Car Shocks Absorber

What is Shock Absorber?
Is a mechanical device designed to smooth out or dampen shocks impulse and energy, that must absorb or dissipate energy.

A pneumatic and hydraulic shocks absorbers commonly take the form of a cylinder with a sliding piston inside. the cylinder is filled with fluids it can be hydraulic fluid or air.

Dashpot is a fluid filled piston or cylinder.

What is the purpose of Shock Absorber?

• It reduces the effect of traveling over rough ground, leading to smooth ride and quality comfortability. without shocks the vehicle would have bounce. As the energy is stored in the spring and then the released to the to the shocks, possible exceeding the allowed range of suspension movement.
  

• A suspension with excessive movement with out shock absorber must have higher rate of springs which in turning give a harsh ride.

• A Shock Absorber allows the use of soft (Lower Rate spring) while controlling the rate of suspension movement in response to dumps.

• Hysteresis in the tires itself, damp the motion of the unsprung weight up and down on the springiness of the tire, Since the tire are not as soft as the spring wheel bounce damping mat required stiffer shocks.

• Spring based Shock Absorber commonly use coil spring or leaf spring, though torsion bars can be used in torsional shocks as well.

Types of Shocks Absorber Approach?

• Hysteresis
• Dry friction
• Solid state
• Fluid friction
• Compression of Gas
  
• Magnetic effects
• Composite hydro pneumatic
  
• Conventional shocks
  

Hysteresis
Is like memory of the material if you press down rubber disk they will return to thier normal uncompressed states

Dry Friction
It is used in wheel breaks by using the disk

Solid states
Tapered chain shock absorber using one or more tapered alignment of granular spheres

Fluid friction
Used in hydraulics principles, an advantage of this shocks is that using special internal valving the absorber may be made relatively soft to compression allowing to soft response to a dump and relatively stiff to extension, controlling. Which is the vehicle response to energy stored in the spring.

Compression of Gas
A shock absorber which cab act like springs as the air pressure is building to resist the force on it. When air pressure reach maximum air the air dashpots will act like an hydraulic dashpots.

Magnetic effects
Dampers are dashpots that are constructed out of a large magnet inside of non magnetic, electrically conductive tube.

Composite hydro pneumatic
A combine in a single device spring action, shocks absorbs and often also ride height control.

Conventional shocks
Combined with composite pneumatic spring with which allow ride height adjustment or even ride height control, it improves handling and reduce aerodynamic drag by lowering the vehicle.


Types of Shocks

• GAS Shocks
• Liquid Shocks