An Investigative Overview of Automotive Disc Brake Noise

Dunlap, Knight; Riehle, Michael A.; Longhouse, Richard E.

doi:10.4271/1999-01-0142

Cited by 83 publications

(47 citation statements)

References 2 publications

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“…Similar evaluations have been carried out in reference (Liu et al, 2007). Also, Dunlap et al (1999) reported that increased rotor stiffness is directionally correct for reduction in squeal propensity. …”

Section: Influence Of Rotor Young's Modulussupporting

confidence: 59%

Effects of material properties on generation of brake squeal noise using finite element method

Belhocine¹,

Ghazaly

2015

Lat. Am. j. solids struct.

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This research paper is concerned with the disc brake squeal problem for passenger cars. The aim of the present research is developing a finite element model of the disc brake assembly in order to improve understanding of the influence of Young's modulus on squeal generation. A detailed finite element model of the whole disc brake assembly that integrates the wheel hub and steering knuckle is eveloped and validated using experimental modal analysis. Stability analysis of the disc brake assembly is accomplished to find unstable frequencies. A parametric study is carried to look into the effect of changing Young's modulus of each brake components on squeal generation. The results of simulation indicated that Young's modulus of disc brake components play a substantial role in generating the squeal noise.

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Section: Influence Of Rotor Young's Modulussupporting

confidence: 59%

Effects of material properties on generation of brake squeal noise using finite element method

Belhocine¹,

Ghazaly

2015

Lat. Am. j. solids struct.

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“…Increasing Young's modulus of the disc may be reducing the brake squeal generation. Similar evaluations have been carried out by Liu et al 12 Also, Dunlap 24 reported that increased rotor stiffness was directionally correct for reduction in squeal propensity.…”

Section: Influence Of Rotor Young's Modulussupporting

confidence: 62%

Effects of Young's Modulus on Disc Brake Squeal using Finite Element Analysis

Belhocine¹,

Ghazaly²

2016

IJAV

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This paper is concerned with the disc brake squeal problem of passenger cars. The objective of this study is to develop a finite element model of the disc brake assembly in order to improve the understanding of the influence of Young's modulus on squeal generation. A detailed finite element model of the whole disc brake assembly that integrates the wheel hub and steering knuckle is developed and validated by using experimental modal analysis. Stability analysis of the disc brake assembly is conducted to find unstable frequencies. A parametric study is carried out to look into the effect of changing Young's modulus of each brake's components on squeal generation. The simulation results indicate that Young's modulus of the disc brake components plays an important role in generating the squeal noise.

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“…During the literature survey, this parameter was found to contribute to a certain extent to the squeal (Dai et al, 2008;Dunlap et al, 1999). Hence an angle of 45 was provided on both sides of the friction material and the size of chamfer was varied between 5 mm and 9mm.…”

Section: Variation Of the Chamfer Sizementioning

confidence: 99%

A combined approach of complex eigenvalue analysis and design of experiments (DOE) to study disc brake squeal

Ghazaly¹,

Mathivanan²,

Srinivasan³

2010

Int. J. Eng. Sci. Tech

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This paper proposes an approach to investigate the influencing factors of the brake pad on the disc brake squeal by integrating finite element simulations with statistical regression techniques. Complex eigenvalue analysis (CEA) has been widely used to predict unstable frequencies in brake systems models. The finite element model is correlated with experimental modal test. The 'input-output' relationship between the brake squeal and the brake pad geometry is constructed for possible prediction of the squeal using various geometrical configurations of the disc brake. Influences of the various factors namely; Young's modulus of back plate, back plate thickness, chamfer, distance between two slots, slot width and angle of slot are investigated using design of experiments (DOE) technique. A mathematical prediction model has been developed based on the most influencing factors and the validation simulation experiments proved its adequacy. The predicted results show that brake squeal propensity can be reduced by increasing Young's modulus of the back plate and modifying the shape of friction material by adding chamfer on both sides of friction material and by introducing slot configurations. The combined approach of modeling brake squeal using CEA and DOE is found to be statistically adequate through verification trials. This combined approach will be useful in the design stage of the disc brake.

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An Investigative Overview of Automotive Disc Brake Noise

Cited by 83 publications

References 2 publications

Effects of material properties on generation of brake squeal noise using finite element method

Effects of material properties on generation of brake squeal noise using finite element method

Effects of Young's Modulus on Disc Brake Squeal using Finite Element Analysis

A combined approach of complex eigenvalue analysis and design of experiments (DOE) to study disc brake squeal

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