlled by the partial vacuum parameter. The authors consider an application of Bouc-Wen model in order to represent the dynamic behaviour of the investigated device. The verification of the model response with experimental data is discussed. The Bouc-Wen model parameters identification is described.

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A Novel Method for Changing the Dynamics of Slender Elements Using Sponge Particles Structures

Cited by 4 publications

References 26 publications

Experimental Studies on Adaptive-Passive Symmetrical Granular Damper Operation

Experimental Studies on Adaptive-Passive Symmetrical Granular Damper Operation

Bulletin of the Polish Academy of Sciences: Technical Sciences

Bulletin of the Polish Academy of Sciences: Technical Sciences

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