Analysis of Disc Brake Noise Using a Two-Degree-of-Freedom Model

Shin, Kihong; Brennan, M.J.; Oh, Jae Eung; Harris, C.J.

doi:10.1006/jsvi.2001.4127

Cited by 141 publications

(88 citation statements)

References 17 publications

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“…Structural damping has been shown to be of primary importance to the stability of mode couplings [140,141,142,143]. Effects of damping have been considered on minimal models in many studies (see e.g.…”

Section: Hammeringmentioning

confidence: 99%

“…Effects of damping have been considered on minimal models in many studies (see e.g. [144,140,141,145]) but mostly ignored in finite element models due to complexity [123]. Fritz et al [123] developed a finite element model of a brake system and showed that damping does not always stabilizes the brake system instead it could also make the system unstable depending upon the modes involved.…”

Section: Hammeringmentioning

confidence: 99%

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Overview of disc brakes and related phenomena - a review

Rashid

2014

IJVNV

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Disc brakes have evolved over time to be a reliable method of decelerating and stopping a vehicle. There have been different designs of disc brake systems for different applications. This review gives a detailed description of different geometries of the components and the materials used in a disc brake system. In spite of all the improvements, there are still many operational issues related to disc brakes that need to be understood in a greater detail and resolved. There has been a lot of research going on about these issues and at the same time different methods are being proposed to eliminate or reduce them. There has also been an intensive fundamental research going on about the evolution of tribological interface of disc-pad system. One major purpose of the present paper is to give a comprehensive overview of all such developments.

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Section: Hammeringmentioning

confidence: 99%

Section: Hammeringmentioning

confidence: 99%

Overview of disc brakes and related phenomena - a review

Rashid

2014

IJVNV

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“…A brake system features several kinds of damping, such as structural damping, friction-induced damping and the damping effect of insulators. The effects of damping were first investigated on analytical and experimental analyses [15][16][17][18][19][20][21]. Nevertheless, taking damping into account in a whole brake FE model is far more complicated.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the relationship between damping and mode-coupling patterns in case of brake squeal

Fritz

Sinou

Duffal

et al. 2007

Journal of Sound and Vibration

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International audienceBrake squeal is a friction induced instability phenomenon that has to be addressed during the development process. The mechanism is considered a mode coupling phenomenon also referred to as coalescence. The system eigenvalues have been computed using a technique based on the finite element method. The coalescence patterns were then determined in relation to the friction coefficient. The effects of damping on the coalescence patterns have been investigated. If the two modes involved in the coalescence are equally damped, a "lowering effect" that tends to stabilize the system is observed. If the two modes are not equally damped, both "lowering" and "smoothing" effects occur. If the "smoothing effect" prevails, added damping may act in an unintuitive way by destabilizing the system. To further study this point, stability areas have been plotted and a metric is proposed to find the most stable configuration in terms of damping distribution. In the squeal frequency range, coalescence patterns often involve more than two modes. In this case, the effect of damping is far more complicated since several modes are coupled both in terms of friction and damping

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“…Nevertheless, a lot of work remains to be done on the effects of damping. Indeed, a brake system features several kinds of damping, such as structural On the one hand, the effects of damping have already been investigated on lumped models [7], [8], [9], [10]. On the other hand, taking damping into account in a whole brake FE model is far more complicated.…”

Section: Introductionmentioning

confidence: 99%

Effects of damping on brake squeal coalescence patterns – application on a finite element model

Fritz

Sinou

Duffal

et al. 2007

Mechanics Research Communications

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Brake squeal is referred to, in most publications, as a flutter instability trigged by a mode coupling phenomenon. A lot of clues tends to prove that damping would be a key parameter in brake squeal modelling. This study aims at investigating the effects of damping on coalescence patterns, that is to say on the way the modes couple. A finite element model of the whole brake corner has been used to compute the brake modal behaviour. Then a complex eigenvalue analysis has been undertaken to assess the brake stability as a function of the friction coefficient. Different kinds of damping spreading over the modes have been studied. Two main effects have been noticed: a shifting effect and a smoothing effect. The first one always stabilize the brake, whereas this is not the case of the second one. The combination of the two effects may make the brake more unstable depending on the spreading of the additionnal damping.

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Analysis of Disc Brake Noise Using a Two-Degree-of-Freedom Model

Cited by 141 publications

References 17 publications

Overview of disc brakes and related phenomena - a review

Overview of disc brakes and related phenomena - a review

Investigation of the relationship between damping and mode-coupling patterns in case of brake squeal

Effects of damping on brake squeal coalescence patterns – application on a finite element model

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