Influence of Distributed Stiffness in Contact Surface on Disk Brake Squeal

Oura, Yasunori; Kurita, Yutaka; Matsumura, Yuichi; Nishizawa, Yukio

doi:10.4271/2008-01-2584

Cited by 17 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the experimental results were not in good agreement with the results because, among other reasons, the pin-disc model cannot simulate the restoring moment in the rotational direction at the contact surface, but only the reaction force in the translational direction. For this reason, Oura et al [91], in a very recent work, developed a surface-contact model where the influence of the frictional contact surface (modelled as a distributed spring) on squealing has been examined. In this way, a better agreement with the experimental results has been obtained.…”

Section: Lumped-parameter Modelsmentioning

confidence: 99%

Brake comfort – a review

Cantoni

Cesarini

Mastinu

et al. 2009

Vehicle System Dynamics

View full text Add to dashboard Cite

Several state of the art papers and even books on brake vibration and/or noise have been presented in the literature. Many of them have analytically and sharply accounted for the impressive amount of research undertaken on this topic. This state of the art review focuses on the still-open questions that appear crucial from the perspective of a leading brake manufacturer. The paper deals with the phenomena of brake vibration and/or noise, the experimental and theoretical methods for studying such phenomena, and the actions that are identified to be necessary to definitely solve the addressed problem. Key topics are the modelling of friction, the modelling of the dynamics of the brake as a non-linear system subjected to deterministic or random (parametric) excitation, the proper modelling of the contact between the disc and the pad, and the experimental validation of the mathematical models.

show abstract

Section: Lumped-parameter Modelsmentioning

confidence: 99%

Brake comfort – a review

Cantoni

Cesarini

Mastinu

et al. 2009

Vehicle System Dynamics

View full text Add to dashboard Cite

show abstract

“…The nature of the friction behavior at the brake and disk parts' contact surface was assumed to be linear with respect to the brake action between them. Previous studies have focused on using stochastic techniques to overcome the non-linear behavior observed in friction modelling [22,23], however, such non-linear effects were not considered in this study. Here, T xi and R xi are the translation and rotation motions of the variable xi, respectively.…”

Section: Stability Analysis Of Assembled Brake System Modelmentioning

confidence: 99%

Contribution Analysis of Assembled Brake System to Reduce Squealing

Kwon

Kim

2022

Applied Sciences

View full text Add to dashboard Cite

Brake noise is a problem that is still being studied owing to continuous issues in the vehicle industry, and many countermeasures have been suggested using experimental and simulation approaches. The assembled brake system comprises several subparts, and a contribution analysis is an efficient solution for selecting the subpart with the most influence on squealing. In this study, a finite-element model of the assembled brake system was verified with modal test results for each part. Then, a forced response analysis of the assembled brake system model was conducted to obtain the spectral response vector of the subparts under white-noise excitation. A contribution analysis was formulated by calculating the similarity between the total and partial response vectors of each part and deriving the contribution index of all subparts of interest. The brake pad was selected as the target of design modification, and the feasibility was validated using an experimental chassis dynamometer test.

show abstract

“…In the previous studies, it was found that brake squeal frequencies and instabilities of the system are different with different contact pressure distributions on disc-pad interfaces. 30,31 Yasunori Oura and Yutaka Kurita et al 32 proposed that contact stiffness other than contact pressure is the cause of brake squeal. Hetzler and Willner found that unstable regions varied with different contact stiffness distributions.…”

Section: Introductionmentioning

confidence: 99%

A study of the influence of heterogeneous friction coefficient and heterogeneous contact stiffness on the generation of squeal

Zhang

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

Friction and contact characteristics play important roles in brake squeal generation, while their heterogeneous characteristics are often neglected. In this paper, a flexible pin-on-disc system model is established. Squeal bench test is carried out to verify the correctness of the model. Random heterogeneous friction coefficients and contact stiffnesses are built and assigned to the model. Evaluation indexes of friction and contact heterogeneities are established. The unstable region and the squeal uncertainty are analyzed. Then, the influence of the heterogeneous friction and contact characteristics on generation of brake squeal is explored based on statistical method and uncertainty concept in the unstable region and the mix region respectively. The results show that when only friction coefficient is heterogeneous, the radius of the center position of friction coefficient is the key influencing factor of brake squeal; when only contact stiffness is heterogeneous, the radius of the center position of contact stiffness is the key influencing factor of brake squeal; when friction coefficient and contact stiffness are both heterogeneous, the mean value of the product of friction coefficient and contact stiffness and the radius of the center position of friction coefficient play critical roles on friction squeal. Besides, squeal tends to occur when the mean value of the product of heterogeneous friction coefficient and contact stiffness and the radius of the center position of friction coefficient are large.

show abstract

Influence of Distributed Stiffness in Contact Surface on Disk Brake Squeal

Cited by 17 publications

References 2 publications

Brake comfort – a review

Brake comfort – a review

Contribution Analysis of Assembled Brake System to Reduce Squealing

A study of the influence of heterogeneous friction coefficient and heterogeneous contact stiffness on the generation of squeal

Contact Info

Product

Resources

About