Role of contact plateaus on velocity-dependent friction of brake friction composite with steel fibres

Song, Wansu; Gweon, Jaehyun; Park, Jong Sung; Kim, Jin-Woo; Kim, Jeongkyu; Jang, Hae‐Dong

doi:10.1016/j.triboint.2022.107568

Cited by 8 publications

(2 citation statements)

References 18 publications

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“…Systems that utilize frictional force for this purpose involve problems that arise from the velocity-dependent friction attendant on the interoperation of steel brake discs and brake friction composites used on friction components. This is an important property from a tribological viewpoint because it is used to assess the braking system's propensity for generating noise [4]. The slope of the curve graph for the dependency between the friction coefficient and speed is an important value.…”

Section: Introductionmentioning

confidence: 99%

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Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

et al. 2023

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As part of ongoing research, a wheelchair dynamometer has been designed and built. This device is a complex test stand, enabling research on the operation of wheelchairs, taking into account a number of biomechanical factors in laboratory conditions. Based on a review of the available literature, the braking system was designed and constructed as a part of a dynamometer drive system. This has resulted in a design issue concerning the optimal selection of the electromechanical drive combined with a hydraulic system as the actuator of the brake. The purpose of the research discussed here is to determine the characteristics of the braking system. For this purpose, a series of tests were carried out using a wheelchair with an electric drive, which allowed the generation of a constant rotational speed in the range between 72 rpm and 222 rpm. Based on the test results, the hysteresis of the developed braking system and the characteristics of the braking power were determined.

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Section: Introductionmentioning

confidence: 99%

“…While the cause of the velocity-weakening friction in brake friction composites is a complicated issue, related experimental testing is limited [4]. This is due to the great diversity in the materials used in the manufacturing of commercial brake composites, resulting in the creation of complicated sliding surfaces [8].…”

Section: Introductionmentioning

confidence: 99%

Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

et al. 2023

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Exploring the tribological impact of micaceous additives in copper‐free automobile brake friction composites

Sathyamoorthy,

Raghunathan,

Rangappa

et al. 2024

Vinyl Additive Technology

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This study investigates the tribological impact of incorporating micaceous additives in copper‐free brake friction composites for automotive applications. Four brake pad formulations were created, each containing different amounts of muscovite and phlogopite, ranging from 0% to 10% by weight. A brake pad comparison was conducted by replacing mica with synthetic barites. The physical, thermal, mechanical, and chemical properties of the fabricated brake friction composite were examined. Tribological features were evaluated through inertia brake dynamometer testing following the JASO‐C‐406 schedule. Scanning electron microscope (SEM) analysis delved into contact plateau formations and back transfer patches on the brake pad's surfaces. Notably, phlogopite‐based pads exhibited enhanced thermal stability and efficient heat dissipation, contributing to sustained tribological performance. Overall, the comprehensive evaluation using the multiple objective optimization by ratio analysis (MOORA) method positioned phlogopite‐based brake pads as the optimal choice for optimized braking performances.Highlights Exploration of micaceous additives as an ingredient in brake friction composite. Phlogopite‐based brake pads showed better fade and recovery performance. Phlogopite‐based brake pads exhibited low pad wear and rotor wear. MOORA optimization positioned phlogopite‐based brake pads as the optimal choice.

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A study on the differences in tribological behavior of friction pairs under decoupling and coupling of frictional interface and system structure

Liu

Xiang

2023

Tribology International

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Role of contact plateaus on velocity-dependent friction of brake friction composite with steel fibres

Cited by 8 publications

References 18 publications

Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

Considerations for the Design of a Wheelchair Dynamometer Concerning a Dedicated Braking System

Exploring the tribological impact of micaceous additives in copper‐free automobile brake friction composites

A study on the differences in tribological behavior of friction pairs under decoupling and coupling of frictional interface and system structure

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