Simulation and Characterization of Used Brake Friction Materials and Rotors

Jacko, M. G.; Ducharme, R T

doi:10.4271/730191

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…Inertia dynamometers are dynos that incorporate a full-or reduced-sized brake. Compared to other dynamometers, these dynos can reproduce the braking system operating conditions in a reasonably reliable way [106]. Based on the literature, there are two types of inertia dynamometers: full-scale and reduced-scale.…”

Section: Inertia Dynamometermentioning

confidence: 99%

Input Parameters for Airborne Brake Wear Emission Simulations: A Comprehensive Review

2021

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Non-exhaust emissions, generated by the wear of brake systems, tires, roads, clutches, and road resuspension, are responsible for a large part of airborne pollutants in urban areas. Brake wear accounts for 55% of non-exhaust emissions and significantly contributes to urban health diseases related to air pollution. A major part of the studies reported in the scientific literature are focused on experimental methods to sample and characterize brake wear particles in a reliable, representative, and repeatable way. In this framework, simulation is an important tool, which makes it possible to give interpretations of the experimental results, formulate new testing approaches, and predict the emission produced by brakes. The present comprehensive literature review aims to introduce the state of the art of the research on the different aspects of airborne wear debris resulting from brake systems which can be used as inputs in future simulation models. In this review, previous studies focusing on airborne emissions produced by brake systems are investigated in three main categories: the subsystem level, system level, and environmental level. As well as all the information provided in the literature, the simulation methodologies are also investigated at all levels. It can be concluded from the present review study that various factors, such as the uncertainty and repeatability of the brake wear experiments, distinguish the results of the subsystem and system levels. This gap should be taken into account in the development of future experimental and simulation methods for the investigation of airborne brake wear emissions.

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Section: Inertia Dynamometermentioning

confidence: 99%

Input Parameters for Airborne Brake Wear Emission Simulations: A Comprehensive Review

2021

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“…Initially, there is major material transfer from the brake lining pads on the cast iron rotor surface. However, with time, as the temperature rises, there is plastic deformation of the cast iron surface layer, which may destroy its virgin pearlitic cast iron microstructure [22].…”

Section: Introductionmentioning

confidence: 99%

Investigation of High-Frequency Squeal in a Disc Brake System Using a Friction Layer-Based Coupling Stiffness

Paliwal

Mahajan

Don

et al. 2005

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper presents a two degree of freedom model for disk brake systems that makes use of the concept of a friction layer-based coupling stiffness. This model is then used to investigate noise and vibration, especially high-frequency squeal. It is shown that for automotive brake systems, the friction layer plays a significant role in the performance characteristics. Hence, the coupling stiffness between the brake pad and the rotor is modelled as a combination of the elastic stiffness of the friction layer superimposed on the coupling modal stiffness of the brake-pad combination. The elastic properties of the friction layer are obtained from nano-indentor tests and the contact area is approximated using light microscopy and scanning electron microscopy analysis. The coupling modal stiffnesses are obtained from impact tests and finite element studies. Preliminary results from the model are consistent with the actual high squeal data collected from the field. The main objective of this work is to introduce a new way of modelling the coupling stiffness based on the properties of the friction layer, which has not been extensively studied till now.

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Physical and chemical changes of organic disc pads in service

Jacko

1978

Wear

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Simulation and Characterization of Used Brake Friction Materials and Rotors

Cited by 9 publications

References 2 publications

Input Parameters for Airborne Brake Wear Emission Simulations: A Comprehensive Review

Input Parameters for Airborne Brake Wear Emission Simulations: A Comprehensive Review

Investigation of High-Frequency Squeal in a Disc Brake System Using a Friction Layer-Based Coupling Stiffness

Physical and chemical changes of organic disc pads in service

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