Bibliografie tematiche / Disc brakes

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Letteratura scientifica selezionata sul tema "Disc brakes"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 27 gennaio 2023

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Articoli di riviste sul tema "Disc brakes"

Wadile, Ratnajeet. "Thermal Analysis of a Disc". International Journal for Research in Applied Science and Engineering Technology 9, n. 10 (31 ottobre 2021): 1910–15. http://dx.doi.org/10.22214/ijraset.2021.38476.

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Abstract: The disk brakes are special mechanized parts in a vehicle attached with the tires to help reduce the velocity of the vehicle. As the brake pads caused friction with the disc brakes, there is a temperature rise. Due to this there are great chances of disc brake’s failure if temperature rises above some permissible limit. Solidworks and ANSYS are the design and analysis tools which are used to accomplish this project. The disc brake was designed using Solidworks and it was analysed in ANSYS workbench. The main aim of this project is to analyse two-disc brakes manufactured with different materials to compare their properties and select one with most benefits. Keywords: ANSYS, FEA, Disc brake, Thermal analysis, braking system, Radiation.

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Pradhan, Dr Swastik, Santhosh M, Palepu rithvik e Katkam Ravi Teja. "Modelling and analysis of ventilated disc Brakes using Creo and FEA software". International Journal for Research in Applied Science and Engineering Technology 10, n. 6 (30 giugno 2022): 1359–70. http://dx.doi.org/10.22214/ijraset.2022.43959.

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Abstract: An important part of a car's safety system is the brakes. Brakes are easily worn, leading to unpredictable disasters. To avoid this, ventilated disc brakes are used, which helps the brakes to work well in stressful conditions and high temperatures. The materials used play an important role in determining performance. The main objective of this research work is to analyze the current design and conduct a suitable brake rotor analysis to improve its performance. Existing brake disc designs are modeled in Creo and analyzed with software. The material grades used in this study were performed on stainless steel, grey cast iron, structural steel, and titanium alloy brake discs using the same brake disc design to determine the best grade. Keywords: ventilated disc brake, creo, thermal analysis, static analysis.

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Sawczuk, Wojciech, Armando Miguel Rilo Cañás, Dariusz Ulbrich e Jakub Kowalczyk. "Modeling the Average and Instantaneous Friction Coefficient of a Disc Brake on the Basis of Bench Tests". Materials 14, n. 16 (23 agosto 2021): 4766. http://dx.doi.org/10.3390/ma14164766.

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This article presents the results of tests conducted on the average and instantaneous friction coefficients of railway vehicle disc brakes. The tests were carried out independently of various states of wear on the friction linings and the brake disc. The requirements of the International Union of Railways (UIC) regarding the approval of brake linings for use were taken into account. Based on many years of research using a brake bench to test railway disc brakes, the authors developed multiple regression models for the average friction coefficient and fluctuations (tolerances) in the instantaneous friction coefficient and achieved 870 results. The models proposed three types of variables: the input braking parameters (speed, pressure, and mass to be braked), operational parameters (the wear on the friction linings and the brake disc), and design parameters (perforations in the form of holes on the disc surface). The above two models were validated on the basis of 384 brakes, and in subsequent stages a further evaluation was performed. The coefficients were determined to be, respectively, 0.99 for the model of the average friction coefficient and 0.71 for the model of tolerance (fluctuations) of the instantaneous friction coefficient.

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Afnison, Wanda, Wagino Wagino, Nuzul Hidayat, Muslim Muslim e Masykur Masykur. "Analysis Thermal Pada Solid dan Ventilated Disk Brake Pada Mobil Hemat Energy Pagaruyuang Team UNP". Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi 7, n. 1 (24 giugno 2021): 44. http://dx.doi.org/10.35308/jmkn.v7i1.3699.

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This study discusses the thermal analysis of the disc brakes used in UNP energy-efficient cars. There are three types of disc brake designs that are simulated, namely solid disc brake, circular hole ventilated and vane ventilated types. Using the finite element method, the three disc brake designs analyzed the characteristics of the heat received from the braking process. Disc brakes with better heat dissipation ability are the most suitable type to use. From the simulation results, the ventilated (circular hole) disc brakes have the best heat dissipation capability with a maximum temperature of 635,520 K, lower than the vane and solid types where the maximum is obtained. temperatures of 5700 K and 809.50 K . The vane type disc brake design is a disc brake design with the worst heat dissipation capability which has the highest final temperature of 809.50 K.Keywords—Thermal analysis, disk brake, heat, high efficiency vehicle

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Kristyawan, Yudi, e Muchammad Asro Rofi’i. "Early Detection of Overheating in Motorcycle Disc Brakes Based on Arduino". Inform : Jurnal Ilmiah Bidang Teknologi Informasi dan Komunikasi 6, n. 1 (31 gennaio 2021): 21–27. http://dx.doi.org/10.25139/inform.v6i1.3348.

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The braking system is very important on a motorcycle. The primary function of the braking system is to slow down and even stop the motorcycle. The braking system using disc brakes on motorcycles is commonly used today, especially on automatic transmission motorcycles. One of the disadvantages of disc brakes is the heat caused by the disc's friction with the brake pads if you apply continuous braking. This continuous braking is often done by a motor rider when crossing downhill roads in mountainous areas. Excessive heat in the disc brakes causes the brake fluid to boil, resulting in air bubbles resulting in braking failure. The failure of the braking system on a motorcycle is hazardous for the rider and others. The experimental method detects braking system failure by catching the disc brake's temperature with a touchless temperature sensor, MLX90614. Temperature detection is processed with Arduino as a control, and the temperature is displayed on the LCD. If the disc brake temperature is above 200oC, a buzzer is activated as a warning to the driver. The test results show that the system can display a temperature reading on the LCD lower than the thermometer gun, with the most inferior reading difference of 0.2oC and the highest 0.4oC. The system can also display notifications to users on disc brake temperatures above 200oC, namely at temperatures of 211.1oC, 224.3oC, and 237.5oC, which were achieved at 200, 225, and 250 seconds.

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García-León, R. A., N. Afanador-García e J. A. Gómez-Camperos. "Mechanical and Dynamic Maps of Disc Brakes under Different Operating Conditions". Fluids 6, n. 10 (13 ottobre 2021): 363. http://dx.doi.org/10.3390/fluids6100363.

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The operating conditions during the braking process in an automobile affect the tribological contact between the pad and disc brake, thus, influencing the times and distances of braking and, in a more significant way, the safety of the braking process. This mathematical work aimed to provide a general visualization of the disc brake’s mechanical, dynamic, and thermal behavior under different operating conditions through 2D maps of the power dissipated, braking time, and braking distance of a disc brake with a ventilation blade N- 38 type. However, the dissipated energy on the disc brake in terms of temperature was analyzed considering Newton’s cooling law and mathematical calculations through classical theories of the dynamic and mechanical behavior of the disc brakes. For this purpose, the Response Surface Methodology (RSM) and Distance Weighted Least Squares (DWLS) fitting model considered different operating conditions of the disc brake. The results demonstrate that the disc brakes can be used effectively in severe operational requirements with a speed of 100 km/h and an ambient temperature of 27 °C, without affecting the occupant’s safety or the braking system and the pad. For the different conditions evaluated, the instantaneous temperature reaches values of 182.48 and 82.94 °C, where the high value was found for a total deceleration to 100 km/h to 0, which represent a total braking distance of around 44.20 to 114.96 m depending on the inclination angle (θ). Furthermore, the energy dissipation in the disc brakes depends strongly on the disc, blades and pad geometry, the type of material, parameters, and the vehicle operating conditions, as can be verified with mathematical calculation to validate the contribution of the effectiveness of the braking process during its real operation.

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Yin, Yan, Jiusheng Bao, Jinge Liu, Chaoxun Guo, Tonggang Liu e 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, n. 10 (3 agosto 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 performance was investigated deeply. First, braking simulation tests of disc brakes were carried out, and then dynamic variation laws and mechanisms of braking torque and interface temperature were discussed. Furthermore, some parameters including average braking torque, trend coefficient and fluctuation coefficient of braking torque, average temperature, maximum temperature rise, and the time corresponding to the maximum temperature rise were extracted to characterize the braking performance of disc brakes. Finally, the influential law and mechanism of excitation voltage on braking performance were analyzed through braking simulation tests and surface topography analysis of friction material. It is concluded that the performance of frictional-magnetic compound disc brake is prior to common brake. Magnetic field is greatly beneficial for improving the braking performance of frictional-magnetic compound disc brake.

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Chen, Dong Fa, Li Ma, Xue Xun Guo e Qi Zhang. "Parametric FEM Analysis of Disc Brake". Applied Mechanics and Materials 483 (dicembre 2013): 199–202. http://dx.doi.org/10.4028/www.scientific.net/amm.483.199.

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A parametric FEM analysis method is introduced for the design of disc brakes. The basic process of parametric FEM modeling is summarized, the FEM model of disc brakes is established. Finally, the parametric FEM strength and stiffness analysis are conducted for the typical disc brake assembly.

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Zhang, Hai Tao, Ying Jun Dai, Yu Jing Jia e Guang Zhen Cheng. "The Design of Disc Brake for Mine Hoist in Civil Engineering". Advanced Materials Research 568 (settembre 2012): 212–15. http://dx.doi.org/10.4028/www.scientific.net/amr.568.212.

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This article will describe the research status and the features of control system of the disc brakes of mine hoist. The disc brakes consist of body, outer cylinder, cylinder, piston, ring, disc springs, plunger, gate disk and other components. The disc brakes use the pre-load of disc springs to force the piston to move towards the brake disc, push the brake pads out, then the brake pads and drum brake disc contact and resulting in positive pressure, then the formation of friction produce a braking torque. When the brake system loose pads, the cylinder is filled with the pressure oil, which make the piston compresses the disc springs, and promote the brake pads to move back and then left brake disc, remove the braking force. The hydraulic circuit of the braking system chooses two-way parallel oil and four oil cylinder brake. A slip road set up a one-way throttle, making the slip road brake slightly delayed, which will achieve two stage braking and make work more stable. This disc brake is normally closed, which means when the hoist does not work, the brake is in the state of braking to prevent the occurrence of accidents. This brake is safe, reliable and sensitive in action. The materials of brake pads is rigid asbestos plastic, which have stable friction coefficient, good wear resistance, is not sensitive to the aqueous medium and salt spray,it has flexible installation location, and it is easy to use, adjust and maintain.

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Wen, Min. "An Analysis of the Coupling Between Temperature and Thermal Stress of Disc Brakes Based on Finite Element". International Journal of Heat and Technology 39, n. 6 (31 dicembre 2021): 1819–27. http://dx.doi.org/10.18280/ijht.390616.

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Disc brakes have been more widely used in recent years due to its many merits such as fast heat absorption and dissipation, and resistance to water fade. Since it’s difficult to describe the failure of brakes under complex working conditions in only a few times of thermal-structural coupling simulations, this paper analyzed the coupling between temperature and thermal stress of disc brakes under multiple continuous braking conditions. At first, a 3D model of bus disc brake was built in ABAQUS, and its braking motion and dynamic parameters, heat flux density, convective heat dissipation coefficient, heat flux distribution coefficient, and other thermodynamic parameters were calculated. Then, the numerical simulation of the temperature field of disc brake and the coupling analysis of thermal stress under different braking conditions were completed. At last, experimental results gave the analysis results of the temperature distribution characteristics of brake disc surface, and the comparison and demonstration of the finite element analysis were conducted.

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Più fonti

Tesi sul tema "Disc brakes"

Stephens, Arthur William, e arthur stephens esb ie. "Aerodynamic Cooling of Automotive Disc Brakes". RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070108.121737.

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Sufficient heat dissipation is crucial to the effective operation of friction based braking systems. Such cooling is generally provided by ensuring a sufficient supply of cooling air to the heated components, hence the aerodynamics in the region of the brake components is extremely important. The objective of the research was to develop an understanding of how aerodynamics could be used to improve the cooling of automotive disc brakes. Two separate sets of wind tunnel experiments were developed. Tests were performed on a vented disc (rotor) to measure the internal flow through the vents on a rotating vented disc under various conditions, including an isolated disc in still air, the disc in still air with the wheel on, the disc in moving air with the wheel on, and an on-road simulation using a ¼ car. On vehicle tests were also performed in a wind tunnel using a purpose built brake test rig. These tests measured the thermal performance of different brake discs under various operating parameters; including constant load braking, and cooling from high temperature under various speeds, wheels and disc types. It was found that airflow through vented rotors was significantly reduced during simulated on-road driving, compared to when measured in isolation, but not particularly affected by the vehicles speed. In the situations tested, vented discs offered a 40+% improvement in cooling over an equivalent sized solid rotors. However the research indicates that the greatest benefit of vented rotors over solid will be in vehicles where air entering the wheel cavity is limited, such as low drag vehicles. It was also found that the most significant improvements in brake thermal performance could be achieved by maximising the airflow into the region of the brake components; including increasing the open area of the wheel, and increasing the vehicle velocity. Other improvements can be achieved by using a wheel material with good conductive capability, and increasing the mass of the disc. Evidence of vortex shedding was also discovered in the airflow at the exit of an internal vented rotor, any reduction in this flow disturbance should lead to increased airflow with associated improvements in thermal performance.

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Pulugundla, Gautam. "CFD design analysis of ventilated disc brakes". Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/6578.

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This thesis reports the numerical investigation of the automotive ventilated disc brake rotor. Disc brakes operate on the principle of friction by converting kinetic energy into heat energy. The main objective of a disc brake rotor is to store this heat energy and dissipate it as soon as possible. This work is carried out in a area where there is very limited understanding. Commercial CFD code FLUENT was used for carrying out the simulations with the rotor rotating in still air. Only one passage and blade were simulated as all the rotor passages were identical. Uniform temperatures were used on the rotor to simulate the braking condition. Sixteen different blade angle sets were simulated and the range of blade angles having the best aero-thermal performance were identified using mass flow rate, rate of heat dissipation and temperature uniformity as performance metrics. The effect of rotational speed and rotor temperature (corresponding to various braking conditions) on the aero-thermal performance was evaluated. The rotor speed and temperature were observed to have significant effect on the rotor performance. The number of blades in the ventilated disc brake rotor was also varied and was observed to have an impact on the aero-thermal performance of the disc brake rotor. Detailed design changes like inlet chamfer, blade leading edge rounding, and variable thickness blade and passage aspect ratio were incorporated. All these changes did have an effect on the aero-thermal performance of the disc brake rotor. The inlet chamfer and the leading edge rounding improved both the rate of heat transfer and the temperature uniformity. The variable thickness blade and the lower aspect ratio passage improved the temperature uniformity of the rotor.

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Koetniyon, Saiprasit. "Thermal stress analysis of automotive disc brakes". Thesis, University of Leeds, 2000. http://etheses.whiterose.ac.uk/2938/.

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A brake disc rotor forms pan of a foundation brake and rotates with the wheel hub assembly. The main function of a foundation brake is to generate a retarding torque by converting mechanical energy to thermal energy by virtue of the frictional work done in relative sliding at the rotor-pad interface. In practice, most brake discs arc made from cast iron and in use arc sometimes subjected to high thermal stresses which can lead to permanent plastic deformation and occasionally rotor cracking. The aim of the present work is to investigate the thermal response of such a cast iron brake disc using the finite element (FE) method. One particular existing brake disc design for a medium passenger car was chosen for the investigation. This is a "back-vented" disc designed to minimise disc coning but the present work also includes an investigation of a conventional "frontvented" disc similar in dimension to the back-vented disc but with different detailed geometry. Experimental work was undertaken to derive the rotor material properties in tension and compression as a function of temperature. This data was used to generate suitable FE material model routines which accurately allow for the different temperature-dependent yield properties of cast iron in tension and compression. The modelling work highlights the role of the rotor geometry in controlling the thermal response of the structure but. more importantly, the necessity for an accurate material model is illustrated, particularly with regard to its ability to predict the accumulation of plastic strain which may lead to rotor cracking. Using the most accurate user developed material subroutine, the thermal response of the back-and front-vented disc designs are compared: the back-vented disc suffers lower thermal distortion but at the expense of higher plastic strain accumulation, particularly near the point of attachment of the vanes.

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Ahmed, Ibrahim Lotfy Mohamed. "Study of the behaviour of vehicle disc brakes". Thesis, Northumbria University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393861.

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Dzirasa, Mawuli. "Experimental investigation of dither control for the suppression of automotive brake squeal". Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17604.

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Leigh, Benjamin David. "Strength degradation of carbon-carbon composites for aircraft brakes". Thesis, University of Bath, 1999. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285332.

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Wahlström, Jens. "A study of airborne wear particles from automotive disc brakes". Doctoral thesis, KTH, Maskinelement, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31152.

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Abstract (sommario):

During braking, both the disc and pads in disc brakes are worn. Since disc brakes are not sealed,some of the wear particles generated can become airborne. Several studies have found anassociation between adverse health effects and the concentration of particles in the atmosphere,so it is of interest to improve our knowledge of the airborne wear particles generated by discbrakes. This thesis deals with experimental and computational methods focusing on airborne wearparticles from disc brakes. The eight appended papers discuss the possibility to both measure andnumerically determine the concentration and size distribution of airborne wear particles thatoriginate from the pad-to-disc contact. The objective is to increase the scientific knowledge ofairborne wear particles generated from disc brakes. Papers A, B and C describe tests of disc brake materials conducted in a modified pin-on-discmachine. The results show that the test set-up can be used to measure and rank disc brakematerials with respect to the concentration of airborne particles generated. Ultrafine (nanosized),fine and coarse airborne wear particles that contain metals such as iron, copper and tin werefound. Papers D and E describe a novel disc brake assembly test stand and tests of disc brake materialsconducted in it. The results show that the test set-up can be used to measure the concentrationand size distribution of airborne wear particles generated from disc brake materials. The resultsalso indicate an ability to rank different pad/disc combinations with respect to the concentrationof airborne wear particles. Furthermore, the results suggest that this test stand can be used tostudy rust layer removal from the disc and that airborne particles are generated even at low brakepressures, such as used to remove dirt from the disc. Paper F compares measurements made in passenger car field tests with measurements made in adisc brake assembly test stand and in a pin-on-disc machine. A promising correlation between thethree different test methods is found. Paper G presents and discusses a simulation methodology that numerically determines theconcentration and size distribution of airborne wear particles generated from the pad-to-disccontact in disc brakes by using general-purpose finite element software. Paper H discusses a cellular automaton model that describes the microscopic contact situationbetween the pad and disc in disc brakes. This model is used to numerically determine the amountof wear that leaves the contact. The results correlate qualitatively with experimental observationsfound in the literature.
QC 20110317

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Steel, William Perry. "Absolute displacement measurement of noisy disc brakes using holographic interferometry". Thesis, University of Huddersfield, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418627.

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Voller, Gordon Paul. "Analysis of heat dissipation from railway and automotive friction brakes". Thesis, Brunel University, 2003. http://bura.brunel.ac.uk/handle/2438/5558.

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The thesis presents research into the understanding and improvement of heat dissipation from friction brakes. The investigations involved two brake types, considered to be the most thermally loaded and therefore most challenging; axle mounted high speed railway and commercial vehicle disc brakes. All three modes of heat transfer (conduction, convection and radiation) and airflow characteristics have been analysed experimentally and theoretically in order to increase the understanding of heat dissipation. Despite the very practical aspects of this research, a 'generic heat transfer approach' was applied, enabling wider engineering applications of the results. Experimental analyses conducted on a specially developed Spin Rig allowed measurements of cooling and airflow characteristics for different designs. Methodologies have been developed to determine thermal contact resistance, heat transfer coefficients, emissivity and aerodynamic (pumping) losses. Established values and relationships compared very favourably with theoretical work. Analytical, FE and CFD analyses were employed to further investigate design variations and perform sensitivity studies. Inertia dynamometer route simulations provided disc temperatures for validation of the overall work. Recommendations have been made for optimising heat dissipation, by proposing practically acceptable and economically viable design solutions. A proposed ventilated disc design efficiency ratio allows large, high speed ventilated disc designs, to be efficiently and accurately evaluated and compared, providing a valuable disc design optimisation tool. The determination of the methodologies, parameters and functions defining cooling characteristics, enable heat dissipation to be predicted confidently and accurately for brakes and other engineering assemblies at early design stages.

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Graf, Aaron John. "Active control of automotive disc bake rotor squeal using dither". Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/16933.

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Più fonti

Libri sul tema "Disc brakes"

Engineers, Society of Automotive, a cura di. Air disc brakes. Warrendale, PA: Society of Automotive Engineers, 1986.

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Board, United States National Transportation Safety. Heavy vehicle airbrake performance. [Washington, D.C.]: The Board, 1992.

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Emery, A. F. Experimental study of automotive brake system temperatures. [Olympia]: Washington State Dept. of Transportation, 1997.

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Wehner, Jan-Hendrik, Dominic Jekel, Rubens Sampaio e Peter Hagedorn. Damping Optimization in Simplified and Realistic Disc Brakes. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-62713-7.

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Frank, Chen, Tan Chin An e Quaglia Ronald L, a cura di. Disc brake squeal: Mechanism, analysis, evaluation, and reduction/prevention. Warrendale, PA: SAE International, 2006.

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Leasure, William A. Antilock systems for air-braked vehicles. Warrendale, PA: Society of Automotive Engineers, 1989.

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United States International Trade Commission. In the matter of certain portable on-car disc brake lathes and components thereof. Washington, DC: U.S. International Trade Commission, 1995.

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International, Conference on Disc Brakes for Commercial Vehicles (1988 London England). Disc brakes for commercial vehicles: 1-2 November 1988, the Institution of Mechanical Engineers, Birdcage Walk, London. London: Published for the Institution of Mechanical Engineers by Mechanical Engineering Publications Ltd., 1988.

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Conference, Institution of Mechanical Engineers (Great Britain) International. Disc brakes for commercial vehicles: Proceedings of the Institution of Mechanical Engineers : international conference, 1-2 November 1988, The Institution of Mechanical Engineers, Birdcage Walk, London. Bury St. Edmunds: published for the Institution of Mechanical Engineers by Mechanical Engineering Publications, 1988.

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Chen, Frank, Chin A. Tan e Ronald L. Quaglia. Disc Brake Squeal. Warrendale, PA: SAE International, 2005. http://dx.doi.org/10.4271/r-353.

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Capitoli di libri sul tema "Disc brakes"

Wehner, Jan-Hendrik, Dominic Jekel, Rubens Sampaio e Peter Hagedorn. "Optimization of Finite Element Models of Disc Brakes". In Damping Optimization in Simplified and Realistic Disc Brakes, 31–48. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62713-7_4.

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Fijalkowski, B. T. "Electro-Mechanical Friction Disc, Ring and Drum Brakes". In Automotive Mechatronics: Operational and Practical Issues, 529–39. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-94-007-0409-1_34.

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Wehner, Jan-Hendrik, Dominic Jekel, Rubens Sampaio e Peter Hagedorn. "Optimization of a Minimal Model of Disc Brake". In Damping Optimization in Simplified and Realistic Disc Brakes, 17–30. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62713-7_3.

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Qiao, S., e R. A. Ibrahim. "Stochastic Dynamics of Friction- Induced Vibration in Disc Brakes". In Solid Mechanics and Its Applications, 331–42. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0179-3_29.

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Wehner, Jan-Hendrik, Dominic Jekel, Rubens Sampaio e Peter Hagedorn. "Introduction". In Damping Optimization in Simplified and Realistic Disc Brakes, 1–2. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62713-7_1.

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Wehner, Jan-Hendrik, Dominic Jekel, Rubens Sampaio e Peter Hagedorn. "Theoretical Background". In Damping Optimization in Simplified and Realistic Disc Brakes, 3–15. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62713-7_2.

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Wehner, Jan-Hendrik, Dominic Jekel, Rubens Sampaio e Peter Hagedorn. "Conclusion". In Damping Optimization in Simplified and Realistic Disc Brakes, 49–50. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-62713-7_5.

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Wang, Jianbin, e Jishu Yin. "Fuzzy Optimization Design of Disc Brakes Based on Genetic Algorithm". In Advances in Mechanical Design, 661–68. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9941-2_54.

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Sokolska, Justyna, e Piotr Sokolski. "Thermal Evaluation of Operation of Disc Brakes Made of Selected Materials". In Lecture Notes in Mechanical Engineering, 688–95. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-04975-1_79.

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Yi, Yun-Bo, J. R. Barber e D. L. Hartsock. "Thermoelastic Instabilities in Automotive Disc Brakes — Finite Element Analysis and Experimental Verification". In Solid Mechanics and Its Applications, 187–202. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1154-8_20.

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Atti di convegni sul tema "Disc brakes"

Thompson, Richard E. "Improving Disc Brakes". In International Truck & Bus Meeting & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1994. http://dx.doi.org/10.4271/942301.

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Polak, Adam, Janusz Grzybek, Stanisław Pytko e Kirill Voynov. "Reuse of Wear Debris in Automotive Disc Brakes". In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63346.

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Abstract (sommario):

Paper presents an idea of wear debris reuse in the automotive disc brakes. According to this idea, worn material is used as a material building up third body. Application of this idea leads to diminishing of brake discs and brake pads wear.

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Metwalli, Sayed M., Hesham A. Hegazi e Usama M. Abdel-Aal. "CAD of Disc Brakes by Multi-Objective Optimization". In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/cie-9139.

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Abstract This paper is concerned with CAD techniques to solve the multi-objective problem of designing optimum disc brakes. The geometrical parameters affecting disk brake design such as the outer and inner disc diameters, disc thickness, pad thickness and pad angle are considered. A computer aided optimum design program is constructed with full graphics interface for automatic viewing and further detailing of the design construction. The design vector for optimizing disc brakes includes the outer disc diameters, diameter ratio, disc thickness, and pad angle. The multi-objectives formulation satisfies maximum attained torque; minimum actuating force; minimum thermal stresses; minimum temperature and minimum disc volume. A comparison with previous optimization results indicates a marked saving since previous results did not consider all design objectives and parameters.

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Metwalli, Sayed M., e Hesham A. Hegazi. "Computer-Based Design of Disc Brakes by Multi-Objective Form Optimization". In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/cie-21680.

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Abstract This paper is concerned with the application of CAD to design disc brakes using multi-objective form optimization. Temperature and disc (rotor) volume are two competing design objective functions used to obtain the optimum design parameters of disc brakes. The geometrical parameters affecting disk brake design such as the outer and inner disc diameters, disc thickness, pad thickness and pad angle are considered. The exponents of the two competing objective functions are to be optimized for better results. A sensitivity analysis of the two exponents (A and B) is used for this optimization procedure. The design vector for optimizing disc brakes includes the outer disc diameters, diameter ratio, disc thickness, and pad angle. The multi-objective formulation satisfies maximum attained torque; minimum actuating force; minimum thermal stresses; minimum temperature and minimum disc volume. A comparison with two previous optimization results indicates a marked improvement of the present design since previous results did not consider all design parameters or optimized objectives.

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Jancirani, J., S. Chandrasekaran e P. Tamilporai. "Investigation on Thermal Loading of Disc Brakes: An Approach". In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47364.

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In the wide range of braking speed, the disc brakes are subjected to temperature variation and thermal loading. Different modelling approaches ranging from a simple lumped parameter model to complex three-dimensional models are available for the thermal analysis of the disc brakes. Based on the review of the above models, a model has been developed and formulated for the analysis of thermal loading of disc brake. The developed model is proposed to couple with a model for the thermal distortion of disc brake. It is also proposed to conduct the necessary experiments and thermal analysis to validate the results obtained from the synthesized analysis.

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Yano, Masataka, e Masahiko Murata. "Heat Flow on Disc Brakes". In Vehicle Thermal Management Systems Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1993. http://dx.doi.org/10.4271/931084.

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Abdelhamid, Mohamed Khalid. "Creep Groan of Disc Brakes". In SAE Noise and Vibration Conference and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1995. http://dx.doi.org/10.4271/951282.

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Jancirani, J., S. Chandrasekaran e P. Tamilporai. "Design and Heat Transfer Analysis of Automotive Disc Brakes". In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47362.

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In the recent scenario of braking system for automobiles, disc brake takes up a wide range of applications, because of its simplicity in construction, operation and not self energizing as in the case of drum brakes. Since the disc brakes takes up a wide range of application, it is essential to ensure the reliable function of the braking system under varied operating conditions. The reliable function of the disc brake system is purely depends on the system based design. In this work, a linear regression technique is used for the optimal design of the disc brake rotor for varied operating conditions. Various forces involved during braking, energy generated during braking and the corresponding effective stopping distances were also calculated using appropriate governing relations and equations. In the varied operating conditions, the heat energy generated during braking should be driven away form the working surfaces of the components. To analyze this thermal loading and cooling phenomenon, a conventional convective heat transfer approach was also formulated and developed in this work. The analytical findings of the above approaches are demonstrated at the end and it is found to be quite satisfactory.

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Borchert, Thomas. "Dynamical Behaviour of the Disc Brake Pad". In Annual Colloquium On Brakes & Engineering Display. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1991. http://dx.doi.org/10.4271/912656.

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Jacobsson, Helena. "Wheel Suspension Related Disc Brake Judder". In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/vib-4165.

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Abstract Brake judder can be explained as a dynamical amplification of brake torque variation (BTV) when passing through a critical speed of a vehicle. The BTV arises owing to different geometrical defects e.g. disc thickness variation (DTV), disc runout and dynamical effects. DTV is usually the most important source of these fluctuations. Measurements have been made on a passenger car with heavy DTV on one of its front brakes. The eigen frequency of the wheel suspension was found to be 14 Hz, corresponding to a first order critical speed of 95 km/h. These measurements qualitatively verify the brake model with a maximum caliper vibration amplitude close to 100 km/h followed by a slowly decreasing amplitude.

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Rapporti di organizzazioni sul tema "Disc brakes"

Yumoto, Hiroyuki, Yukio Yamada e Toshikazu Okamura. Integrated Brake Disc Design Support System. Warrendale, PA: SAE International, maggio 2005. http://dx.doi.org/10.4271/2005-08-0333.

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Blau, Peter Julian. Prospects for Titanium-Based Materials as Truck Disc Brake Rotors. Office of Scientific and Technical Information (OSTI), settembre 2010. http://dx.doi.org/10.2172/1081592.

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Yuasa, Hitoshi, Kazuya Okubo, Toru Fujii e Tsuyoshi Nakatsuji. Prediction of Crack Initiation for One-Piece Type Brake Disc for Motorcycles under Overload Condition. Warrendale, PA: SAE International, ottobre 2005. http://dx.doi.org/10.4271/2005-32-0047.

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Agudelo, Carlos E., Jeffrey A. Gist e Alex J. Nicholson. ATPD-2354 Revision 10 Verification Test, Disc Brake Version Only (16 NOV 06) Article Test of High Mobility Multipurpose Wheeled Vehicle (HMMWV-ECV). Fort Belvoir, VA: Defense Technical Information Center, maggio 2007. http://dx.doi.org/10.21236/ada477655.

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TEST ON RESILIENCE CAPACITY OF SELF-CENTERING BUCKLING RESTRAINED BRACE WITH DISC SPRINGS. The Hong Kong Institute of Steel Construction, agosto 2022. http://dx.doi.org/10.18057/icass2020.p.156.

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The properly constructed buckling restrained braces (BRBs) usually have good ductility and energy dissipation capacity and therefore can be used in braced steel frames. However, large residual plastic deformation of the BRBs deteriorates their resilience capacity and hence results in large residual deformation of the buckling restrained braced steel frames (BRBFs) under large drifts. To reduce the residual deformation of BRB while keeping good ductility and energy dissipation capacity, a new self-centering buckling restrained brace (SCBRB), letting both BRB part and self-centering part work in parallel, is proposed. The self-centering capacity of SCBRB is provided by a combination of pre-compressed disc springs, which provides restoring forces and facilitates reduction of the residual deformation of the BRB. The BRB is composed of a core steel plate brace, a restraining member formed by the circular steel tube filled with mortar, and debonding materials between them. By quasi-static tests, one self-centering buckling restrained brace specimen (SCBRB) and one pure BRB specimen were tested to mainly examine the constructional details and hysteretic behavior of SCBRB. The material and configuration details of core steel plate brace in both the SCBRB and the pure BRB are the same for comparison. The test results show that, compared with the pure BRB which still exhibits large residual deformation, the SCBRB presents a flag-shape hysteretic performance and its residual deformation decreases significantly. The hysteretic curves of both the SCBRB and the pure BRB are stable before tension fracture of plate brace due to low cyclic fatigue, and the other components remained intact.

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Tire Experimental Characterization Using Contactless Measurement Methods. SAE International, agosto 2021. http://dx.doi.org/10.4271/2021-01-1114.

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In the frame of automotive Noise Vibration and Harshness (NVH) evaluation, inner cabin noise is among the most important indicators. The main noise contributors can be identified in engine, suspensions, tires, powertrain, brake system, etc. With the advent of E-vehicles and the consequent absence of the Internal Combustion Engine (ICE), tire/road noise has gained more importance, particularly at mid-speed driving and in the spectrum up to 300 Hz. At the state of the art, the identification and characterization of Noise and Vibration sources rely on pointwise sensors (microphones, accelerometers, strain gauges). Optical methods such as Digital Image Correlation (DIC) and Laser Doppler Vibrometer (LDV) have recently received special attention in the NVH field because they can be used to obtain full-field measurements. Moreover, these same techniques could also allow to characterize the tire behavior in operating conditions, which would be practically impossible to derive with standard techniques. In this paper we will demonstrate how non-contact full-field measurement techniques can be used to reliably and robustly characterize the tire behavior up to 300 Hz, focusing on static conditions. Experimental modal analysis will extract the modal characteristic of the tire in both free-free and statically preloaded boundary conditions, using both DIC and LDV. The extracted natural frequencies, damping ratios and full-field mode shapes will be used on one side to improve the accuracy of tire models (either by deriving FRF based models or updating FE ones) but also as a reference for future investigation on the tire behavior characterization in rotating conditions.

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