Brake squeal analysis of disc brake

Balaji, V.; Nagarajan, Lenin; Anand, P.; Rajesh, D.; Raja, V.K. Bupesh; Palanikumar, K.

doi:10.1016/j.matpr.2021.02.046

Cited by 39 publications

(5 citation statements)

References 4 publications

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“…The same friction essential for braking also contributes to instabilities that manifest as brake squealing. Balaji V et al 4 introduced a numerical approach for computing the intricate eigenvalues of a braking system. The dynamic stability of the brake system is influenced by operational factors such as friction coefficient, angular velocity, and braking pressure.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of brake squeal noise – Application to the disk brake systems

Bouazizi,

Soula,

Lazghab

2024

Noise & Vibration Worldwide

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Exploring Noise Reduction in Automotive Disc Brake Systems: Investigating the Impact of Viscoelastic Core Sandwich Plates. This study delves into the phenomenon of brake squeal noise generated by automotive disc brake systems. It focuses on analyzing the response of sandwich plates with viscoelastic cores, which are employed within brake systems to mitigate squeal noise arising from friction between brake pads and the brake disk. Through a series of finite element analyses conducted under varying operational conditions, including friction coefficient and angular velocity, the research aims to ascertain the complex eigenvalue of the disc brake system in order to identify unstable modes. The findings underscore that the incorporation of viscoelastic layers within preloaded, slender sandwich plates introduces nonlinear dynamic characteristics that contribute to the reduction of squeal noise within braking systems.

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Section: Introductionmentioning

confidence: 99%

Numerical analysis of brake squeal noise – Application to the disk brake systems

Bouazizi,

Soula,

Lazghab

2024

Noise & Vibration Worldwide

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“…Meng et al [5] reviewed a large number of peer-reviewed papers and concluded that COFs were critical to many areas, such as lubrication, wear, surface engineering, etc. In addition, COFs play a very important role in the theories or mechanisms of the generation of frictional vibrations and noise, e.g., in the stick-slip theory [6] and self-lock-slip theory [7]. A large number of studies have proved that the COFs have a significant effect on the generation of frictional vibrations and noise [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Braking Friction Coefficient Prediction Using PSO–GRU Algorithm Based on Braking Dynamometer Testing

Wang,

Yu,

Liu

et al. 2024

Lubricants

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The coefficients of friction (COFs) is one of the most important parameters used to evaluate the braking performance of a friction brake. Many indicators that affect the safety and comfort of automobiles are associated with brake COFs. The manufacturers of friction brakes and their components are required to spend huge amounts of time and money to carry out experimental tests to ensure the COFs of a newly developed braking system meet the required standards. In order to save time and costs for the development of new friction brake applications, the GRU (Gate Recurrent Unit) algorithm optimized by the improved PSO (particle swarm optimization) global optimization method is employed in this work to predict brake COFs based on existing experimental data obtained from friction braking dynamometer tests. Compared with the LSTM (Long Short-Term Memory) method, the GRU algorithm optimized by PSO avoids the accuracy reduction problem caused by gradient descent in the training process and hence reduces the prediction error and computational cost. The combined PSO–GRU algorithm increases the coefficient of determination (R2) of the prediction by 4.7%, reduces the MAE (mean absolute error) by 14.3%, and increases the prediction speed by 40.1% compared with the standalone GRU method. The prediction method based on machine learning proposed in this study can not only be applied to the prediction of automobile braking COFs but also for other frictional system problems, such as the prediction of braking noise and the friction of various bearing transmission components.

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“…Scholars initially studied the braking noise of friction brake discs. For example, Balaji [29] conducted a complex modal analysis of disc brakes using ABAQUS and found that reducing the friction coefficient and increasing the stiffness of the friction disc can reduce the vibration frequency of the friction noise. Chen [30] used complex mode analysis and transient dynamics in ABAQUS to study the vibration behavior between metal sliding blocks and found that the vibration frequency is very sensitive to the sliding speed and contact pressure.…”

Section: Introductionmentioning

confidence: 99%

Research on the Vibration Behavior of Ring–Block Friction Pair Made of Materials of Water-Lubricated Rubber Bearing under Special Operating Conditions

Zhang

Zhou

et al. 2023

Applied Sciences

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A water-lubricated rubber bearing (WLRB) is prone to generate frictional vibration noise under special operating conditions, which seriously affects the acoustic stealth performance of warships and threatens their navigation safety. Meanwhile, the main factor affecting the frictional vibration behavior of a WLRB is the materials of the friction pair. Therefore, this work selects a friction pair composed of a copper ring and a rubber block as the research object and studies the frictional vibration behavior of the ring–block friction pair under low-speed and starting conditions. The real friction coefficient curve is used to establish a transient dynamic finite element analysis model for the ring–block friction pair. The effects of the load, friction coefficient, and Young’s modulus on the frictional vibration behavior under special operating conditions are studied. The analysis’s results show that the frequency of the medium-high frequency friction-induced vibration disappears under low-speed operating conditions when the friction coefficient is below 0.1. During the startup process, even if the friction coefficient is very low, the medium-high frequency friction-induced vibration still exists. The research results provide ideas for future theoretical research and guidance suggestions for engineering practice.

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Brake squeal analysis of disc brake

Cited by 39 publications

References 4 publications

Numerical analysis of brake squeal noise – Application to the disk brake systems

Numerical analysis of brake squeal noise – Application to the disk brake systems

Braking Friction Coefficient Prediction Using PSO–GRU Algorithm Based on Braking Dynamometer Testing

Research on the Vibration Behavior of Ring–Block Friction Pair Made of Materials of Water-Lubricated Rubber Bearing under Special Operating Conditions

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