Excellent Brake NVH Comfort by Simulation - Use of Optimization Methods to Reduce Squeal Noise

Carvajal, Sergio; Wallner, Daniel; Helfrich, Reinhard; Klein, Michael

doi:10.4271/2016-01-1779

Cited by 5 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, several research efforts have been published regarding the discovery of applicable methods in an attempt to understand, predict, and prevent squeal occurrence through experimental, analytical, and numerical methods [6]. Moreover, the use of complex eigenvalue analysis for brake squeal has been widely accepted in industry [7], [8]. Mode frequency based research has been used to predict brake squeal occurrence since the early 2000's.…”

Section: A Brake Noisementioning

confidence: 99%

Design Optimization of Disc Brake for Reducing Squeal Noise by Frequency Sensitivity Analysis

Cha¹,

Jung²,

Hong³

et al. 2018

IJET

View full text Add to dashboard Cite

As widely noted by researched in last decades, an automotive brake system works by transforming kinetic energy of vehicle into thermal energy, and dissipating the energy through heat conduction. The typical concerns in this kind of system are the noise problems in high frequency which can be figured the vibration characteristics out though modal analysis of the system. As noted in recent research, the mentioned problem is mainly related with the specific modes of components where potentially can be superposed. The separation of these modes should be handled as a crucial design consideration at the initial stage of development. The rotor is a significant contributor of noise and vibration, hence the modal separation is to be considered in designing detail shapes of the component, since the shape of the object generally affects the mode frequencies. In this study, frequency sensitivity analysis through finite element method by design of experimental process has conducted to find the dominant shape factors among the multiple designable figures of the rotor body. Several shape factors are selected as design variables for the implementation of the modal separation process. The contribution of the shape factor to the mode frequency transition has calculated to achieve the optimal design of given component.

show abstract

Section: A Brake Noisementioning

confidence: 99%

Design Optimization of Disc Brake for Reducing Squeal Noise by Frequency Sensitivity Analysis

Cha¹,

Jung²,

Hong³

et al. 2018

IJET

View full text Add to dashboard Cite

show abstract

Avoiding stick-slip limit cycle vibration in electric vehicle brake system via brake force distribution

Han,

Chen,

et al. 2024

Journal of Vibration and Control

View full text Add to dashboard Cite

Brake creep groan, a friction-induced nonlinear vibration in the brake system, has significantly contributed to the reduction of ride comfort. In order to mitigate brake creep groan, a brake force distribution strategy based on the stick-slip curve is proposed and examined. The critical boundary of the stick-slip limit cycle is determined and established as the constraint condition. Focusing on avoiding stick-slip limit cycle vibration, an adaptive particle swarm optimization method is employed to study the distribution of brake force between regenerative brake and friction brake, with energy recovery efficiency serving as the objective function. Four distinct operational conditions—NEDC, UDDS, WLTP, and FTP—are simulated. The results demonstrate that under these conditions, vibrations associated with the stick-slip limit cycle can be reduced by up to 23.596%, 15.368%, 15.342%, and 17.557%, respectively. Considering the peak power and peak torque of the drive motor, three regions can be identified: the region where stick-slip limit cycle vibration cannot be avoided, the region where avoidance efficiency increases with the rise in the drive motor’s peak torque and peak power, and the region where avoidance efficiency remains constant despite increases in the drive motor’s peak torque and peak power.

show abstract

Application Limits of the Complex Eigenvalue Analysis for Low-Frequency Vibrations of Disk Brake Systems

Huemer-Kals

Pürscher

Fischer

2017

SAE Technical Paper Series

View full text Add to dashboard Cite

Excellent Brake NVH Comfort by Simulation - Use of Optimization Methods to Reduce Squeal Noise

Cited by 5 publications

References 3 publications

Design Optimization of Disc Brake for Reducing Squeal Noise by Frequency Sensitivity Analysis

Design Optimization of Disc Brake for Reducing Squeal Noise by Frequency Sensitivity Analysis

Avoiding stick-slip limit cycle vibration in electric vehicle brake system via brake force distribution

Application Limits of the Complex Eigenvalue Analysis for Low-Frequency Vibrations of Disk Brake Systems

Contact Info

Product

Resources

About