Thermal stress analysis of automotive disc brakes by saiprasit koctniyom bsc eng, msc eng. Structural and thermal analysis of brake disc ijedr. Structural analysis is done on the disc brake to validate the strength of the disc brake and thermal analysis is. Disc brake design and analysis cranfield university. Thermoelastic vibration analysis of disc brake based on multi. Pdf thermal analysis of disc brake made of different. The purpose of this work is to present a study of the thermomechanical behavior of the automotive disc brake during the braking phase. Heat generation and dissipation of disc brake rotor is analysed.
Pdf structural analysis of disc brake researchgate. Analysis of brake systems there are two main types of friction brake that have been in common use on road vehicles for many years. Design and analysis of ventilated disc brake iosr journal. The disc has a thicker friction ring connected to a conical section that, in turn, connects to an inner hub. The shoes are pulled away from the drum by the springs when the brakes are released. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary. According to uppal and probert s research, it can be known that the contact points will remain or. Janvijay pateriya, raj kumar yadav, vikas mukhraiya and pankaj singh. We can express the aim of this research as the following, during the brake operation the pads press to the tire disc, and as a result we will analyze the heat. Repetitive braking of the vehicle leads to heat generation during each braking event. The disc effective radius r e should be as large as possible, and the final design depends upon the pad surface area and aspect ratio step 2. Finite element analysis of disc brake by ansys workbench.
Also explore the seminar topics paper on disk brake with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. Squeal analysis of disc brake system hao xing beijing feaonline engineering co. The disc brake is usually made of structural steel, but may in some cases be. Pdf design, analysis and manufacturing of disc brake rotor. This work presents finite element modeling and modal analysis of discpad assembly using high end software tools. An automotive disc brake is a device which creates resistance to the motion of wheel under running conditions. Solidworks package is a dedicated modeling package used for design the. Thermal and structural analysis of disc brake assembly. Heat is generated due frictional contact between pad and disc. A layout of the proposed braking system is shown in figure 4. Design and analysis of brakes of gokart brake mechanical. Analysis of disc brake squeal using the complex eigenvalue method p. The first analysis is performed on the disc pad model without the presence of thermal properties. Solidworks, ansys, disc brake, fea finite element analysis.
Nov 30, 2015 while some entrylevel vehicles use drum brakes on the rear wheels, fourwheel disc brakes are commonly found on everything from family sedans, to trucks, to highperformance sports cars. Jan 07, 2019 a brake assembly is one of the components in any automobile that undergoes frequent stress and strain. A brake assembly is one of the components in any automobile that undergoes frequent stress and strain. The following work studies a conceptual design of a disc brake system. Design and analysis of disc brake rotor for a two wheeler n. How to ansys of a thermal analysis of disk brake youtube. An attempt is made to analyse the brake disc using analytical as well. Structural analysis on a disc brake and brake pad assembly. P abstract there is lot of upgrade in the technology of the automobile these days. In unit load, when o 1, the plastic state will occur. Drum brake also has an adjuster mechanism, an emergency brake mechanism and lots of springs. In this section two thermally coupled disc brake analysis examples are discussed. Keywords disc brake, thermal analysis, modal analysis, ansys i. This paper deals with the structural analysis of rotor disc of disc brake of baja sae 20 car through finite element analysis approach using ansys software.
This example shows the fully coupled thermalstress analysis of a disc brake. Thermal and structural analysis of disc brake assembly during. Omics international open access journals scientific. Disc brakes offer higher performance braking, simpler design, lighter weight, and better. Disc brake system 6 the disc brake system has many advantages over drum brakes. The disc brake is a wheel brake which slows rotation of the wheel by the friction caused by pushing brake pads against a brake disc with a set of calipers. Linear nonprestressed modal analysis and full nonlinear perturbed modal analysis is applied to predict frequency at which squeal occurs. This work deals with the analysis of heat generation and dissipation in a disc brake of an car. Transient thermal and structural analysis of the rotor. Pdf this paper presents optimized design of performance of disc brake using finite element analysis is to evaluate the performance under. The air gap between brake pads and disc can be recognized by the absence of clamping force at the beginning of the brake maneuver. So, the model is meshed and then analysed to get the detail and correct result of the stress of the contact surface figure 5 thermal meshing of disc brake figure 6 structural meshing of disc brake.
Calculations assumption was made that disc brakes will be used on both axles. S en z hang, jian z hang issn p rint 928716, issn o nline 25388460, k aunas, l ithuania 3 contact area consists of all the contact points and determines the size of the friction heat source. Diagnostics of the railway friction disc brake based on. Pdf thermal analysis of disc brake made of different materials. Thermal analysis of disc brakes using finite element. Thermoelastic vibration analysis of disc brake based on. The case of thermoelasticity on the same model with the.
Keywords braking system, thermal analysis, disc brake, finite. Design and analysis of disc brake rotor for a two wheeler. Structural performance of the discpad model such as deformation and vonmises stress is predicted. For analysis ventilated disc brake was messed using triangular surface mesher. In this paper mathematical inputs, and thermal loads of brake rotor, calculations of different parameters required for thermal analysis is done by taking suitable assumptions.
Cfd and design analysis of brake disc masters thesis in automotive engineering adrian thuresson department of applied mechanics division of vehicle engineering and autonomous systems road vehicle aerodynamics and thermal management chalmers university of technology gothenburg, sweden 2014 9avweuv thesis 2014. Therefore, only half of the disc and one brake pad is modeled, and symmetry boundary conditions are applied. After overcoming the air gap, slight oscillations occur due to the impact of the brake pads against the disc. Ansys and done the thermal analysis and modal analysis also calculate the deflection and heat flux. Introduction braking system in cars is arguably the most important subsystem of a vehicle. The number of nodes used in this meshing is 43161 and elements are 28042. Thermal analysis of disc brake using comsol haripal singh and harshdeep shergill department of mechanical engineering, rieit, ropar, p b india r ecieved 15 april 2012 accepted 30 april 2012 abstract. Structural and thermal analysis of rotor disc of disc brake ijirset. There is a lack of indepth analysis of transmission behavior and most influencing factors of hdbs for bicycles in scientific literature.
Pdf design, analysis and manufacturing of disc brake. Below chapters shows analysis and calculations which led to generate parameters for improved brake system for heavy transport car. The disc brake is modelled using creo parametric 3. In this project, a disc brake and a brake pad is designed, assembled and analyzed for the stresses experienced by the system gradually. When brakes are applied the temperature of the brake disc increases and is subjected to thermal stresses. The dimensions of the axisymmetric model are taken from a typical car disc brake. Brake disc rotor is an important component of disc brake assembly which is used to decelerate or stop the vehicle. Analysis of disc brake squeal using the complex eigenvalue method. Modeling and squeal analysis of brake disc rotor using ansys vignesh shanbhag 1, vikram singh 1, rathod abhik and baskar p corresponding author. The rotor of the disc brake systems heats up during braking action. Abstract transient thermal and structural analysis of the rotor disc of disk brake is aimed at evaluating the performance of disc brake rotor of a car under severe braking conditions and there by assist in disc rotor design and analysis.
Brake disc analysis with the help of ansys software janvijay pateriya, raj kumar yadav, vikas mukhraiya and pankaj singh asst. For the analysis of gray cost iron material of the disc brakes is carried out for study to structural analysis of disc brake. Typical brake disc and brake pad damage patterns and their root causes. Only use the brake components specified for the given vehicle application. The problem of disc brake squeal has been examined by developing a finite element model of the coupled pad disc system, conducting complex eigenvalue analysis and associating unstable modes with potential squeal problem areas. Analysis of disc brake squeal using the complex eigenvalue. Thermal and structural analysis of brake disc brake. Explore disk brake with free download of seminar report and ppt in pdf and doc format. How disc brakes work car disc brake systems are made up of the rotor, brake pads, pistons, and caliper. Braking power of a disc brake is determined by the rate at which kinetic energy is converted into heat due to frictional forces between the pad and the disc. This work deals with the thermal analysis of disc brake of a vehicle. The standard disc brake two wheelers model using in ansys and done the thermal analysis and modal analysis also calculate the deflection and heat flux, temperature of disc brake model.
Dec 25, 2016 brake disc static thermal fatigue life analysis. In the frictional thermal analysis of disc brake, many scholars assume that the heat flux on the two contact surfaces is equally distributed, which is unreasonable in practice. The problem of disc brake squeal has been examined by developing a finite element model of the coupled paddisc system, conducting complex eigenvalue analysis and associating unstable modes with potential squeal problem areas. The basic function of disc brake is to stop or slow down the motion of wheel by applying frictional force through calliper assembly.
A transient analysis for the thermo elastic contact problem of the disk brakes with heat generation is performed using the finite element analysis. Step by step procedure of how to do steady state thermal analysis of a disc brake fsae in ansys workbench. The main motive of undertaking this project of design and analysis of disc brake of gokart is to study and evaluate the performance under severe braking conditions and there by assist in disc rotor design and analysis. International journal of engineering trends and technology. The steeper the rise in the lower line, the harder the deceleration effect of the brake system. So a careful design and material selection is necessary to avoid the premature failure of the disc brake. Beijing, china keywords disc brake, squeal, abaqus, ansa abstract squeal analysis of disc brake system continues to be a challenging issue in both industrial and academia due to its complexity and frequent occurrence. Valvano and lee 2000 simulated thermal analysis on a disc brake with a combination of computerbased thermal model and finiteelement febased techniques to provide a reliable method to calculate the temperature rise, thermal stress and distortion under a given brake schedule. A brake is a mechanical device which slowing or stopping a moving object or preventing its motion. Transient thermal and structural analysis of the rotor disc.
A few common configurations of this type of braking are disc brakes, drum brakes and hydrodynamic brakes. Design and analysis of titanium caliper disc brake 1pravin mohan patel 2 sudheendra s. Computer aided design and analysis of disc brake rotors. Linear nonprestressed modal analysis and full nonlinear perturbed modal analysis is applied to. The steady state thermal analysis of two wheeler disc rotor aimed towards the evaluating the braking performance of two wheeler disc brake under braking condition. The consequences of choosing the wrong or lowgrade brake parts can be dramatic.
The standard disc brake two wheelers model using in. Transient thermal and structural analysis of the rotor disc of disk brake is. Present work deals with structural and thermal analysis of disc brake rotor of a vehicle. Thermal and structural analysis of brake disc free download as powerpoint presentation. Squeal analysis of disc brake systemhao xingfeaonline. Circular disc bolted to the wheel hub that spins with the wheel. A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or rotor to create friction. Finite element model a disc brake system consists of a disc that rotates about the axis of a wheel, a calliper piston assembly where the piston slides inside the calliper, that is mounted to the vehicle p. Belhocine, et al effects of youngs modulus on disc brake squeal using finite element analysis figure 1. Disk brake seminar report, ppt, pdf for mechanical. The first analysis is performed on the discpad model without the presence of thermal properties.
A brake is a mechanical device which is used to slowing or stopping a moving object or preventing its motion. This work presents finite element modeling and modal analysis of disc pad assembly using high end software tools. Ansys software, thermal analysis, brake disc, cast iron. For a disc brake, having determined the maximum disc outer diameter and thus the outer radius r o, the inner radius r i of the rubbing path can be determined from the good practice rule of r o r i. By covering a variety of disc and calipers designs, modelling techniques both analytical and numerical finite element and computational fluid dynamics and experimental procedures, this course provides complete insight into the loading, modelling, design and optimisation of a. Feb 07, 2016 thermal analysis of brake disc 2015 1. A brake disc rotor forms pan of a foundation brake and rotates with the wheel hub. This thermal analysis on brake discs is aimed to evaluate the performance of an electric car in the braking. Disc brake model and analysis is done us ing ansys workbench 14. Structural performance of the disc pad model such as deformation and vonmises stress is predicted. Design and analysis of disc brake international journal of. Introduction the disc brake is a wheel brake which slows rotation of the. The pistons push the pads into the rotor to slow or stop your car. Design and analysis of modular caliper assembly a thesis by nikhil pratap wagh bachelor of engineering, shivaji university, 2000.
Jun 01, 20 step by step procedure of how to do steady state thermal analysis of a disc brake fsae in ansys workbench. Working of drum brakes drum brakes work on the same principle as the disc brakes. Introduction the disc brake is a wheel brake which slows rotation of the wheel by the friction caused by pushing brake pads against a brake disc with a set of calipers. This is important to understand action force and friction force on the disc brake new material, how disc brake works more. The disc brake is a wheel brake which slows rotary motion of the wheel by the abrasion caused by close to brake pads against a brake disc with a set of caliper. Upon the analysis of the literature, the authors have found that there are no scienti. Effects of youngs modulus on disc brake squeal using. The temperature resulting from this friction rises high. The brake disc rotation speed should be varied up to 450 rpm representing a bicycle travel speed of approximately 60 kmh. The disc brake is usually made of structural steel, but may in some cases be made of composition such as reinforced carboncarbon. Analysis of disc brake squeal using the finite element method.
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