CHAPTER 1.
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 .
- Serve a dual purpose – contributing to the vehicle's handling and braking.
- Protects the vehicle itself and any cargo or luggage from damage and wear .
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Purpose of Suspension System
- Supports the weight.
- Provides a smooth ride.
- Allows rapid cornering without extreme body roll.
- Keeps tires in firm contact with the road.
- Isolate passenger and cargo from vibration and shock
- Allows front wheels to turn side-to-side for steering.
- Works with the steering system to keep the wheels in correct alignment
Suspension System Basic Parts
- Ball Joints : Ball joints are spherical bearings that connect the control arms to the steering knuckles, and are used on virtually every automobile made. They bionically resemble the ball-and-socket joints found in most tetrapod animals.
- Shock absorbers or dampeners : A shock absorber or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting the kinetic energy of the shock into another form of energy (typically heat) which is then dissipated. Most shock absorbers are a form of dashpot (a damper which resists motion via viscous friction).
- Control arm bushing : sleeves that allows the control arm to swing up and down on the frame
- Springs: supports the weight of the vehicle; permits the control arm and Wheel to move up and down
Types of Suspension
- Dependent suspension:- It has both right and left wheel attached to the same solid axle. When one wheel hits a bump in the road, its upward movement causes a slight tilt of the other wheel.
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- Independent suspension:- Independent suspension is a broad term for any automobile suspension system that allows each wheel on the same axle to move vertically independently of each other
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