Disc brake seminar ppt with pdf report study mafia. 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. For these important and innovative features, the new cx disc has been patented both for design and working principle. The most familiar forms of energy in automotive use are. Disc brakes system principle the disc brake system works based on pascals law which states that pressure exerted anywhere in a contained incompressible fluid is distributed equally in all direction throughout the fluid. Residual check valves are not used in disc brake systems.
If the brake is mechanical then cable adjustment and pad alignment are critical. When the brake lever or pedal is released the piston ring pushes the caliper piston back to cylinder bore of caliper till both, caliper piston and piston ring come. How brakes work disc brakes, drum brakes and abs kwik fit. Drum brakes work on the same principle as disc brakes. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. The brake pads pushing against the rotors generate friction, which transforms kinetic energy into. The wheel of the vehicle is bolted to the wheel hub. Braking force f b is the tangential friction force acting between the brake pads and disc.
You did not say if your disc was hydraulic or mechanical. Hydraulic brakes work on the principle of pascals law which states that pressure at a point in a fluid is equal in all directions in space. This is because the disc brake rotor contacts the calipers during braking. Disc brakes have evolved over time to be a reliable method of decelerating and stopping a vehicle. Drum brakes work on the same principle as the disc brakes. Lets begin with the brake pedal and master cylinder. A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or. When working on a brake system, always keep in mind that a brake system failure. This can be accomplished by installation of a brake caliper with larger diameter pistons or with a brake caliper with multiple pistons. The model 95c series eskridge brake is a spring applied, hydraulically released, multiple disc parking brake. Gritt 14 1062002 14 typical power discdrum system here is an overview of a typical passenger car brake system. The basic principle used in braking systems is to convert the kinetic. Disc brake construction, working principle, types and. It is the type of brake that uses callipers to squeeze pairs of pads against a disc to create friction.
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. What is disc brake, what are its types and how it works. Each single system has been studied and developed in order to meet safety requirement. Multiple disc brakes spring apply, hydraulic release mico engineers are innovators in the design of spring apply, hydraulic release multiple disc brakes, wheel brakes, closedoutput motor brakes, positorque winch brakes and more. It makes contact with the rotor disc and due to the friction between the brake pad and rotor disc the vehicle speed reduces and it stops. National call centre this fully computerised call centre handles all customer service. Disk brake part 4 working principle, advantages and. Remove cutting chips, dust, burrs and other foreign substances from the rotor to be measured.
The brake pedal the power brake booster the master cylinder the hydraulic control valve the hydraulic lines the front disc brakes. Brake disc area examine brake discs for grooves and tears. Third is installation of a brake disc with a larger effective brake radius. Principle of sew brakes 3 sew brake systems in detail drive engineering practical implementation sew disk brakes 11 3.
In disc brake systems, the cylinders are part of the calipers. The ability if a braking system to provide safe, repeatable stopping is the key to safe motoring. Hydromechanical control of a selfenergising hydraulic brake dipl. The harder the driver pushes on the pedal, the greater the pressure inside the brake lines will be, and the harder the pads. The brake disc or rotor in american english is usually made of cast iron, but may in some cases be made of composites such as reinforced carboncarbon or. The term power hydraulic brakes can also refer to systems operating on very different principles where. Thanks to this system, the disc is able to increase more than 40% the resistance to problems due to thermal shock. Jun 10, 2014 the calipers are connected to the hydraulic system, and hold the brake pads to the rotor 11. International journal of engineering trends and technology. Force pressure x area small piston less force more travel large piston more force less travel 200 lbs force 2,000 lbs force 10 inch travel 1 inch travel. This movement causes brake pads to stick with brake disc which creates friction and stops the brake discrotor to rotate. Dec 03, 2010 this movement causes brake pads to stick with brake disc which creates friction and stops the brake disc rotor to rotate.
This residual pressure is retained to flair the lip of the cup seal in the wheel cylinder to prevent leakage andor air ingestion into the brake system. Brake operating principles 2 square inch 20 square inch pascals law states that pressure is equally applied to all areas within a closed hydraulic system. The calipers are connected to the hydraulic system, and hold the brake pads to the rotor 11. Conclusions using carbon ceramic matrix disc brake material calculating normal force, shear force and piston force and also calculating the brake distance of disc brake. Introduction to gray cast iron brake rotor metallurgy pdf. Caliper types there are 2 types of calipers fixed floating 12. Mar 04, 2015 disc brake seminar and ppt with pdf report. Disc brakes are a brake system that slows a wheels rotation by squeezing an attached metal disc in a viselike hydraulic caliper. Elements of disc brake there are major four elements of brake disc 1. Later, disc brakes were used for the front and drum brakes for the rear. If the disc brake rotor becomes worn down to a thickness of 1.
The disc rotor is a casting, usually equipped with cooling fins between the two braking surfaces. Brake operating principles linnbenton community college. Automobile disc brakes use the identical principle but apply the braking effort to a separate disc instead of the wheel. Pressure tracking control for a selfenergizing hydraulic. A clear understanding of the brake system is essential for anyone involved in servicing vehicles. A disk brake works on the principle of pascals law principle of transmission of fluid pressure. The main function of the brake master cylinder is to provide adequate brake system hydraulic pressure typically between 400 psi and 600 psi for a modern disc brake type system. Temperature, wear, and contamination of the friction surfaces will affect the per for mance of the brake and should be taken into consideration when specifying a required torque rating. There are several factors at work when using a hydraulic disc brake. At least one cylinder in each caliper is used to force the brake pads against the disc. Todays vehicle braking systems involve many different components working together to help you to stop and manoeuvre your vehicle in a controlled manner. 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. You, as the mechanic, are trusted to do every service and repair operation correctly. The engineers are committed to improving the product while reducing cost.
In this article, we will learn all about this type of disc brake design. Drg60592 rs232 computer interface cable optional drg60593 fitted case 1. Figure 2 cad model of disc brake disc brake is an important component of vehicle retardation system. This specification can be found in the manufacturers manual for each vehicle. Brake caliper is the end part of effort transmission in brakes which retards the motion of two wheeler 3. The energy of motion is converted into waste heat which must be dispersed hydraulically actuated disc brakes are the most commonly. Contd brake pedal or lever a pushrod a master cylinder assembly containing a piston assembly reinforced hydraulic lines brake calliper assembly usually consisting of one or two hollow aluminium or chromeplated steel pistons called calliper pistons, a set of thermally conductive brake pads and a rotor also called a brake disc or drum. If you want to keep this bike get a professional to give you the lowdown on its condition or things will get worse. Simple resolution to your problem,take your bike to a bike shop and pay for a service. Working of drum brakes drum brakes work on the same principle as the disc brakes. That friction slows the rotation of a shaft vehicle axle to hold it stationary or slow its rotational speed. The most common type of disc brake on modern cars is the singlepiston floating caliper.
Disk brake design equations and calculator engineers edge. Overview the brake system is the most important system on a vehicle from a safety standpoint. The working principle of the electromagnetic brake is based on an electric retarder. Tsb 4309 is the standard for australian assembled disc brake axles to suit 20 tyres. Design and analysis of disc brake complete project report pdf free download abstract. This way disk brake system stops or slows down the vehicle. When the driver presses the pedal, a piston inside the brake master cylinder pressurizes hydraulic fluid in the brake lines, which moves the pistons and pushes the pads into the rotor. 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. This electric retarded works on the creation of eddy currents. The basic principle of brake operation id the conversion of energy. Pdf disc brakes have evolved over time to be a reliable method of.
This page contains disc brake seminar and ppt with pdf report. If the disc brake rotor cracks or changes shape, please cease to use immediately and consult a dealer or an agency. Disc brakes are a brake system that slowly a wheels rotation by force an attached element disk in a viselike hydraulic caliper. G, design and analysis of disc brake rotor for a two wheeler, international journal of mechanical and industrial technology, vol. Pascals law developed by french mathematician blaise pascal states that pressure exerted anywhere in a confined incompressible fluid is transmitted equally in all directions throughout the fluid such that the pressure ratio initial difference remains same.
Numerical analysis of a brake disc in the beginning of the analysis the brake disc is simplified. Unlike conventional brakes, where the brake calliper is. Understand the hydraulic and mechanical principles of a brake system. Drum brake also has an adjuster mechanism, an emergency brake mechanism and lots of springs. A hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically. Hose is for transmission of oil from master cylinder to brake caliper 4.
Most modern cars have disc brakes on the front wheels, and some have disc brakes on all four wheels. Chemical energy in the battery is converted to electrical energy in the starter. A disc brake is comprised of a handlebar mounted lever, a. The brakes or the system of braking mechanism which are operated and applied by liquid or oil pressure from controlling mechanism to braking mechanism in order to slow down or completely stop the vehicle is known as hydraulic brakes. The key components of your vehicle braking system include a master cylinder, servo, brake callipers, brake fluid and cylinders, disks, drums, pads and shoes. This is the part of the brake system that does the actual work of stopping the car. When working on a brake system, always keep in mind that a brake system failure could result in a fatal vehicle. There are several factors at work when using a hydraulic disc. Disc brakes use the same principle as bicycle handbrakes, but on a bike the brake pads press against the wheel itself. Disk brake seminar report, ppt, pdf for mechanical.
The shoes are pulled away from the drum by the springs when the brakes are released. Fixed caliper fixed calipers are disc brakes that use a caliper that is fixed in position and does not slide. The brake calliper is connected to the drivers brake pedal by the normally open tv valve. On a car, the disc is part of the hub to which the wheel is mounted. History the modern automobile drum brake was invented in 1902 by louis renault, though a lesssophisticated drum brake had been used by maybach a year earlier. A drum brake is a brake in which the friction is caused by a set of shoes or pads that press against the inner surface of a rotating drum. The most important safety feature of an automobile is its brake system. Hydromechanical control of a selfenergising hydraulic brake. A layout of the proposed braking system is shown in figure 4. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary.
But the disc inner diameter does not match with the outer diameter of the drum. Sehb working principle the operation of the valves shall be described by a braking process. The disc rotor is attached to the wheel hub and it rotates with it. Download design and analysis of disc brake complete project report. For example starting an engine involves several conversions. 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. Computer aided design and analysis of disc brake rotors. There have been different designs of disc brake systems for different applications. Disc brake construction, working principle, types and rotor materials brake rotors of disc brakes rotate with the wheels, and brake pads, which are fitted to the brake calipers, clamp on these rotors to stop or decelerate the wheels. In drum brake systems, each wheel cylinder contains two pistons, one at either end, which push outward in opposite directions and force the brake shoe into contact with the drum. Explore disk brake with free download of seminar report and ppt in pdf and doc format. Bpw tsb disc brake sizes axle code date range axle type brake size rotor diameter skh10108 from january 2011 1012 tonne eco plus tsb 3709 suit 19.
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