Shock Absorber
By
Jaswanth G
Shock Absorber
•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.
Classification of shock absorber
❖ Based on Operation
➢ Single Tube
➢ Multi tube
❖ Based on Construction
➢ Mono Tube
➢ Twin Tube
❖ Based on Working Medium
➢ Hydraulic
➢ Gas filled
Twin Tube Shock absorber
➔ Also known as a "two-tube" shock absorber, this device consists
of two nested cylindrical tubes, an inner tube that is called the
"working tube" or the "pressure tube", and an outer tube called
the "reserve tube".
➔ At the bottom of the device on the inside is a compression valve
or base valve.
➔ When the piston is forced up or down by bumps in the road,
hydraulic fluid moves between different chambers via small
holes or "orifices" in the piston and via the valve, converting the
"shock" energy into heat which must then be dissipated.
Difference between Mono tube and Twin tube
Mono-Tube Twin Tube
Mono Tube Shock Absorber
• The shell case itself works
as a cylinder and oil, gas,
piston valve, etc are all set
inside that single tube.
• Mono-tube uses a free
piston that completely
separates the oil chamber
from the gas chamber.
Twin Tube Shock Absorber
• There is a separate
cylinder set inside the
shell case and the piston
valve moves up and down
within the inner cylinder.
• While for twin-tube,
nothing separates the oil
and gas chambers within
the shell case.
Shock Absorber.pptx

Shock Absorber.pptx

  • 1.
  • 2.
    Shock Absorber •A shockabsorber 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.
  • 3.
    Classification of shockabsorber ❖ Based on Operation ➢ Single Tube ➢ Multi tube ❖ Based on Construction ➢ Mono Tube ➢ Twin Tube ❖ Based on Working Medium ➢ Hydraulic ➢ Gas filled
  • 4.
    Twin Tube Shockabsorber ➔ Also known as a "two-tube" shock absorber, this device consists of two nested cylindrical tubes, an inner tube that is called the "working tube" or the "pressure tube", and an outer tube called the "reserve tube". ➔ At the bottom of the device on the inside is a compression valve or base valve. ➔ When the piston is forced up or down by bumps in the road, hydraulic fluid moves between different chambers via small holes or "orifices" in the piston and via the valve, converting the "shock" energy into heat which must then be dissipated.
  • 5.
    Difference between Monotube and Twin tube Mono-Tube Twin Tube
  • 6.
    Mono Tube ShockAbsorber • The shell case itself works as a cylinder and oil, gas, piston valve, etc are all set inside that single tube. • Mono-tube uses a free piston that completely separates the oil chamber from the gas chamber. Twin Tube Shock Absorber • There is a separate cylinder set inside the shell case and the piston valve moves up and down within the inner cylinder. • While for twin-tube, nothing separates the oil and gas chambers within the shell case.