HI I AM DINESH ,I AM VERY EAGER TO KNOW ABOUT MAGNETIC SHOCK ABSORBER. IT HELPS ME TO DO PROJECT WORK

MAGNETIC SHOCK ABSORBER
In a vehicle shock absorber based on a rough travel effects, as an energy store in the spring and then released to the vehicle, possibly suspension movement [allow limit reduces the shock absorber to the vehicle without a bouncing ride 1]. Shock absorption control of excessive suspension movement without stiffer springs gives a harsh ride, which will require the apprentice. [2] in response to the suspension bumps control the rate of movement, shock absorber allows the use of soft springs. In this project a new suspension system magnetic power which can be used in automobiles in the future is based on. Suspension system magnets independently their own poles facing each other with cylinder are moving inside. Since magnetic poles repel each other while moving around, up and down spring action is obtained

Abstract
In a vehicle, shock absorber reduces the effect of travelling over rough ground, without shock absorber the vehicle would have a bouncing ride, as an energy is stored in the spring and then released to the vehicle, possibly exceeding the allow range of suspension movement [1]. Control of excessive suspension movement without shock absorption requires stiffer springs, which would intern gives a harsh ride. Shock absorber allows the use of soft springs while controlling the rate of suspension movement in response to bumps [2]. In this project a new suspension system based on magnetic power which can be used in automobile in future. The suspension system consists of magnets freely moving inside the cylinder with their same poles facing each other. Since the magnetic poles repel each other while moving closer, the up and down spring action is obtained

MAGNETIC SHOCK ABSORBER
In a vehicle shock absorber based on a rough travel effects, as an energy store in the spring and then released to the vehicle, possibly suspension movement [allow limit reduces the shock absorber to the vehicle without a bouncing ride 1]. Shock absorption control of excessive suspension movement without stiffer springs gives a harsh ride, which will require the apprentice. [2] in response to the suspension bumps control the rate of movement, shock absorber allows the use of soft springs. In this project a new suspension system magnetic power which can be used in automobiles in the future is based on. Suspension system magnets independently their own poles facing each other with cylinder are moving inside. Since magnetic poles repel each other while moving around, up and down spring action is obtained

THE IDEA FOR A MAGNETIC SHOCK ABSORBER (FOR AUTOMOBILES AND TWO-WHEELERS), MAKES USE OF THE MAGNETIC REPULSION BETWEEN DIPOLES TO ACHIEVE SHOCK ABSORPTION. OFTEN WHEN RIDING ON HER TWO-WHEELER WE USED TO FACE SOME PROBLEMS WHILE MOVING ON THE BUMPY ROAD DUE TO ITS UNEVENNESS.
IT OBSERVED THAT THE LIKE POLES OF TWO MAGNETS OF THE SAME PROPERTIES AND STRENGTH REPULSE EACH OTHER AND THEY KEEP A CONSTANT DISTANCE BETWEEN EACH OTHER BECAUSE OF THEIR MAGNETIC FIELDS. THIS MADE HER THINK THAT IF THE SHOCK ABSORBERS ARE MADE OF MAGNETS WITH SIMILAR POLES FACING EACH OTHER, IT MAY GIVE BETTER PERFORMANCE AND NO MAINTENANCE WOULD BE REQUIRED FOR THE SAME.
THE UNIT COMPRISES OF TWO CIRCULAR MAGNETS AND A ROD (STRAIGHT CYLINDRICAL ROD WHICH CAN BE USED AS AXLE). ONE MAGNET IS ATTACHED AT THE BOTTOM OF THE ROD AND IS THE BASE MAGNET. THE OTHER MAGNET IS FREE, WITH A FLOAT AND HAS THE SIMILAR POLE PLACED TOWARDS THE BASE MAGNET. THE SIMILARITY OF POLES CREATES REPULSION AND A CERTAIN DISTANCE IS MAINTAINED. AS PER LOAD CONDITION, THE FLOATING MAGNET MOVES AND CLOSES THE GAP UNTIL THE MAGNETIC REPULSION IS STRONG ENOUGH TO CREATE THE DAMPING ACTION. IN THIS MANNER A SHOCK ABSORBER WITHOUT SPRINGS WORKING ON THE BASIC LAW OF MAGNETS -OPPOSITE POLES ATTRACT AND SIMILAR POLES REPEL- IS PREPARED.
ADVANTAGES

THIS SHOCK ABSORBER WILL ERADICATE THE PROBLEMS FACED IN THE SPRING SHOCK ABSORBERS DUE TO FRICTION AND OTHER FACTORS. THIS WILL ALSO REDUCE THE MAINTENANCE COSTS AS IT DOES NOT NEED REPAIRING, CHANGING OF SPRINGS OR DEALING WITH LEAKAGE PROBLEMS AS IN SPRING OR OIL SHOCK ABSORBERS. THIS MAGNETIC SHOCK ABSORBER CAN BE USED IN VEHICLES CARRYING HEAVY OR LESS LOAD. IMPROVING ON HER CONCEPT SHE SAYS THAT TO MAKE THESE MAGNETIC SHOCK ABSORBERS EVEN BETTER, A CHAIN OF MORE THAN TWO MAGNETS CAN BE USED TO TOLERATE THE SHOCKS OR WEIGHT AND MAKE THE VEHICLE MORE COMFORTABLE.


SHOCK ABSORBERS

A SHOCK ABSORBER IN COMMON PARLANCE (OR DAMPER IN TECHNICAL USE) IS A MECHANICAL DEVICE DESIGNED TO SMOOTH OUT OR DAMP SUDDEN SHOCK IMPULSE AND DISSIPATE KINETIC ENERGY. IT IS ANALOGOUS TO A RESISTOR IN AN ELECTRIC RLC CIRCUIT.
SHOCK ABSORBERS MUST ABSORB OR DISSIPATE ENERGY. ONE DESIGN CONSIDERATION, WHEN DESIGNING OR CHOOSING A SHOCK ABSORBER IS WHERE THAT ENERGY WILL GO. IN MOST DASHPOTS, ENERGY IS CONVERTED TO HEAT INSIDE THE VISCOUS FLUID. IN HYDRAULIC CYLINDERS, THE HYDRAULIC FLUID WILL HEAT UP. IN AIR CYLINDERS, THE HOT AIR IS USUALLY EXHAUSTED TO THE ATMOSPHERE. IN OTHER TYPES OF DASHPOTS, SUCH AS ELECTROMAGNETIC ONES, THE DISSIPATED ENERGY CAN BE STORED AND USED LATER.
SHOCK ABSORBERS ARE AN IMPORTANT PART OF AUTOMOBILE AND MOTORCYCLE SUSPENSIONS, AIRCRAFT LANDING GEAR, AND THE SUPPORTS FOR MANY INDUSTRIAL MACHINES. LARGE SHOCK ABSORBERS HAVE ALSO BEEN USED IN STRUCTURAL ENGINEERING TO REDUCE THE SUSCEPTIBILITY OF STRUCTURES TO EARTHQUAKE DAMAGE AND RESONANCE.
SHOCK ABSORBERS, LINEAR DAMPERS, AND DASHPOTS ARE DEVICES DESIGNED TO PROVIDE ABSORPTION OF SHOCK AND SMOOTH DECELERATION IN LINEAR MOTION APPLICATIONS. THEY MAY BE MECHANICAL (E.G., ELASTOMERIC OR COIL SPRING) OR RELY ON A FLUID (GAS, AIR, HYDRAULIC), WHICH ABSORBS SHOCK BY ALLOWING CONTROLLED FLOW FROM OUTER TO INNER CHAMBER OF A CYLINDER DURING PISTON ACTUATION. IN CONVENTIONAL SHOCK ABSORBERS THE PISTON ROD IS TYPICALLY RETURNED TO THE UNLOADED POSITION WITH A SPRING. SHOCK ABSORBERS TYPICALLY CONTAIN EITHER A FLUID OR MECHANICAL DAMPENING SYSTEM AND A RETURN MECHANISM TO THE UNENGAGED POSITION. THEY VARY FROM SMALL DEVICE APPLICATION TO LARGE INDUSTRIAL AND CIVIL ENGINEERING USES. LINEAR DAMPERS IS AN INCLUSIVE TERM THAT CAN BE APPLIED TO MANY FORMS OF DASHPOTS AND SHOCK ABSORBERS; TYPICALLY USED FOR DEVICES DESIGNED PRIMARILY FOR RECIPROCATING MOTION ATTENUATION RATHER THAN ABSORPTION OF LARGE SHOCK LOADS. DASHPOTS ARE TYPICALLY DISTINCT IN THAT WHILE THEY USE CONTROLLED FLUID FLOW TO DAMPEN AND DECELERATE MOTION, THEY DO NOT NECESSARILY INCORPORATE AN INTEGRAL RETURN MECHANISM SUCH AS A SPRING. DASHPOTS ARE OFTEN RELATIVELY SMALL, PRECISE DEVICES USED FOR APPLICATIONS SUCH AS INSTRUMENTATION AND PRECISION MANUFACTURING.

SHOCK ABSORBERS OR DAMPER TYPES FOR SHOCK ABSORBERS, LINEAR DAMPERS AND DASHPOTS CAN BE HYDRAULIC, AIR, GAS SPRING, OR ELASTOMERIC. THE ABSORPTION OR DAMPING ACTION CAN BE COMPRESSION OR EXTENSION. IMPORTANT PARAMETERS TO CONSIDER WHEN SEARCHING FOR SHOCK ABSORBERS, LINEAR DAMPERS AND DASHPOTS INCLUDE ABSORBER STROKE, COMPRESSED LENGTH, EXTENDED LENGTH, MAXIMUM FORCE (P1), AND MAXIMUM CYCLES PER MINUTE. ABSORBER OR SPRING STROKE IS DIFFERENCE BETWEEN FULLY EXTENDED AND FULLY COMPRESSED POSITION. COMPRESSED LENGTH IS THE MINIMUM LENGTH OF SHOCK (COMPRESSED POSITION). EXTENDED LENGTH IS THE MAXIMUM LENGTH OF SHOCK (EXTENDED POSITION). THE MAXIMUM RATED FORCE FOR SHOCK ABSORBER OR DAMPER, REFERRED TO AS THE P1 FORCE. THE MAXIMUM CYCLES PER MINUTE ARE THE RATED FREQUENCY OF COMPRESSION/EXTENSION CYCLES.

IMPORTANT PHYSICAL SPECIFICATIONS TO CONSIDER WHEN SEARCHING SHOCK ABSORBERS, LINEAR DAMPERS AND DASHPOTS INCLUDE THE CYLINDER DIAMETER OR MAXIMUM WIDTH, THE ROD DIAMETER, MOUNTING, AND BODY MATERIAL. THE CYLINDER DIAMETER OR MAXIMUM WIDTH REFERS TO THE DESIRED DIAMETER OF HOUSING CYLINDER. THE ROD DIAMETER REFERS TO THE DESIRED DIAMETER OF EXTENDING ROD. MOUNTING CHOICES INCLUDE BALL AND SOCKET, ROD END, CLEVIS, EYELET, TAPERED END, THREADED, AND BUMPER OR ROD END UNATTACHED. CHOICES FOR BODY MATERIALS INCLUDE ALUMINUM, STEEL, STAINLESS STEEL, AND THERMOPLASTIC. COMMON FEATURES FOR SHOCK ABSORBERS, LINEAR DAMPERS AND DASHPOTS INCLUDE ADJUSTABLE CONFIGURATION, REDUCIBLE, LOCKING, AND VALVE. AN ADJUSTABLE CONFIGURATION ALLOWS THE USER TO FINE TUNE DESIRED DAMPING, EITHER CONTINUOUSLY OR AT DISCRETE SETTINGS. A REDUCIBLE SHOCK ABSORBER, LINEAR DAMPER OR DASHPOT HAS AN ADJUSTMENT STYLE FOR GAS SHOCKS IN WHICH GAS IS LET OUT TO PERMANENTLY REDUCE FORCE CAPACITY. IN A LOCKING CONFIGURATION THE POSITION CAN BE LOCKED AT ENDS OR IN THE MIDDLE OF STROKE. VALVES CAN BE INCLUDED FOR FLUID ABSORBERS, A VALVE OR PORT, WHICH CAN BE USED TO INCREASE OR DECREASE FLUID VOLUME OR PRESSURE.