An effective vibration reduction concept for automotive applications based on granular-filled cavities

Duvigneau, Fabian; Koch, Sebastian; Woschke, Elmar; Gabbert, Ulrich

doi:10.1177/1077546316632932

Cited by 29 publications

(13 citation statements)

References 35 publications

(37 reference statements)

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“…Regarding the properties of particle damping, the literature states a number of qualitative findings. First, the damping behaviour of granular materials is highly nonlinear due to impacts and sliding between the particles (Duvigneau et al 2016;Fowler et al 2001, p. 1). In most publications, the nonlinearity is indicated as being dependent on the excitation amplitude.…”

Section: Particle Dampingmentioning

confidence: 99%

Optimizing lightweight structures with particle damping using frequency based substructuring

2020

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In many cases, the use of damping technologies is the only option to reduce undesired vibrations. Despite various damping techniques available on the market, the design of a precise damping behaviour still needs a lot of experimental testing and engineering experience. This is also the case for particle damping. However, for lightweight structures, technologies such as particle damping provide an opportunity to improve the structural dynamic behaviour without a large mass gain. With respect to this conflict, a hybrid numerical and experimental design approach is presented based on frequency based substructuring (FBS). With this technique, the use of experimental data for design optimization is possible and detailed modelling of the nonlinear particle damping system can be avoided. Moreover, based on the FBS, an approach to optimize damping and weight is proposed. All results are compared to experiments, and a subsequent discussion shows that the predictions for particle damping with FBS are accurate for defined operating points from which realistic designs can be derived. Generally, it is shown that methodical design approaches may strongly improve not only product development processes but also structural mechanical design.

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Section: Particle Dampingmentioning

confidence: 99%

Optimizing lightweight structures with particle damping using frequency based substructuring

2020

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“…The modeling of the encapsulation materials is not discussed here in detail, see [3]. Detailed numerical analyses have been conducted without and with different types of thermo-acoustic engine encapsulations; some results are presented in [3,4]. The results have also been experimentally evaluated with acoustic measurements in an engine test bench as seen in Fig.…”

Section: Pcyl(ω)mentioning

confidence: 99%

Noise Control of Vehicle Drive Systems

2017

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“…Also, they showed the high damping capability of lead compared to other metallic materials. Fabian et al showed particle impact damper's applications in automobile applications [11].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Analysis of Torque Properties of Rotary Elastomer Particle Damper considering the Effect of Gap and No Gap between Rotor and Body of the Damper

Rakhio

Ido

Iwamoto

et al. 2021

Shock and Vibration

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Particle dampers are devices used to control the vibration of mechanical systems. In this research, prototypes of rotary elastomer particle dampers are experimentally tested considering gap and no gap between shaft and cylinder. There is a gap between the rotor and cylinder in the gap model; particles can move from one chamber to another. There is no space for the particles to move from one chamber to another in the no-gap model. Elastomer particles are soft, and they have different behavior from hard (metallic) particles. Experiments on rotary elastomer particle dampers considering the gap between rotor and cylinder helped investigate the effects of the change in packing fraction, rotational speed, size of elastomers, and the gap between the rotor and the damper body. A numerical simulation approach based on the discrete element analysis method is used to perform a quantitative and qualitative analysis of the rotary elastomer particle damper. The simulation results are in great agreement with the experiment results. It is observed that packing fraction, rotational speed, size of elastomer particles, and the gap between rotor and cylinder play a vital role in producing higher damper torque.

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An effective vibration reduction concept for automotive applications based on granular-filled cavities

Cited by 29 publications

References 35 publications

Optimizing lightweight structures with particle damping using frequency based substructuring

Optimizing lightweight structures with particle damping using frequency based substructuring

Noise Control of Vehicle Drive Systems

Experimental and Numerical Analysis of Torque Properties of Rotary Elastomer Particle Damper considering the Effect of Gap and No Gap between Rotor and Body of the Damper

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