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SISTEM SUSPENSI
Teknik Kendaraan Ringan
Semester 3 th Class XI
Kompetensi Kejuruan
SK-KD 14TH
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DIAGRAM ALUR PENCAPAIAN KOMPETENSI
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SISTEM SUSPENSI
VIBRATIONS and quality of driving
In the subject of vibration and quality of driving a car, there
are terms:
Sprung weight: Weight ditumpu car by the spring suspension
Unsprung weight: Weight axle and parts - Other parts are
located
Between the wheels - wheels and springs
Note:
Sprung weight the greater the better quality of driving
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GETARAN GETARAN PADA AUTOMOBIL
~ Pitching: Vibration resulting front and rear end of car
moving around the center of gravity of the vehicle (car)
~ Rolling: swinging movement laterally
~ Bounching: Movement up and down
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SPRING ( PEGAS )
LEAF SPRINGFunction
To connect the frame to the axle and also
to cushion the shock absorber caused by
road surface
Spring constant
Nature of the materials change shape when
a load, and back into shape when the load
is released. The event is called the
elasticity
The amount of deflection is proportional to
the force exerted.
Comparison between the force exerted by
the deflection is called "spring constant"
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COIL SPRING
Long steel rod rolled.Compared with leaf springs, coil spring is longer so as
to have a better resistance to shock, there is no friction
when there deflexi, so as to provide better comfort.
Coil spring does not have the shock absorbing
properties, is sufficient and can not guarantee its axis.
Spring constant
If the forces acting = W
The amount of deflection = A
High free = L
So spring constant = W / A
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HELPER SPRING
Helper spring is paired with an additional spring above the main spring on the truck
in heavy transport vehicles.Helper spring working together - together with the main spring, when the vehicle got
a load on the number of specifications
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HOLLOW SPRING
Spring Hollow is a hollow piece of
rubber in the middle and bolted to
the top of the axle, control arm or
in part, located above the frame.
When the hole closed and the air
trapped in the hole serves as a
springSpring Hollow is generally used
as an additional spring to protect
the frame from the impact of the
spring
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AIR SUSPENSION
Containing air bellows attached to the place where the leaf springs are usually
placed screw or spring, to ensure heavy vehicles. Action produced by the elasticity
of the absorption of air compression within the bellows and additional air space.
Violence springs are subject to change - change in accordance with the load
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SUSPENSI MODEL RIGID DENGAN PEGAS DAUN
In the rigid model of the wheel suspension - wheels mounted on one axis and attached
to the body through the spring
Advantages:
~ Construction of simple and powerful
~ Changes tread or chamber caused by a small axle movementDisadvantages:
~ Quality tabilitas wheel drive and less
~ Tendency occurs horizontal movement
JENIS JENIS SUSPENSI
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SUSPENSI MODEL RIGID DENGAN PEGAS ULIR
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SUSPENSI MODEL INDEPENDENT
In the model of independent suspension, left and right wheels are not attached to a
single axis, but on each - each axle, so that the work alone - alone in absorbing the
shock. Called "knee action"Advantages:
Better ride qualityTangent ability is a better way (rod holding)Disadvantages:
Construction complex
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MACAM MACAM SUSPENSI INDEPENDENT
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MODEL WISHBONE DENGAN PEGAS COIL
onstruction:Upper Arm, Lower Arm, Knuckle form a rectangle with a coil spring and shock
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TORSION SPRING
Stabilizer
Torsion spring
Lower control arm
Upper control arm
When a steel rod, tied one end firmly on the rod is at rest, the other end tied to the arm, butwhen the arm moves down and up, then this steel rod of movement will tend to resist this.
Thus arose the absorption effects such as a spring leaf (leaf spring) or a screw spring (coil
spring)
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MACHPERSON SUSPENSION
Suspension machperson model has no upper arm,
so the simple construction and does not need
tuning "FRONT WHEEL alignment" unless "TOE
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SHOCK ABSORBER
The function of the spring is to prevent collisions received by the wheels of thevehicle body be forwarded to
But without a vehicle shock absorbers to be a bad way.
Shock absorber serves to absorb excess elasticity of the spring which tends to
swing - swing.
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PRINSIP KERJA SHOCK ABSORBER
Single action Double action
direct-acting type
In the shock absorbers to shrink, the piston inside the cylinder slides and encourage
existing oil under the piston, the oil will move upwards through the orifice, with the
prisoners on the elasticity of the spring orifice restrained. And vice versa.
Orifice
Orifice
Piston
Piston
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CARA KERJA SHOCK ABSORBER
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JENIS DUCARBON
This type of shock absorber contains high pressure
gas which has properties very stable silencer.
Benefits of ducarbon
Good heat radiation due to a single tube
Hydraulic shock does not occur when there ischange in motion
No hissing sound occurs when the oil flows
via a valve (orifice)
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STABILIZER
Function:
To prevent vehicles flying at the time of inflection.
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STRUT BAR
Function:
To support the lower arm so as not to move forward and
backward at the time the vehicle running
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SUSPENSI BELAKANG MODEL RIGID DENGAN
PEGAS DAUN
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SUSPENSI BELAKANG MODEL RIGID DENGAN
PEGAS ULIR
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SUSPENSI BELAKANG JENIS INDEPENDENT
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BIBLIOGRAPHY:
Step 1 Chasis and Power Train, Toyota Astra Motor
Step 2 Chasis and Power Train, Toyota Astra Motor
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Presented by Didin Saepudin
SMK Negeri 1 Magelang
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