Suspension Construction
Presentation
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Instructional Technology
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9th - 12th Grade
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Practice Problem
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Medium
Brandon Spiller
Used 43+ times
FREE Resource
37 Slides • 7 Questions
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Suspension Construction
Auto Theory
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Review from last meeting...
Frame
Shock Absorber
Spring
Control Arm
Control Arm Bushing
Ball Joint
Steering Knuckle
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Suspension System Construction
Now that we have seen the parts lets look at them with more detail.
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Control Arms
Holds the steering knuckle, bearing support, or axle housing in position as the wheel moves up and down.
One end is connected to the steering knuckle via Ball Joint, and the other end is connected to the Frame via Control Arm Bushings.
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Multiple Choice
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Control Arm Bushings
- 2 Per Control Arm
- Act as a bearing/pivot point for the control arm
- Stiffness can be changed to change driving feel
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The ball joint connects the control arm to the steering knuckle.
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Poll
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Ball Joints
Short for Ball and Socket Joint
Contected the control arm to allow for limted rotation off the steering knuckle.
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The ball joint is very similar to our shoulder joints
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Steering Knuckle
Found on the front suspension system
Connection point for brakes, wheel bearing, tie rods, control arms, and struts
We will go into more detail on the knuckle later and in steering systems
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Here is a custom suspension system with all the parts connected.
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Multiple Choice
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Shock Absorbers
Shock Absorbers are connected to each wheel
They are used to limit the ocsicallations from the spring to smooth the ride.
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Why we need shock absorbers.
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Multiple Choice
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Here you can see the good shock absorb the spring occilations keeping the wheel steadier
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How a shock absorber works...
Gas pressurized fluid is transferred inside of tube
Fluid movement is controlled in the shock to slow the movement of the spring
Shocks can get very complex and there are several differant types
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Shock absorber!
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A strut is structural to the suspension system and contains the shock and spring.
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Multiple Choice
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The Stabilizer Bar (Sway Bar)
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Multiple Choice
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Stabilizer Bar (Sway Bar)
Connects to both lower control arms and to the frame.
Rubber bushings connect it to the control arms. These link are called Sway Bar Links
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Sway Bar Link Connection
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To wrap up this lesson today lets look a couple front suspension system types.
MacPherson Strut Suspension
Short Arm Long Arm (SLA) Suspension (Double Wishbone)
Torsion Bar Suspension
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MacPherson Strut Suspension...
Most common type of front suspension system.
Cheap to produce. Less parts and simplicity
Features a MacPherson Strut
Only one Lower Control Arm
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Short Arm Long Arm (SLA or Double Wishbone)
What is the difference?
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Open Ended
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SLA Suspension...
Two control arms (Upper and Lower)
Upper Control Arm Shorter
Lower Control Arm Longer (SLA)
Has better geometry compared to MacPherson
Keeps the wheel straight during compression and rebound.
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F1 Suspension
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Torsion Bar Suspension
Very Similar to SLA
Uses a Torsion Bar instead of coil spring
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Torsion Bar Suspension
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Use the rest of this time to make up missing work.
Suspension Construction
Auto Theory
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