Braking Moment Comparison and Analysis for Various Brake Designs Using Results From Sample and Full Scale Friction Material Tests

Skorupka, Zbigniew

doi:10.5604/12314005.1136185

Cited by 4 publications

(3 citation statements)

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“…These tests give knowledge of general material behaviour in defined work conditions. It is also possible to perform direct comparison between different tests due to optimal repeatability (2). The tests are made on preselected materials -friction pair: brake pads lining and material for brake disc.…”

Section: Test Of the Friction Materials In Landing Gear Laboratorymentioning

confidence: 99%

“…These tests give knowledge of performance and behaviour in order to improve full scale brake design. M ot 3T tests are required to evaluate brake design and to prove its efficiency and reliability (2). Test stand allow the researcher to change test parameters in order to evaluate behaviour of the brake.…”

Section: Fig 4 Model (Friction Material) Test -Il 68 Test Stand [2]mentioning

confidence: 99%

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Tests and Selection Methodology for Brake Linings Friction Material

Grygorcewicz

Tywoniuk

2014

Journal of KONES. Powertrain and Transport

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This article presents selected issues related to the selection methodology of the brake linings during the research process. It is a very important issue due to effect on the vehicle safety. Safety concerns are applicable to both road/track vehicles and aircraft. Scientific institutions and research centers make continuous efforts in order to improve brake lining materials and full-scale brakes. Analytical prediction of the friction material properties and behavior is not accurate enough due to complexity of the physical phenomena. Analysis of the friction materials is difficult due to scarce of data given by the manufacturers. Every friction material needs to be tested in order to prove its properties. First stage of the selection is the tests made in laboratory using both model and full-scale techniques. Because of the laboratory tests, following parameters are obtained: weight and geometrical brake wear, braking torque, friction coefficient and brake temperature. All of these factors must be taken into account for linings selection and design a prototype of the brake. Selection of the friction material can be performed in consideration of various requirements of the brake system users and law defined factors.

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Section: Test Of the Friction Materials In Landing Gear Laboratorymentioning

confidence: 99%

Section: Fig 4 Model (Friction Material) Test -Il 68 Test Stand [2]mentioning

confidence: 99%

Tests and Selection Methodology for Brake Linings Friction Material

Grygorcewicz

Tywoniuk

2014

Journal of KONES. Powertrain and Transport

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“…It is used by many industries, including the automotive industry. In the automotive industry, the most important application of friction is in braking systems [ 1 , 2 ].…”

Section: Introductionmentioning

confidence: 99%

Laboratory Tests on the Possibility of Using Flax Fibers as a Plant-Origin Reinforcement Component in Composite Friction Materials for Vehicle Braking Systems

Borawski,

Szpica,

Mieczkowski

2024

Materials

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Braking systems are extremely important in any vehicle. They convert the kinetic energy of motion into thermal energy that is dissipated into the atmosphere. Different vehicle groups have different nominal and maximum speeds and masses, so the amount of thermal energy that needs to be absorbed by the friction pads and then dissipated can vary significantly. Conventional friction materials are composite materials capable of withstanding high temperatures (in the order of 500–600 °C) and high mechanical loads resulting from braking intensity and vehicle weight. In small vehicles traveling at low speeds, where both the amount of thermal energy and its density are limited, the use of slightly weaker friction materials with better ecological properties can be considered. This work proposes a prototype composite friction material using flax fibers as reinforcement instead of the commonly used aramid. A number of samples were prepared and subjected to laboratory tests. The samples were prepared using components of plant origin, specifically flax fibers. This component acted as reinforcement in the composite friction material, replacing aramid commonly used for this purpose. The main tribological characteristics were determined, such as the values of the coefficients of friction and the coefficients of abrasive wear rate. For this purpose, an authorial method using ball-cratering contact was used. The results were analyzed using statistical methods. It was found that the composite material using flax fibers does not differ significantly in its tribological properties from conventional solutions; so, it can be assumed that it can be used in the vehicle’s braking system.

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