Academic literature on the topic 'Frictional braking'

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Journal articles on the topic "Frictional braking"

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Su, Zhu Yu. "A Study on Forming Mechanism of Braking Torque on the Friction Surface." Advanced Materials Research 850-851 (December 2013): 200–203. http://dx.doi.org/10.4028/www.scientific.net/amr.850-851.200.

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The process of vehicle brake, the influence of the temperature on brake friction directly determines the braking force and the frictional coefficient, and has a huge impact on the braking torque. Based on the characteristics of frictional material, combining with modeling and simulation tests, researching the basic theory of braking technology, contribute to the stability and enhancement of braking performance.
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Huang, Shan, Jiusheng Bao, Shirong Ge, Yan Yin, and Tonggang Liu. "Design of a frictional–electromagnetic compound disk brake for automotives." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 234, no. 4 (2019): 1113–22. http://dx.doi.org/10.1177/0954407019864210.

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According to the disadvantages of serious wear and heat fade of friction pad in frequent and high speed braking of friction brakes, and the insufficient power of electromagnetic brakes in low speed braking, a novel frictional-electromagnetic compound disk brake which combines both of these two brake principles is proposed for automotives in this paper. The excitation coils are designed based on the Zhang Yicheng theory model, and the compound brake prototype is manufactured based on the self-made magnetic brake pads and existing automotive brakes. The magnetic field and dynamic of the brake ar
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Yin, Yan, Jiusheng Bao, Jinge Liu, Chaoxun Guo, Tonggang Liu, and Yangyang Ji. "Braking performance of a novel frictional-magnetic compound disc brake for automobiles." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, no. 10 (2018): 2443–54. http://dx.doi.org/10.1177/0954407018791056.

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Disc brakes have been applied in various automobiles widely and their braking performance has vitally important effects on the safe operation of automobiles. Although numerous researches have been conducted to find out the influential law and mechanism of working condition parameters like braking pressure, initial braking speed, and interface temperature on braking performance of disc brakes, the influence of magnetic field is seldom taken into consideration. In this paper, based on the novel automotive frictional-magnetic compound disc brake, the influential law of magnetic field on braking p
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Hwang, Jung Ho, Heung Seob Kim, Young Choi, Byeong Soo Kim, and Ki Weon Kang. "The Thermal Analysis of Brake Disc with 3-D Coupled Analysis." Key Engineering Materials 297-300 (November 2005): 305–10. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.305.

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As the automobile industry develops, the demand for automobiles that provide more comfortable ride and safety is also increasing. In the conventional braking analysis, frictional heat generation is only related to wheel speed, friction material, and the interface pressure. However, under the dynamic braking conditions, the frictional heat causes the thermo-elastic distortion that leads to more concentrated distribution of contact pressure and hence more and more non-uniform temperature. This paper describes the thermo-elastic instability arising from friction heat generation in braking and pro
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Yevtushenko, Aleksander A., Piotr Grzes, and Adam Adamowicz. "The Temperature Mode of the Carbon-Carbon Multi-Disc Brake in the View of the Interrelations of Its Operating Characteristics." Materials 13, no. 8 (2020): 1878. http://dx.doi.org/10.3390/ma13081878.

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In this paper, a methodology for conducting a computer simulation of the frictional heating process of a multi-disc braking system is proposed. The single braking of a system of three identical discs made of carbon–carbon (C/C) carbon frictional composite material (CFCM) is considered. In order to determine the operational characteristics of the brake, a heat dynamics of friction (HDF) system of equations is formulated, which takes into account the contact pressure rise time, thermal sensitivity of the C/C material, the change in the coefficient of friction during braking, the parameters of th
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Solomin, E. V., E. A. Sirotkin, and I. M. Kirpichnikova. "Efficiency Analysis of the Friction Material for the Wind Turbine Braking System." Solid State Phenomena 284 (October 2018): 1321–26. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.1321.

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The paper presents a research in identification of optimal conditions for friction material operation in the wind turbine braking system. The component composition of friction material includes brass (binder material); steel (fibers); iron oxide (fillers); cuprum, graphite and metal sulphides (friction modifier); aluminum (abrasive). The dependence of its frictional characteristics on the operating temperature is presented. We also presented the simulation of several modes of the wind turbine braking system. The most optimal operation mode for the friction material is the wind turbine rotor br
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Zhang, Rui-Jun. "Structure design and coordinated control of electromagnetic and frictional braking system based on a hub motor." Science Progress 104, no. 1 (2021): 003685042199848. http://dx.doi.org/10.1177/0036850421998483.

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A new type of built-in composite electromagnetic and frictional braking structural scheme and its corresponding coordinated control strategy were proposed to enhance the braking effects for the electric vehicle. Fuzzy control theory was applied to design the coordinated control strategy for the electromagnetic and frictional braking system. In comparison to lower braking strength and moderate braking strength, the slip ratio of high braking strength was maintained at near 0.15. It effectively avoided the wheel getting locked and provided relatively large braking torque in the process of brakin
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Wang, Dagang, Ruixin Wang, Tong Heng, Guozheng Xie, and Dekun Zhang. "Tribo-Brake Characteristics between Brake Disc and Brake Shoe during Emergency Braking of Deep Coal Mine Hoist with the High Speed and Heavy Load." Energies 13, no. 19 (2020): 5094. http://dx.doi.org/10.3390/en13195094.

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The friction wear and thermal fatigue cracking of the brake shoe and friction-induced self-excited vibration (frictional flutter) of the disc brake can easily occur during emergency braking of a deep coal mine hoist with at high speed and with a heavy load. Therefore, tribo-brake characteristics between the brake disc and brake shoe during emergency braking of a deep coal mine hoist are investigated in the present study. Scaled parameters of the disc brake of a deep coal mine hoist are determined by employing the similarity principle. Friction tests between friction disc and brake shoe are car
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Ivanov, P. Yu, A. M. Khudonogov, E. Yu Dulskiy, A. A. Korsun, and S. V. Treskin. "INVESTIGATION OF TEMPERATURE OF BRAKE PADS WITH DIFFERENT EXTENT OF WEAR IN FRICTIONAL BRAKING." Herald of the Ural State University of Railway Transport, no. 3 (2020): 27–34. http://dx.doi.org/10.20291/2079-0392-2020-3-27-34.

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The issue of railway rolling stock brake pad heating is examined under frictional braking within a freight car with unilateral push, equipped with castiron brake pads. Foreign and domestic experience of studies of heat cycles caused by friction has been examined, mechanism of heat release in the contact zone between a pad and wheel during braking with consideration of a heat flow distribution coefficient is described, mathematical modeling choice as a way to refine temperature measurements in the process of experimental studies is grounded, the results of estimated determination of the thermal
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Pomoni, Maria, Christina Plati, and Andreas Loizos. "How Can Sustainable Materials in Road Construction Contribute to Vehicles’ Braking?" Vehicles 2, no. 1 (2020): 55–74. http://dx.doi.org/10.3390/vehicles2010004.

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Vehicles’ braking is a key factor towards safer driving. In particular, tyre–pavement friction is connected with both industry and infrastructure requirements in terms of tyre characteristics and frictional properties of pavement surfaces respectively that both contribute to safe braking. For this reason, tyre–pavement friction is considered as one of the most pressing emergencies in roadway assets in order to reduce skidding related accidents. At the same time, sustainability aspects have been raised in modern infrastructure engineering. Hence, an issue is introduced on how sustainable materi
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Dissertations / Theses on the topic "Frictional braking"

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Eggleston, David. "An investigation into frictional surface interactions and their effect on brake judder." Thesis, Sheffield Hallam University, 2000. http://shura.shu.ac.uk/19601/.

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The chemical nature of the Transfer Film (T.F.) or Third-Body Layer (T.B.L.) formed at the friction interface of an automotive friction brake during off-brake motoring has been studied using Energy Dispersive X-ray (E.D.X.) analysis and Scanning Electron Microscopy (S.E.M.). Although these third-body layers are deposited on both mating surfaces of the friction couple, special attention has been paid to those formed on the disc brake rotor surface. Concurrently, detailed investigations have been undertaken examining the temperature-dependent, physico-chemical interactions of friction material c
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Kalakos, Dimitrios, and Bernhard Westerhof. "Heavy Vehicle Braking using Friction Estimation for Controller Optimization." Thesis, KTH, Fordonsdynamik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-223318.

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In this thesis project, brake performance of heavy vehicles is improved by the development of new wheel-based functions for a longitudinal slip control braking system using novel Fast Acting Braking Valves (FABVs). To achieve this goal, Volvo Trucks' vehicle dynamics model has been extended to incorporate the FABV system. After validating the updated model with experimental data, a slip-slope based recursive least squares friction estimation algorithm has been implemented. Using information about the tire-road friction coefifcient, the sliding mode slip controller has been made adaptive to dif
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Loizou, Andreas, Hong Sheng Qi, and Andrew J. Day. "Analysis of heat partition ratio in vehicle braking processes." Institution of Mechanical Engineers, 2009. http://hdl.handle.net/10454/2834.

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Yes<br>An examination of the heat partition ratio between the friction surfaces of a disc braking system is presented using finite element analysis (FEA). This includes a 2D static analysis of two semi-infinite bodies in contact with and without an interface layer which represents the interface tribo-layer (ITL). An analytical approach with a finite difference solution was used for cross-comparison with the static FE models. Results from the static model have provided the boundary conditions for a 2D dynamic model, where one rectangular block slides on another (fixed) rectangular block.
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Hammerström, Lars. "Mechanisms and Phenomena in Braking and Gripping." Doctoral thesis, Uppsala University, Department of Engineering Sciences, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6974.

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<p>Applications relying on a high static friction include various types of fixtures, couplings, bolted joints, torsion joints, etc. The common characteristic of these applications is that they rely on the friction force to maintain the relative position of two mating surfaces. Also applications relying on high dynamic friction are common, the main example being brakes, where a low friction could be devastating.</p><p>The plateau model for the friction of brakes has been refined. By using advanced electron microscopy, it has been shown that during braking a partly amorphous friction film, compr
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Flitcroft, S. M. "The friction and wear characteristics of a sintered metal motorcycle friction braking material, under wet and dry conditions." Thesis, Brunel University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278371.

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Sarip, S. Bin. "Lightweight friction brakes for a road vehicle with regenerative braking : design analysis and experimental investigation of the potential for mass reduction of friction brakes on a passenger car with regenerative braking." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5486.

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One of the benefits of electric vehicles (EVs) and hybrid vehicles (HVs) is their potential to recuperate braking energy. Regenerative braking (RB) will minimize duty levels on the brakes, giving advantages including extended brake rotor and friction material life and, more significantly, reduced brake mass and minimised brake pad wear. In this thesis, a mathematical analysis (MATLAB) has been used to analyse the accessibility of regenerative braking energy during a single-stop braking event. The results have indicated that a friction brake could be downsized while maintaining the same functio
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Waddad, Yassine. "Multiscale thermomechanical strategies for rough contact modeling : application to braking systems." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10049/document.

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Les phénomènes de contact (rugosité, frottement, usure, etc.) sont importants dans le fonctionnement des freins à friction. Ils peuvent influencer leurs performances en modifiant l'état de surface et des matériaux. Afin de cerner ce problème, les industriels se basent sur des méthodes de type essai/erreur qui sont coûteuses et peu efficaces face aux exigences actuelles.L'objectif de cette thèse est de proposer une alternative consistant à modéliser numériquement les systèmes, tels qu'un frein à friction, avec des hypothèses réalistes au niveau du contact contrairement aux approches classiques
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Mann, Ruddy. "Experiments and thermomechanical modelling of braking application & friction material characterization with loading history effect." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10016.

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L’expansion actuelle du secteur de la haute vitesse ferroviaire vers des vitesses d’exploitation et chargements plus importants conduit à la nécessité d’améliorer les systèmes de freinage garantissant leurs performances malgré l’énergie supplémentaire à dissiper.La méthodologie actuelle de développement de ces matériaux étant principalement basée sur un retour d’expérience essai/erreur, l’objectif vise donc à développer une méthodologie alternative incorporant des modèles théoriques et numériques pour la conception de matériaux de friction. Cependant, les difficultés s’avèrent multiples avec d
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Zaini. "Control strategies for blended braking in road vehicles : a study of control strategies for blended friction and regenerative braking in road vehicles based on maximising energy recovery while always meeting the driver demand." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/7341.

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In HEV and EV, higher fuel economy is achieved by operating the ICE and electric motor in the most efficient region and by using regenerative braking. Such a braking system converts, transfers, stores and reuses kinetic energy which would otherwise be dissipated as heat through friction brakes to the environment. This research investigates the control of braking for a mixed-mode braking system in a these vehicles based on the proportion of braking energy that can be stored. Achieving mixed-mode braking requires the ‘blending’ of the two systems (regenerative and friction), and in brake blendin
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Neis, Patric Daniel. "Projeto e construção de um tribômetro com controle independente da temperatura do disco." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/75736.

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A presente tese descreve as etapas de desenvolvimento de um equipamento (tribômetro) e metodologia de ensaio para caracterização do efeito isolado da temperatura sobre o atrito medido em materiais de fricção utilizados em freios veiculares. O projeto deste equipamento foi baseado nas funcionalidades e limitações encontradas nas principais máquinas e procedimentos de ensaio para freios automotivos. São apresentados e discutidos detalhes do projeto mecânico e de automação do tribômetro, bem como são levantadas suas incertezas de medição instrumentais e precisão. Além disso, é proposta uma nova m
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Books on the topic "Frictional braking"

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Yager, Thomas J. Evaluation of two transport aircraft and several ground test vehicle friction measurements obtained for various runway surface types and conditions: a summary of test results from Joint FAA/NASA Runway Friction Program. Langley Research Center, 1990.

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Flitcroft, S. M. The friction and wear characteristics of a sintered metal motorcycle friction braking material, under wet and dry conditions. Brunel University, 1990.

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Garshin, Anatoliy, Aleksey Nilov, and Viktor Kulik. Friction fiber-reinforced ceramic-matrix composite materials. INFRA-M Academic Publishing LLC., 2023. http://dx.doi.org/10.12737/1989212.

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The monograph summarizes the results of the analysis of the main features of fiber-reinforced composite materials with a ceramic matrix and fiber fillers used for their reinforcement. The main technological methods of obtaining ceramic-matrix composites based on solid, gas and liquid-phase processes are considered. The results of the assessment of the current state and prospects for the development of friction elements in braking systems of high-energy transport equipment are presented. The main directions of increasing the corrosion, heat and wear resistance of composite materials with a cera
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Graham, Darin Philip Weston. Implementation of aircraft tire, braking, friction and runway models in real-time ground simulation. 1987.

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Book chapters on the topic "Frictional braking"

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Yevtushenko, Aleksander, and Piotr Grzes. "FEM-Modeling of Frictional Heating During Braking." In Encyclopedia of Thermal Stresses. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-2739-7_731.

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Yevtushenko, Aleksander, and Michal Kuciej. "One-Dimensional Analytical Models of Frictional Heating During Braking." In Encyclopedia of Thermal Stresses. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-2739-7_622.

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Karyotakis, Ektor, Derong Yang, Mats Jonasson, and Jonas Sjöberg. "Optimal Braking and Steering Control Under Split Friction on Curved Roads." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70392-8_85.

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AbstractThis paper aims to maximize deceleration on split friction roads by combining steering and individual wheel braking. For this, a previously tested optimization problem is adapted to curved roads. The optimal brake force and steering allocation is investigated as a function of the split friction asymmetry. Results show that low friction is more detrimental to maximum braking on the inner side of the curve due to load transfer. Finally, the paper showcases a control strategy for braking on split friction, which enhances safety and manoeuvrability in critical split friction scenarios.
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Iatropoulos, Jannes, Tim Ahrenhold, Leon Salzwedel, and Roman Henze. "Road Friction Adaptive Lateral Control of Automated Vehicles with Differential Braking." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70392-8_16.

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AbstractDifferential braking offers a promising approach to ensure lateral control of automated vehicles in the event of steering actuator failure. Braking interventions induce longitudinal forces on the wheel, which influence the vehicle’s yaw motion and thus enable lateral control along a given trajectory. Within the scope of this paper, a road friction adaptive system for lateral vehicle control by differential braking on a dry, wet, snow- and ice-covered road is derived simulatively. The investigated friction coefficient adaption is implemented by a variable path planning and calculated on
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Deylaghian, Samira, Mats Jonasson, and Petri T. Piiroinen. "A Comparative Study of Discomfort Using Electrical and Friction Braking at Low Speed Driving." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70392-8_101.

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AbstractIn this study, we conduct an analysis of the longitudinal dynamics of a vehicle model in an incline, with a specific focus on its behavior, at low speeds, when starting and stopping. The model is minimal, yet an effective representation of a vehicle that includes the effects of springs and dampers as well as friction and electric braking models, which allows for easy analysis into their interplay at low speed. One important feature that this early study shows is how the acceleration and jerk is affected by static and dynamic friction coefficients in different driving situations. Our st
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Salzwedel, Leon, Christian Frohn, Cedric Heise, Jannes Iatropoulos, and Roman Henze. "Increasing Performance of Differential Braking as Steering Backup Using Combined Slip Effects." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70392-8_80.

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AbstractRedundancies provide essential fail-operationality and are commonly utilized in design of Steer-by-Wire systems. Operationality of steering rack actuators can therefore be increased using differential braking as additional redundancy level. Research in this field has shown boundaries for lateral control to be mitigated compared to conventional steering systems. This paper focuses on performance increases by driveline torque and stability control, both yielding effects of combined longitudinal and lateral tire slip during cornering.Coping with the tradeoff between under- and oversteer w
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Tavares, J. M. "Dynamics of Braking Vehicles: From Coulomb Friction to Anti-Lock Braking Systems." In Offbeat Physics. CRC Press, 2022. http://dx.doi.org/10.1201/9781003187103-1.

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Fork, Thomas, Francesco Camozzi, Xiao-Yu Fu, and Francesco Borrelli. "Predictive Braking on a Nonplanar Road." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70392-8_90.

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AbstractWe present an approach for predictive braking of a four-wheeled vehicle on a nonplanar road. Our main contribution is a methodology to consider friction and road contact safety on general smooth road geometry. We use this to develop an active safety system to preemptively reduce vehicle speed for upcoming road geometry, such as off-camber turns. Our system may be used for human-driven or autonomous vehicles and we demonstrate it with a simulated ADAS scenario. We show that loss of control due to driver error on nonplanar roads can be mitigated by our approach.
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Lajewski, Thorsten, J. Rauh, and S. Müller. "Measuring a reference friction potential by anti-lock braking tests." In Proceedings. Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-13255-2_30.

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Broadbent, Nicholas Drake, Trey Weber, Daiki Mori, and J. Christian Gerdes. "Neural Network Tire Force Modeling for Automated Drifting." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70392-8_54.

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AbstractAutomated drifting presents a challenge problem for vehicle control, requiring models and control algorithms that can precisely handle nonlinear, coupled tire forces at the friction limits. We present a neural network architecture for predicting front tire lateral force as a drop-in replacement for physics-based approaches. With a full-scale automated vehicle purpose-built for the drifting application, we deploy these models in a nonlinear model predictive controller tuned for tracking a reference drifting trajectory, for direct comparisons of model performance. The neural network tire
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Conference papers on the topic "Frictional braking"

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Houhua, Jing, Lin Qinggan, and Liu Mingqi. "Friction Modeling and Control Compensation for Electromechanical Braking Systems." In 2024 8th CAA International Conference on Vehicular Control and Intelligence (CVCI). IEEE, 2024. https://doi.org/10.1109/cvci63518.2024.10830205.

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Bandiera, Marco, Andrea Bonfanti, Andrea Mauri, Alessandro Mancini, Massimiliano Bestetti, and Federico Bertasi. "Corrosion Phenomena in Braking Systems." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-14550.

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Abstract In this work selected corrosion phenomena occurring in disc brake systems are reviewed. For the first time, a galvanic series, summarizing the electrochemical performance of several brake system components, is presented and case studies are discussed as well. The case studies focus on corrosion issues which are related with the three major components of a car disc brake system, namely the: a) Aluminum caliper; b) brake pads and associated friction materials; and c) cast iron disc. It is shown that: a) the parameters for the anodization of Aluminum calipers should be carefully tuned on
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Yevtushenko, A. A., M. Kuciej, and K. Topczewska. "EFFECT OF THE TEMPORAL PROFILE OF THE FRICTION POWER ON THERMAL STRESSES DURING BRAKING." In BALTTRIB. Aleksandras Stulginskis University, 2017. http://dx.doi.org/10.15544/balttrib.2017.23.

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In this paper influence of the temporal profile of frictional heat flow density on the distributions of temperature and thermal stresses in a friction element during single braking was investigated. For this purpose a one-dimensional boundary-value heat conduction problem for a half-space body (which simulates a brake rotor) heated on the outer surface by the heat flux with different intensities was formulated and solved by means of Duhamel’s theorem. Solutions were obtained for ten temporal profiles of specific friction power, which are proportional to the intensity of frictional heat flow. B
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Khafaji, Salwan Obaid Waheed, Noah D. Manring, and Mohammed Al-Mudhafar. "Optimal Design of a Conventional and Magnetorheological Fluid Brakes Using Sensitivity Analysis and Taguchi Method." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86775.

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Drum brakes have dominated the braking industry for many years due to their low cost and adequate operating performance. In this paper, the authors present the first example of studying the sensitivity analysis of a magnetorheological fluid (MRF) and a conventional frictional brake by using first order Tayler series expansion. Nondimensional analyses are carried out to generalize the analyses for every brake configuration. This paper seeks to step away from the complexity of the numerical models for these brakes. Taylor series expansion is used to examine the effects of perturbing dimensionles
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Yu, Zhizhuang, and Yong Wang. "Exploration of Enhanced Heat Dissipation Design for Brake Disc of High Speed Train." In ASME 2010 Rail Transportation Division Fall Technical Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/rtdf2010-42007.

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The function of the brake disc is to provide the ultimate guarantee of the safety of high speed trains. A braking unit includes two discs and two brake shoes. Braking performance depends on the pressure of the brake shoe and the friction between the disc and the shoe. When a train is braked, the brake disc endures a thermal load, which may affect the mechanical properties of the disc. If the thermal load exceeds the strength limit of the material, it could impact the safe running of the train. Therefore, the thermal load should be reduced as much as possible. Now the frictional surface of disc
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Lu, Zhenghong, Jian Song, and Liangyao Yu. "Seamless Shifting Control Based on Power Balance Method in Emergency Braking Condition." In ASME 2021 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/detc2021-71284.

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Abstract Implementation of multi-speed transmission for battery electric vehicle (BEV) is considered as one of effective methods in improving dynamic capability, reducing power consumption and downsizing the powertrain. Considering two trends of automotive technology, advanced driving assistance system (ADAS) and BEV electric powertrain, equipped with a two-speed transmission, can enhance the performance of automatic emergency braking systems (AEBS). When downshift operation is executed during regenerative braking, the multi-speed transmission in first gear can provide adequate brake force cap
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Ganesh, V., and Chidambaram Subramanian. "Variable Braking Force Using Intelligent Twin Calipers." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86594.

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Automobile Braking System is one of the most important sub systems of the vehicle. It is the primary safety system since the stopping of the vehicle is majorly dependent on this system. This system utilises the frictional force between the tire and the road to stop the vehicle. The braking force required by the vehicle is governed by two factors. One of them is the coefficient of friction between the tire and the road surface, the other one is the load on the vehicle. Thus, required braking force to halt the vehicle with the minimum possible stopping distance varies with the load in the vehicl
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Putov, Victor V., Anton V. Putov, Anastasiia D. Stotckaia, Victor N. Sheludko, and Konstantin V. Ignatiev. "The measurement method of runway frictional properties correlated with the braking performance of aircraft." In 2016 XIX IEEE International Conference on Soft Computing and Measurements (SCM). IEEE, 2016. http://dx.doi.org/10.1109/scm.2016.7519720.

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Zhu, Hengjia, Yidong Tian, and Wei Zhang. "Studies of Tire Frictional Characteristics on the Snowy Road." In WCX SAE World Congress Experience. SAE International, 2023. http://dx.doi.org/10.4271/2023-01-0756.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;The tire frictional characteristics, which are the most critical factors of braking performance, depend on the road condition. Unsafe accidents always occur when driving in a hostile environment, especially under snowy road conditions. The coupled dynamic behaviors between the tire and the snow on the road are closely related to the water film generated from the tire rolling on the snow. The winter tire and summer tire with specification 175/65R14 are modeled separately by the finite element method (FEM), and the stiffne
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Baillet, L., V. Linck, S. D’Errico, B. Laulagnet, and Y. Berthier. "Finite Element Simulation of Dynamic Instabilities in Frictional Sliding Contact." In STLE/ASME 2003 International Joint Tribology Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/2003-trib-0260.

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This paper describes tools for numerical modelisation which enable the understanding of the appearance of the vibration of structure generated by the frictional contact between two bodies (the excitation source being friction). The dynamic finite element code PLASTD is used to reproduce transitory phenomena generated at the contact interface. This code includes contact and friction algorithms based upon the formulation of Lagrange multipliers. A numerical study of the dynamic response of a 2D mechanical model composed of a deformable plane in relative translation and unilateral contact with Co
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Reports on the topic "Frictional braking"

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Morozumi, Hiroki, Yukio Takai, Masato Yamaguchi, Zhao Ma, Manabu Ono, and Takahiro Tokunaga. Development of a New NAO Friction Material With Good Braking Feel and NVH Capability. SAE International, 2005. http://dx.doi.org/10.4271/2005-08-0668.

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Bao, Jieyi, Xiaoqiang Hu, Cheng Peng, et al. Advancing INDOT’s Friction Test Program for Seamless Coverage of System: Pavement Markings, Typical Aggregates, Color Surface Treatment, and Horizontal Curves. Purdue University, 2024. http://dx.doi.org/10.5703/1288284317734.

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Various highway projects, roadway safety, and maintenance all hinge on pavement friction. INDOT's pavement friction test program has played a crucial role in addressing issues like wet pavement crash reduction, durable pavements surface friction, and sustainable aggregates. However, changes in the transportation sector, allied industries, societal needs, and economics present unique challenges that require proactive solutions. First, the existing field friction testing method, which uses a locked wheel skid tester (LWST) is limited to straight, flat pavement sections and excludes crash-prone a
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Ward, Andrew, Anthony Falls, and Craig Rutland. Development of smartphone-based semi-prepared runway operations (SPRO) models and methods. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42500.

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The U.S. Army Engineer Research and Development Center (ERDC) has developed a method for predicting surface friction response by use of ground vehicles equipped with deceleration-based measurement devices. Specifically, the ERDC has developed models and measurement methods between the Findlay Irvine Mk2 GripTester and a variety of deceleration measurement devices: Bowmonk AFM2 Mk3, Xsens MTi-G-710, two Android smartphones, and two iOS smartphones. These models show positive correlation between ground vehicle deceleration and fixed-slip surface continuous surface friction measurement. This effo
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