These braking systems are described in working of prototype model. Braking system uses magnetic force to engage the brake, but the power required for braking is transmitted. Design of the regenerative shock absorber is done on software. In this paper the basic of magnetic braking are introduced. The linear magnetic brakes come in two configurations.
When the plate enters the magnetic field, an electric field is. This develops a magnetic field around it and the rotating armature gets attracted towards the coil. This opposing torque is used to brake the automobiles. Innovative electro magnetic braking system ijirset. How eddy current braking technology is freeing us from. Electromagnetic braking system ppt in pdf for presentation. Eddy current braking experiment using brake disc from. It plays an important role in the evolution of binary star systems. Eddy current brake works according to faradays law of electromagnetic induction. Magnetic braking system mechanical and automobile ieee project topics, thermal engineering base paper ideas, synopsis, abstract, report, figures, full pdf, working details for mechanical engineering me, diploma, btech, be, mtech and msc college students. The verification shows the predicted magnetic flux is within 5% difference with the measured value. Electromagnets with variable magnetism strength can also be used to control the movement.
Eddy currents and magnetic braking of a pendulum duration. The working of electromagnetic braking is similar to that of a disc brake, except that it uses magnetic forces to actuate braking. Therefore, the magnetic flux density computed by the developed fem model can be applied during the design stage of magnetic braking systems. Electro magnetic breaking system free download as powerpoint presentation. Finding the effective length over which the eddy currents form scott b. If you attach a metal plate to the end of a pendulum and let it swing, its speed will greatly decrease when it passes between the poles of a magnet. A frictionless braking system tends to increase life span and reliability of brakes since absence of friction leads to less wearing of brakes. A free powerpoint ppt presentation displayed as a flash slide show on id.
Electromagnetic braking system magnetic braking system. According to this law, whenever a conductor cuts magnetic. An eddy current brake, also known as an induction brake, electric brake or electric retarder, is a. Seminar on electromagnetic clutch free pdf report download a clutch is a mechanism for transmitting rotation, which can be engaged and disengaged. The electromagnetic braking system are also called electromechanically brake. The electromagnetic brakes can be used in commercial vehicles by controlling the current supplied to produce the magnetic flux. Magnetic braking system seminar reportpdfppt download. The antilock braking system is designed to maintain vehicle control, directional stability and optimum deceleration under severe braking conditions on most road surfaces.
The eddy current brake is unusable at low speeds, but can be used at high speeds both for emergency braking and for regular braking. Electric and magnetic field simulation for solidworks and. Ppt regenerative braking powerpoint presentation free to. Since 1987, numerous articles about magnetic braking were published. Among other works carried out 5, design of a magnetic braking system was proposed to design the braking systems to improve the shortcomings of the conventional braking systems. Introduction an antilock braking system abs is a safety system on motor vehicles which prevents the wheels from locking while braking. For brakes evaluation, mbs offers dynamometers with an output up to 30 horsepower. The first attempt of making a braking system using electro magnets was done by thomas a. Firstly, a simple theory is proposed using faradays law and the lorentz force. Clutches are useful in devices that have two rotating shafts. Hardware and software 8051 microcontroller reading the braking level from. Mar 06, 2019 the two magnetic fields repel each other and a braking force results meaning the train will come to a frictionless stop.
Magnetic braking works because of induced currents and lenzs law. Super magnetic braking system automobile project topics. Braking loss is considered as the loss of kinetic energy into. Popular physics lecture demonstrations related to the magnetic brake are that of a magnet falling inside a cylindrical conductor, e. When the driver steps on the brake pedal, current is passed through the electromagnet windings, creating a. Apr 10, 2016 report on electromagnetic breaking system 1. Ems electric and magnetic field simulation software for solidworks and autodesk inventor user to calculates the electromagnetic field, magnetic field, electric field, magnetic flux, magnetic force and torque, eddy current, electric stress, dielectric and voltage breakdown, eddy and core losses. Mbs designs and manufactures magnetic brakes to customer specifications. Braking system should ensure the safety and comfort of the passenger, driver and. Eddy current brakes ppt free download seminar topics. To solve these problems, a contactless magnetic brake has been developed. Magnetic abrasive finishingmaf seminar reportpdf ppt download magnetic abrasive finishing maf is a process in which a mixture of nonferromagnetic abrasives and ferromagnetic iron particles is used to do particles in the mixture are magnetically energized using a magnetic field.
Pdf in this paper we had develop the electromagnetic braking system. Magnetic braking, fem of electromagnetic braking, mathematical modeling of electromagnetic braking i. Eddy current brakes ppt free download seminarsonly. The two magnetic fields repel each other and a braking force results meaning the train will come to a frictionless stop. Zero friction electromagnetic braking system project nevonprojects. The eddy current brake does not have any mechanical contact with the rail, and thus no wear, and creates no noise or odor. Future to highly produced accident to use this braking system to avoid the accidents. Ppt regenerative braking powerpoint presentation free.
An electromagnetic braking system used magnetic force while applied the. Frictionless magnetic brakes hysteresis magnetic brake. This tends to increase the life span and reliability of brakes since no friction leads to less wearing out of brakes. Download document synopsis for zero friction electromagnetic braking system mechanical project with design and fabrication details. Systems ranging from application specific to testing a broad. In contrast to conventional friction brakes, there is no direct contact between interacting surfaces, which makes magnetic. Even brakes with a braking power exceeding 10,000 watts do not pose a problem. Jan 08, 2015 this principle is used to make the friction less braking. Conventional braking systems convert kinetic energy into heat, usually via friction.
The number of alternating magnetic fields in the circumference of the drag ring will be equal to the number of poles in the stators of the brake. Rather than being a step by step procedure to make a certain object or complete a project, this instructable documents a series of projects used to complete a minor scientific investigation. The single sided brake is a lower cost solution but has open exposed permanent magnets. Seminar on electromagnetic clutch free pdf report download. Get more information about eddy current brakes ppt free download by visiting this link. In contrast to conventional friction brakes, there is no direct contact between interacting surfaces, which makes magnetic braking more reliable and reduces wear and tear. Here we shows the demonstration of the frictionless braking system mechanical project, where, it shows the coppers surprising reaction to strong magnets. Magnetic abrasive finishingmaf seminar reportpdfppt download.
Braking systems can be custom designed to have whatever exit velocity is desired, all the way down to almost zero speed. Zero friction electromagnetic braking system project. An electromagnetic braking system uses magnetic force to. These articles describe both experiments dealing with magnetic braking, as well as the theory behind the phenomenon. The overuse of frictiontype braking systems causes the temperature of the braking pads to rise, reducing the effectiveness of the system. Delivery time for custom brakes can be within 90 days of order. Electricity is applied to the coil at the time of braking. The resulting eddy currents interact with the magnetic flux to produce lorentz forces and subsequently a. The annual event has attracted more than 8,000 product design ideas from engineers, entrepreneurs, and students worldwide. This principle is used to make the friction less braking. The electromagnetic braking using eddy current was studied, focused on two series of aluminium as the brake disc which are a16061 and a17075.
Static magnetic field analysis is carried out at an equilibrium position and the results are plotted. The create the future design contest was launched in 2002 by the publishers of nasa tech briefs magazine to help stimulate and reward engineering innovation. Electromagnetic braking system used electromagnets to provide a contact less braking system thus reducing brake. Magnetic braking system seminar reportpdf ppt download abstract. Effects of rotor material on eddy current brake performance. Manufacturer of frictionless magnetic brakes, dynamometers and web tension control systems. Super magnetic braking system automobile ieee project topics, design and analysis, thermal engineering base paper ideas, synopsis, abstract, report, figures, full pdf, fabrication, working details for automobile engineering, diploma, btech, be, mtech and msc college students. Magnetic abrasive finishingmaf seminar reportpdfppt download magnetic abrasive finishing maf is a process in which a mixture of nonferromagnetic abrasives and ferromagnetic iron particles is used to do particles in the mixture are magnetically energized using a magnetic field. As a result the inner and outer friction plates placed between the armature and the coil gets squeezed, which develops a torque and eventually the vehicle comes to rest. Magnetic braking system seminar reportpdfppt download abstract. In order to accomplish this study and prove the applicability of the system it was designed, simulated and produced an electromagnetic braking system for a prototype vehicle of smaller size. Scribd is the worlds largest social reading and publishing site.
Magnetic abrasive finishingmaf seminar reportpdfppt. I wanted to understand how electromagnets could be used. Electromagnetic braking means applying brakes using electronic and magnetic power. Seminar on eddy current brake report pdf download abstract this is an electric braking system which works on the principle that eddy current produced in it opposes the driving torque. Eddy current is the swirling current produced in a conductor, which is subjected to a change in magnetic field. Major qualifying project final report magnetic braking. This magnetic braking system is found to be more reliable as compared to other braking systems. When it moves past the stationary magnet, the magnet exerts a drag force on the metal which opposes its motion, due to circular electric currents called eddy currents induced in the metal by the. Electromagnetic braking system magnetic braking system project latest project 2020. In these devices, one shaft is typically driven by motor or pulley, and other shaft drives another device. Here we use the principle of electromagnetism to achieve friction less braking. Designing and testing an electromagnetic braking system. The model was designed with the help of catia v5 software for better visual understanding.
An electromagnetic braking system uses magnetic force to engage the brake, but the power required for braking is transmitted manually. This paper presents the comparison for both series in a few varied parameters related to eddy current braking such as airgap, number of turns and brake disc thickness. Magnetic braking system sevvel p1, nirmal kannan v2, mars mukesh s3 an electromagnetic braking system uses magnetic force to engage the brake, but the power required for braking is transmitted manually. This task was accomplished by intuitive thinking, many hours of. Advantages of this type of frictionless braking include being finely controlled, relatively inexpensive, and free of pollution and noise.
From a project point of view, it is better to integrate a magnetic system on a disc brake instead of doing everything from scratch. A combination of hysteresis and eddy current braking providing precise and frictionless braking. The expert system technologies are integrated with digital maps along with the ccd camera images, magnetic compass, and the gps system, for obtaining a real time intelligent. Magnetic braking can also find applications in roller coasters and railroad trains, in which the metallic conductor has the shape of a linear rail. Magnetic brake comsol multiphysics modeling software. Edison and he got the patent for that back in october, 1881. The shoes are pulled away from the drum by the springs when the brakes are released.
In this paper, an ecb system is offered and different rotor materials are investigated with respect to generated braking torque. Electrical brakes electric brakes are actuator devices that use an electrical current or magnetic actuating force to slow or stop the motion of a rotating vehicle. This paper presents the comparison for both series in a few varied parameters related to eddy current braking such as. The topic of magnetic braking has dramatically increased in popularity in recent years. Drum brake also has an adjuster mechanism, an emergency brake mechanism and lots of springs. In an eddy current brake the magnetic field may be created by a permanent magnet or an electromagnet, so the. Jun 30, 20 the create the future design contest was launched in 2002 by the publishers of nasa tech briefs magazine to help stimulate and reward engineering innovation. The resulting eddy currents interact with the magnetic flux to produce lorentz forces and subsequently a braking torque. This means that the majority of the braking system would last forever due to the nonmaterial loss by forever i mean that the system will most likely outlast the vehicle and parts like.
Mainly this system is purely based on faradays laws of electromagnetic induction and lenzs law. Electromagnetic brake for carbike create the future. Magnetic brakes are noncontact brakes that use magnetic fields to actuate the braking components. Working of drum brakes drum brakes work on the same principle as the disc brakes. Static magnetic analysis magnetic field analysis was carried out to confirm with the analytical calculations and to optimize the solution. A magnetic brake consists of a permanent magnet, which induces currents in a rotating copper disk.
An eddy current brake consists of a conductive piece of metal, either a straight bar or a disk, which moves through the magnetic field of a magnet, either a permanent magnet or an electromagnet. Mbs provides testing services from obtaining basic speed vs torque curves to testing per ieee standards for motors ranging in fractional hp to hundreds of horse power. In addition, by using these magnetic brakes the life of the braking unit can be increased. Hughes physics department, the college of wooster, wooster, ohio 44691 may 5, 2000 this experiment uses a square copper plate attached to a cart which moves along a track underneath a magnet. It is caused by alternating magnetic fields of residual magnetism in the brakes drag ring when the current is removed while the drag ring remains stationary.