International Journal of Recent Innovation in Engineering and Research Scientific Journal Impact Factor - 3.605 by SJIF e- ISSN: 2456 2084 REVIEW ON MAGNETO-RHEOLOGICAL FLUID BRAKING SYSTEM Prof. Prashim Kamble 1, Mr.Gaurav Sawarkar 2,Mr.Karan Tangulwar 3, Mr.Kaustubh Deshpande 4, Mr.Prajot Wadatkar 5, Mr.Prasad Bhagwat 6 and Mr.Shubham Kharwade 7 1 Asst. Professor of Mechanical Engineering Dept., DMIETR, Sawangi,Nagpur university, India 2 3 4 5 6 7 Students of Mechanical Engineering Dept., DMIETR, Sawangi,Nagpur university,india Abstract-Magnetorheological brakes are propelled variant of braking system. Conventional brake shave a few detriments like wearing of plates, warming of parts, high-connected worries amid nonworking time too. The targets of the present review is to give advancements in brakes which having least number of wearing parts and decreasing general size of framework and having lessening in stress level. MR liquid rolls out sensational improvements in their gooey and versatile properties in milliseconds when subjected to attractive field. These properties of MR liquid can be actualized in factor speed diminishing brakes. Diminishment of speed happens because of thickness of MR liquid, which is initiated because of its own organization and change in consistency after use of attractive field. The essential goal is to give attractive field by high power lasting magnets. Variety in attractive field could be accomplished by shifting pivotal separation. Keywords- MR- Magnetorheological, MR liquid, MR brakes, conventional brakes. I. INTRODUCTION Magnetorheological or "MR" liquids are a class of controllable liquid whose rheological properties might be quickly fluctuated by the use of an attractive field. MR liquids are suspensions of micron- Sized, attractively polarizable particles in oil or other fluid. Under ordinary conditions, MR liquid is a free-streaming fluid having a consistency like that of engine oil. Introduction to an attractive field changes the liquid into a plastic-like strong in milliseconds. Evacuation of the Field permits the liquid to come back to its unique. Free-streaming fluid state. The level of progress in a MR liquid relies on upon the size of the connected field. Liquids build up a yield quality that scales with the connected attractive field quality. Steady, powerful, high-quality MR liquids have as of late been produced that give the empowering innovation to understand the advantages of controllable liquids in numerous down to earth, true applications. In this address the fundamental material science, science and rheology of MR liquids will be depicted. Contrasts between MR liquids and other controllable liquids, for example, Electrorheological (ER) liquids and Ferro-liquids will be talked about. Favorable circumstances, restrictions and concerns with respect to the utilization of MR liquids will be tended to including material similarity, gravitational settling, temperature cutoff points, scraped spot and solidness. II. PROBLEM DEFINITION In this advanced world, still we utilize customary stopping mechanism. As we probably are aware by utilizing this, we get less unwavering quality of parts i.e. less life, less productivity, moderate reaction of the brake. In this manner, there is have to make a MR liquid brake as an alternative for ordinary brake. Research is to be made on "Magneto rheological Fluid Brake" in order to utilize this on 4-wheeler. It is the following variant of the MR liquid brakes in future. MR liquid is a fluid, which gives speedy reaction, smooth working means no vibration, and clamor (i.e. it keeps up Noise Pollution), more unwavering quality, simple working and no impact of contaminations @IJRIER-All rights Reserved -2017 Page 55
III. MAGNETORHEOLOGICAL FLUID TECHNOLOGY MRFT remain for Magneto-rheological liquid innovation. The fundamental parts of MRFT are MR liquid and an attractive field to control the thick property of the liquid. The essential rule of MRFT is that little suspended particles having polarizing properties are presented in the base liquid. At the point when an attractive liquid is connected to this liquid, these particles shape a chain adjusted toward the field, which makes an imperviousness to the liquid stream. Coming about, an expansion in the liquid consistency happens. Consequently, within the sight of attractive field the MR liquid proselytes into a semi strong with an expansion in its yield quality. This work wonder takes just milliseconds to happen. IV. MR FLUID COMPONENTS Magneto rheological (MR) liquids are fundamentally non-colloidal suspensions of small scale estimated magnetisable particles in a dormant base liquid alongside a few added substances. Along these lines, there are essentially three parts in a MR liquid. 4.1. Base Liquid 4.2. Metal Particles 4.3. Balancing Out Added Substances. 4.1. BASE LIQUID: The base liquid is an idle or nonmagnetic bearer liquid in which the metal particles are suspended. The base liquid ought to have characteristic grease and damping highlights. For better execution of MRF innovation the base liquid ought to have a low consistency and it ought not change with temperature. This is essential so that MRF impact i.e. variety of thickness because of attractive field gets to be distinctly predominant when contrasted with the normal consistency variety. Because of the nearness of suspended particles, base liquid gets to be distinctly thicker. Ordinarily utilized base liquids are hydrocarbon oils, mineral oils and Silicon oils. 4.2. METAL PARTICLES: For appropriate usage of this innovation, we need such kind of particles, which can charged effortlessly, and rapidly along these lines we utilize metal particles. Metal particles utilized as a part of the MR-innovation are little. Size of the molecule is estimated of the request of 1μm to 7μm. Generally, utilized metal particles are carbonyl iron, powder iron and iron cobalt combinations. Metal particles of these materials have the property to accomplish high attractive immersion because of which they can shape a solid charging chain. The grouping of attractive particles in base liquid can go up to half. 4.3. ADDED SUBSTANCES: It is important to add certain added substances to MR liquid for controlling its properties. These added substances incorporate stabilizers and surfactants. Surfactants serve to diminish the rate of settling of the metal particles. While the elements of added substances are to control the consistency of the liquid, keep up grinding between the metal particles and to diminish the rate of thickening of the liquid because of long haul utilization of the liquid accordingly added substances likewise increment the life of the Liquid. Generally, utilized added substances are ferrous oleate and lithium stearate. All the three parts of a MR liquid characterize its magneto rheological conduct. Changing any one segment will bring about change in the Rheological and magneto rheological properties of the MR liquid. An ideal mix of all the three parts is important to accomplish the alluring properties of a MR liquid. V. WORKING PRINCIPLE OF MR FLUID TECHNOLOGY The MR liquid is a savvy liquid whose properties can be controlled within the sight of attractive field. Without attractive field, the rheological properties of the MR liquid are like that of Available Online at : www.ijrier.com Page 56
base liquid aside from that it is somewhat thicker because of the nearness of metal particles.without attractive field, these metal particles adjust themselves along the heading of stream however when an attractive field is connected every metal particles turns into a dipole adjusting itself along the course of attractive.thus a chain like structure is framed along the line of attractive flux which offers mechanical imperviousness to the stream bringing about an expansion in the consistency of liquid.this mechanical resistance made because of the chain section confers yield quality to the liquid, making it firm like a semi-strong. This firmness and consequently the yield quality relies on upon the quality of the attractive field furthermore the quality and amount of metal particles. Fig1.1: - Alignment of iron particles The MR impact is reversible. At the point when the attractive field is expelled the liquid comes back to its unique condition. The MR liquids with their controllable properties are observed to be helpful in the usage of shrewd liquid idea. Where the smooth movement is controlled by changing its thickness with the assistance of charge. The simplexes of MR liquid innovation, the controllability and the snappy reaction of the rheological properties makes it a savvy liquid with application territories where smooth movement is controlled by shifting the thickness. VI. MR BRAKING SYSTEM The MR brake works in an immediate shear mode, shearing the MR liquid filling the hole between the two surfaces (lodging and rotor) moving as for each other. Rotor is settled to the pole, which is put in orientation and can turn in connection to lodging. Resistance torque in the MR brake relies on upon consistency of the MR liquid. At the point when there is no attractive field the torque is brought about by thickness of bearer fluid, course and seals. Fig1.2: - Basic setup of the proposed MR brake A fundamental design of a MRB was proposed for car applications. a turning plate is encased by a static packaging, and the crevice between the circle and packaging is loaded with the MR liquid. A loop winding is inserted on the border of the packaging and when electrical current is connected to it, attractive fields are produced, and the MR liquid in the hole gets to be distinctly strong like promptly. The shear erosion between the turning circle and the hardened MR liquid gives the required braking torque. In this venture, we propose a MR actuator for the brake in every wheel.on a fundamental level, the brake torque can be controlled by changing the DC current connected to the Available Online at : www.ijrier.com Page 57
electromagnet. Magneto rheological liquid a compound containing fine iron molecule in suspension - hardens within the sight of an attractive field. VII. MRF COMPONENTS Fig1.3: - components of MR fluid REFERENCES [1] Paper by (magnetorheological fluid braking system) Harish Hirani Associate Professor Department of Mechanical Engineering Indian Institute of Technology DELHI. [2] Bhau K. Kumbhar and Satyajit, A Study on Properties and Selection Criteria for Magneto-Rheological (MR) Fluid Components International Journal of ChemTech Research CODEN (USA): IJCRGG ISSN: 0974-4290 Vol.6, No.6,pp 3303-3306, Aug-Sep 2014. [3] Mukund A. Patil, Theoretical Studies on Magnetorheological Fluid Brake IJRMET Vol. 2, Issue 2, May - Oct 2012. [4] Deepak Baranwal, Dr. T.S. Deshmukh MR-Fluid Technology and Its Application- A Review International Journal of Emerging Technology and Advanced Engineering Vol 2, Issue 12, December 2012. [5] SuryawanshiRavishankar and RayappaMahale A study on magneto rheological fluids and their applications International Research Journal of Engineering and Technology (IRJET), Vol. 02 Issue. 04, July-2015. BIOGRAPHIES Prof. PrashimK. Kamble is Asst. Professor in department of Mechanical Engineering. He has Completed M.Tech in Machine Design from YashwantraoChavan College of Engineering (YCCE) and Bachelor s Degree in Mechanical Engineering from Dr. Ambedkar College, Nagpur. He has presented 4 national and international papers. Mr. Gaurav B. Sawarkar is pursuing Bachelor s Degree in Mechanical Engineering (in Final Year) from Nagpur University (R.T.M.N.U). His interests are Automotive Engineering. Available Online at : www.ijrier.com Page 58
Mr. Kaustubh D. Deshpande is pursuing Bachelor s Degree in Mechanical Engineering (in Final Year) from Nagpur University (R.T.M.N.U). He has done mini project on Study and Analysis of Mahatma sugar power plant Jamni, wardha. Mr. Shubham P. Kharwade is pursuing Bachelor s Degree in Mechanical Engineering (in Final Year) from Nagpur University (R.T.M.N.U). His interests are Production and Manufacturing. Mr. Prasad K. Bhagwat is pursuing Bachelor s Degree in Mechanical Engineering ( in Final Year) from Nagpur University (R.T.M.N.U). His interests are design and fabrication. Mr. Karan J. Tangulwar is pursuing Bachelor s Degree in Mechanical Engineering (in Final Year) from Nagpur University (R.T.M.N.U). He has done paper presentation at Amrawati University. Available Online at : www.ijrier.com Page 59