Impact of an irregular friction formulation on dynamics of a minimal model for brake squeal

Stender, Merten; Tiedemann, Merten; Hoffmann, Norbert; Oberst, Sebastian

doi:10.1016/j.ymssp.2018.01.032

Cited by 30 publications

(7 citation statements)

References 23 publications

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“…Difficulties in studying the emergence of FIV [9,10,11,12] are related to the nonlinear interactions that take place at 2 rough interfaces, involving nonlinear contact stiffness [13] and non-smooth friction laws [14]. This gives rise to a wide spectrum of possible dynamical states, which range from regular/irregular motion [15,16] to localized/propagating interfacial stick-slip vibrations [17,18]. The emergence of these dynamical states is still poorly understood.…”

Section: Introductionmentioning

confidence: 99%

Nucleation and propagation of excitation fronts in self-excited systems

Shiroky

Papangelo

Hoffmann

et al. 2020

Physica D: Nonlinear Phenomena

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Frictional interfaces exhibits a very rich dynamical behavior due to frictional interactions. This work focuses on the transition between spatially localized and propagating stick-slip motion. To overcome the difficulties related to the non-smoothness of the friction law we have studied two models: (model I) a friction-excited chain of weakly coupled oscillators excited by a frictional moving belt and (model II) a chain of Van der Pol oscillators. The two models show very similar dynamical features.Both exhibit discrete breathers (i.e. spatially localized periodic solutions) solutions for low coupling and show propagation along the chain of high amplitude limit cycles for stronger elastic coupling between the unit cells. In both models the transition from discrete breathers to propagating limit cycles happens through a nucleation process and, above a certain critical coupling, the velocity of propagation scales linearly with the elastic coupling coefficient. We suggest that dynamical features similar to what was demonstrated in this work are expected for models that are different quantitatively but preserve the same single-unit topology.

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Section: Introductionmentioning

confidence: 99%

Nucleation and propagation of excitation fronts in self-excited systems

Shiroky

Papangelo

Hoffmann

et al. 2020

Physica D: Nonlinear Phenomena

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“…Kang (2017) found that the rotation of the asymmetric disc can significantly change the nonlinear static noise characteristics and linear stability. Stender et al (2018) analyzed the effect of highfrequency irregular interface dynamics on the nonlinear dynamical response of a self-excited structure for brake squeal. Denimal et al (2019) analyzed the sensitivity of squeal propensity to the various contact interfaces between pads, piston, bracket, and caliper.…”

Section: Introductionmentioning

confidence: 99%

Impact analysis of contact symmetrical caliper structure on brake squeal

Pan

Zhang

Liu

et al. 2020

Journal of Vibration and Control

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The brake squeal of automobiles has become one of the most annoying issues for passengers. Hence, it is essential to suppress the noise from the design stage of the braking system. In this article, the method for reducing squeal noise is explored based on the finite element model of the brake system. Studies on this model show that the structural deficiency of the brake caliper may cause the instability of the braking system and then cause squeal noise. Thus, the brake caliper is optimized to achieve a symmetrical contact pressure distribution on the inner and outer sides of the disc surface. The effectiveness of this method is analyzed by ANSYS/workbench software and verified in bench tests and road tests. The results show that the symmetrical caliper structure can make the brake pressure distribution more reasonable and the brake system more stable. Finally, it has reduced the noise incidence from 19.27% to 3.63%, which provides an effective method of reducing brake squeal noise.

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“…Bonnay et al 18 have treated the disk thickness variation and have shown the influence of this disturbance on brake squeal. The impact of an irregular friction coefficient on brake squeal is investigated by Stender et al 19 Hochlenert and Hagedorn 20 developed an analytical model with four DOFs for the disk brake system that could analyze the stability with the variation of the parameters. We can find in the literature other parametric studies that study the brake squeal.…”

Section: Introductionmentioning

confidence: 99%

Investigation of friction-induced vibration in a disk brake model, including mode-coupling and gyroscopic mechanisms

Ghorbel

Zghal

Abdennadher

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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The brake squeal reduction has been extensively investigated in many academic and industrial researchers. Friction-induced vibrations can be considered as a dynamic instability problem. Generally, automotive engineers and researchers working in the domain of disk brake noise treat instabilities due to the force of friction as a friction-induced vibration. In the case of squeal noise, mode coupling may cause instability of the system. The aim of this article is to propose a minimal two degree of freedom disk brake model in order to investigate the effects of different parameters on mode-coupling instability. This model takes into account self-excited vibration, gyroscopic effect, friction-induced damping, and brake pad geometry. Thus, a stability analysis of equilibrium by calculating complex eigenvalues is presented to investigate the influence of the main parameters on the stability zone such as the opening angle of the brake pad and preload. For the validation of the stability analysis, squeal index and time domain response are used. The results obtained show the importance of optimizing the physical and geometrical parameters of the brake and that some of these parameters have greater effects compared to the others to reduce noise.

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Impact of an irregular friction formulation on dynamics of a minimal model for brake squeal

Cited by 30 publications

References 23 publications

Nucleation and propagation of excitation fronts in self-excited systems

Nucleation and propagation of excitation fronts in self-excited systems

Impact analysis of contact symmetrical caliper structure on brake squeal

Investigation of friction-induced vibration in a disk brake model, including mode-coupling and gyroscopic mechanisms

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