suspension system in automobiles
TRANSCRIPT
Suspension system in automobiles
Presented by-Indranil Biswas
3rd year Automobile EngineeringMalda Polytechnic, Malda
WHAT IS SUSPENSION SYSTEM Suspension is the term given to the system of
springs, shock absorbers and linkages that connects a vehicle to its wheels.
Protects the vehicle itself and passengers & cargo from damage and wear. Ensures riding comfort.
Serves a dual purpose – contributing to the car's handling and braking.
FUNCTION To prevent the road shocks from being
transmitted to the vehicle frame. To preserve the stability of the vehicle in
pitching or rolling. To safeguard the occupants from road
shocks. To provide good road holding while driving,
cornering and braking.
ELEMENTS OF SUSPENSION SYSTEM Spring It absorbs road shocks or impacts
due to bumps & potholes in road by oscillating. Tyres also provide spring effect , but to a smaller extent.
Damper It reduces the tendency of the carriage unit to continue to bounce up and down on its springs. Oscillation due to road shocks are restricted to a reasonable level by damper.
TYPES OF SPRINGS Leaf spring Coil spring Torsion bars Air and gas spring
LEAF SPRING A leaf spring is a simple type of suspension
spring commonly used in heavy duty vehicles. The advantages of leaf spring over helical
spring is that the ends of the spring be guided along a definite path as it deflects to act as a structural member in addition to energy absorbing device.
COIL SPRING Length of spring-steel rod wound into a
spiral. Most common type of springs used on both
front and rear suspension. Coils cushion and absorb the shocks and
bumps.
TORSION BARS It resists twisting action and acts like a
conventional spring. One end is attached to the frame and the
other to the lower control arm. Up and down of the suspension system
twists the torsion bar. Then it will try to return to its original
shape, moving the control arm to its original place.
TORSION BARS
AIR AND GAS SPRINGS Rubber cylinder filled with air. Air pressure in the rubber cylinder gives
the unit of spring action. Special rubber compounds are used so the
air spring can operate properly in cold weather.
TYPES OF SUSPENSION SYSTEMS Conventional suspension system Independent suspension system Air suspension system Hydrolastic suspension system
TYPES OF SUSPENSION SYSTEMS Conventional Suspension System:-
It has both right and left wheel attached to the same solid axle. When one wheel heats a bump in the road, its upward movement causes a slight tilt of the other wheel.
Independent Suspension System:- It allows one wheel to move up and down
with minimal effect to the other.
TYPES OF SUSPENSION SYSTEMS Air Suspension System:-
It used in place of conventional steel springs in passenger cars, and heavy vehicle applications such as buses and trucks.
Hydrolastic Suspension System:- The system replaces the separate springs and
dampers of a conventional suspension system which are interconnected between the front and rear wheels on each side of the vehicle.
CONCLUSION From the whole discussion in suspension system,
it is observed that suspension system provides the energy to a vehicle to protect itself from damaging, increasing life of the vehicle, handing and comfort of passengers and many more.
So, if the suspension system is removed, then ride in an Audi or Mercedes will feel like a bull-cart ride. But the only difference is speed. So, the scope of suspension system is too bright.
THANK YOU
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