Structural performance of the discpad model such as deformation and vonmises stress is predicted. It can absorb water from air, that is why we should avoid opening the cars brake fluid reservoir and the container of the brake fluid should be tightly sealed. Design and analysis of vented disc brake rotor research india. Hence best suitable design is suggested based on the performance and strength criteria. Below i mentioned the generally used braking systems in automobile. Every vehicle has its own braking system to stop that vehicle. Brake system design requirements types brake pads composition brake pad materials brake discs conclusions composites in automotive applications. To slow or stop the car, these two flat shoes are forced tightly against the rotating disk, or rotor. 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. Pdf this paper presents optimized design of performance of disc brake using finite element analysis is to evaluate the performance under. International journal of mechanical engineering and. Can a brake clutch be designed with a higher torque. In india, most of the motorcycles have a disc brake on the front wheel and a drum brake on. Evaluation of the brake performance is thus based on the magnitude of the torque it can generate to resist the rotors motion and maximum backdrivability.
A tooth brake clutch typically has 25 times more torque capacity for a given size than any other style of brake clutch. In this research work design of a disc brake is proposed with copper liner on its brake disc, the heat transfer of existing and hybrid disc will be. In this paper carbon ceramic matrix disc brake material use for calculating normal force, shear. Therefore, it is must for all vehicles to have proper brake system. The following work studies a conceptual design of a disc brake system. Although there are some fourwheel systems, usually discs are mounted on the front wheels, and conventional drum units are retained at the rear. Ball ramp brakes have a self servoing effect rather like a drum brake. In the new perimetric brake system, the braking torque is directly transmitted from the brake disc to the outer rim of the wheel and finally to the tyres. High factor brakes become very sensitive to manufacturing tolerances and lining friction variations. It generates less heat compare to drum brake for the same brake torque.
When the brake is applied, fluid is forced into the master cylinder and pushes the pistons in the caliper. The basic master cylinder is modified and the fluid reservoir is removed. Pdf design, analysis and manufacturing of disc brake rotor. If brake disc are in solid body the heat transfer rate is low 46. Chakraborty, department of mechanical engineering, iit kharagpur. Ease of maintenance as disk brake is outside the wheel rim.
When you press the brake lever, the brake oil pushes the piston causing the brake pads to contract and rub against the disc. Disk brake design equations and calculator engineers edge. The first analysis is performed on the discpad model without the presence of thermal properties. Figure 3 temperature distribution of a full and ventilated disc of cast iron 2. Hose is for transmission of oil from master cylinder to brake caliper 4. Brake caliper is the end part of effort transmission in brakes which retards the motion of two wheeler 3. We cover the designing of the disk brake construction. Disk brake requires less effort brake torque to stop the vehicle compare to drum brake.
Pdf finite element analysis of automotive disk brake and. Bidari 1post graduate student, department of mechanical engineering, mmec belgaum, karnataka, india 2,3professor, department of mechanical engineering, mmec belgaum, karnataka, india abstractthe main function of brake system is to decelerate. There are many books on brake systems but if you need to find a formula for something in particular, you never can. Aug, 2008 lecture series on design of machine elements i by prof. Distance from the cg to the centre of rear and front wheel 3. A tooth brakeclutch typically has 25 times more torque capacity for a given size than any other style of brakeclutch. The objective of this work is to compare temperature distribution. Mar 04, 2015 disc brake seminar and ppt with pdf report.
Sliding friction kinetic friction is the rubbing action of one object sliding on the surface of another, such as a brake disk on a brake pad or a brake drum on a brake lining. Braking system design also needs to confirm that neither. 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. Sameer ingale, sanket kothawade, aditya patankar and rohit kulkarni, design and analysis of a brake caliper. Keywords braking system, thermal analysis, disc brake, finite. The main purpose of this study is to analysis the thermomechanical behaviour of the brake disc during the braking phase. Break capacity depend upon unit pressure between the breaking surfaces, the coefficient of friction and ability of the brake to dissipate heat equivalent to energy absorbed. This pushes the face of the brake pad towards the surface of. Vidyaa vikas college of engineering affliated to anna university chennai 600 025 abstract the disc brake is a device for slowing or stopping the rotation of a wheel.
Apr 24, 2016 main design criteria for disk brakes are 1. A layout of the proposed braking system is shown in figure 4. Objective the objective is to design a disc brake using solidworks 12. During braking, hydraulic fluid is delivered to the wheel cylinder which forces the brake shoes to move away from each other. This project report will contain the design of a disc brake rotor, and analyze results of structural and thermal analysis at a later stage. 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 system 3 2 types of brakes a the drumshoe brakes b the discpad brakes. The connections are such that the left front and the right rear brake are on one circuit and. The case of thermoelasticity on the same model with the. 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. It contains hydraulic pistons that are connected to a series of hoses that supply the brake fluid. Disc brakes, originally developed for aircraft, are ubiquitous, in spite of their higher cost, because of their fade resistance. Eddy current brake design for operation with extreme back. Thus, a zero torque together with a minimum inertia when the brake is off is required.
The design or capacity of a brake depends upon the following factors. Weight distribution to the rear and front part of the vehicle. It absorbs energy from the moving part and slows down the vehicle with the help of friction. Which style of brakeclutch will have the highest torquetosize ratio. Each half has a 2 inchdiameter round pad on each side of the disk. Typically service brakes are concerned with dynamic coefficient of friction, or the coefficient of friction measured while the vehicle is moving. 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. Design and optimization of perimetric disc brake rotor. The braking system is one of the most important safety systems in a vehicle. Brake disc area examine brake discs for grooves and tears. In the single piston design such as in twowheelers, the brake pads are actuated by a single piston, which is attached to the brake caliper. The objective is to design a disc brake using solidworks 12. Disk brake design equations 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. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users.
If brake disc are in solid body, the area of contact between disc and pads are more. Disc brake seminar ppt with pdf report study mafia. Fluid pressure from the master cylinder forces the pistons to move in. Pdf design and analysis of disc brake rotor researchgate. It has a flat shoe, or pad, located on each side of the disk. Design aspects has been taken from frontal disc brake assembly of tvs apache rtr 180 motorcycle and cad modelling of the petal disc brake rotor has been done in catia v5 r21. The purpose of brake disk dimensioning and design is to confirm that a bike can be stopped safely under any possible driving conditions. Sep 25, 2019 the brake drum is equivalent to the brake rotor on a disk brake system. Disk brake seminar report, ppt, pdf for mechanical. The design of brake rotor is concerned with developing a disc, capable of withstanding braking torque, high clamping force, high wear and extreme temperature. Engineering inspiration brake system design calculations.
Dont worry about brake drag, it takes roughly 75 psi for the shoes to overcome the return springs and make contact with the drum. Design optimization of disk brake rotor akshay naikwadi1,prof. The purpose of this work is to present a study of the thermomechanical behavior of the automotive disc brake during the braking phase. Lecture series on design of machine elements i by prof. What is disc brake, what are its types and how it works. Which style of brake clutch will have the highest torquetosize ratio. Design and analysis of modular brake caliper assembly i have examined the final copy of this thesis for form and content and recommend that it to be accepted in partial fulfillment of the requirements for the degree of master of science, with a major in mechanical engineering. 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. The paper also explains a validation method for any designed braking system using a brake performance triangle. A measure of sensitivity is the amount the brake factor varies for a change in lining friction. Brake caliper, braking system, analysis cite this article. Disc brakes offer higher performance braking, simpler design, lighter weight, and better. The conventional brake system depends on the principle of friction for operation.
Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Based on the design configurations, vehicle friction brakes can be grouped into drum and disc brakes. Disc brake design problem from ch 18 a disk brake similar to the one shown, uses a double caliper. Prior to brake lockup, the magnitude of the braking forces is a direct function of the torque produced by the wheel brake. In the new perimetric brake system, the braking torque is directly transmitted from the brakedisc to the outer rim of the wheel and finally to the tyres. The equations needed to design a braking system are not difficult to derive but this page is a reference to most of them. G, design and analysis of disc brake rotor for a two wheeler, international journal of mechanical and industrial technology, vol.
First it keeps the shoes close to the drum so you dont have as much travel. Looking for downloadable 3d printing models, designs, and cad files. It is absolutely essential in preventing accidental vehicle damage, personal injury and loss of life. Brake calculations there are many books on brake systems but if you need to find a formula for something in particular, you never can. Design and analysis of disc brake and caliper of four wheeler. Material selection method in design of automotive brake disc. This page contains disc brake seminar and ppt with pdf report. Disc brakes are a brake system that slowly a wheels rotation by force an attached element disk in a viselike hydraulic caliper.
The paper presents methodology of design, various considerations made during design and the logic behind them. Design and analysis of ventilated disc brake iosr journal. The validation of design is done via calculations as well as finite element analysis of model of brake disc. It causes stresses and deformation which is indicated by its appearance, cracks on the disc 2. Rudolf lamperts brake design and safety second edition in temperature analysis 3. The ability of the braking system is to bring the vehicle to the safe controlled stop. Design for custom mounting and spacecost saving integrations are very common. Disctype rotors are extremely efficient in terms of heat.
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