Brake Squeal Analysis by Finite Elements

Nack, Wayne V.

doi:10.4271/1999-01-1736

Cited by 53 publications

(7 citation statements)

References 11 publications

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“…Stability analysis is a classical method for studying the brake squeal phenomenon [9,[11][12][13][14]. An analytical finite element model with nonlinear contents such as contact and frictional elements is considered.…”

Section: Introductionmentioning

confidence: 99%

A new treatment for predicting the self-excited vibrations of nonlinear systems with frictional interfaces: The Constrained Harmonic Balance Method, with application to disc brake squeal

Coudeyras

Sinou

Nacivet

2009

Journal of Sound and Vibration

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Section: Introductionmentioning

confidence: 99%

A new treatment for predicting the self-excited vibrations of nonlinear systems with frictional interfaces: The Constrained Harmonic Balance Method, with application to disc brake squeal

Coudeyras

Sinou

Nacivet

2009

Journal of Sound and Vibration

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“…The rst proponent of h circumferential coordinate of the cylindrical this idea was Spurr [11]. The contact interface may be coordinate system modelled by a series of contact springs [12]. The resultm i kinetic friction coe cient at the ith contact ant sti ness matrix is usually asymmetric.…”

Section: Notationmentioning

confidence: 99%

Vibration and squeal of a disc brake: Modelling and experimental results

Ouyang

Cao

Mottershead

et al. 2003

Proceedings of the Institution of Mechanical Engineers, Part D:

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This paper presents a method for analysing the unstable vibration of a car disc brake, and numerical results are compared with squeal frequencies from an experimental test. The stationary components of the disc brake are modelled using many thousands of solid and special finite elements, and the contacts between the stationary components and between the pads and the disc are considered. The disc is modelled as a thin plate and its modes are obtained analytically. These two parts (stationary and rotating) of the disc brake are brought together with the contact conditions at the disc/pads interface in such a way that the friction-induced vibration of the disc brake is treated as a moving load problem. Predicted unstable frequencies are seen to be close to experimental squeal frequencies. The numerical simulation indicates that the stability can be improved by shifting the centre of the piston line pressure towards the trailing side of the pad.

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“…Brake squeal is the high frequency noise above 1 kHz during brake engagement, and it is one of the major concern in automotive industry. In previous studies, 1–3 several mechanisms have been summarized as the cause of brake squeal. One major mechanism is known as mode-coupling instability in which friction-couple or frictional follower force acting on the disc produces the nonconservative work resulting in mode-merging of the two vibration modes with closely spaced frequencies.…”

Section: Introductionmentioning

confidence: 99%

Squeal propensity due to rigid modes of brake pad

Kang

2013

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper examines the squeal propensity associated with the rigid motion of a brake pad. For the description of the rigid motion, the brake pad is analytically modeled as a composite annular sector plate with both the back plate and friction material rigid. The friction material is subject to friction contact with a rotating disc. The vibration modes of the rigid pad consist of the six rigid modes including three rotation and three translation modes coupled with contact stiffness. The analytical formulation for the dynamic motion of the composite rigid pad is presented. From the numerical calculation, the rigid pad modes are shown to be coupled with one another and thus generate the modal instability in both finite element full model and simplified pad model. It is suggested that the squeal propensity of the rigid pad modes can be estimated by using the simplified pad model and controlled by the certain design modification such as the contact area.

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Brake Squeal Analysis by Finite Elements

Cited by 53 publications

References 11 publications

A new treatment for predicting the self-excited vibrations of nonlinear systems with frictional interfaces: The Constrained Harmonic Balance Method, with application to disc brake squeal

A new treatment for predicting the self-excited vibrations of nonlinear systems with frictional interfaces: The Constrained Harmonic Balance Method, with application to disc brake squeal

Vibration and squeal of a disc brake: Modelling and experimental results

Squeal propensity due to rigid modes of brake pad

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