Scooter - Double Side Trailing Link

This suspension consists of double trailing arms, pivoted symmetrically at the bottom end of the steering column. The inline spring damper system is mounted on the trailing arm on either side. The wheel is suspended on the rear end of the trailing arm.
Figure 1. Double Side Trailing Link Suspension with Steering


Model Use

The Double Side Trailing Link Suspension system can be used in front half vehicle or full vehicle models of a two wheeler. The default geometry and mass approximate that of a two wheeler scooter, but the model and data can be revised to reflect any size two wheeler.
Note:
  • The wheel body represents the mass and inertia of the tire and the rim.
  • The wheel hub body represents the mass and inertia of other rotating bodies such as a brake rotor. The wheel hub and brake rotor have no associated graphics.
  • The wheel and wheel hub parts use the Wheel center location as the center of gravity.

The image below shows the Model Browser view of the systems on a fully populated front suspension model. The Double Side Trailing Link Suspension system has six “child” systems.

Figure 2. Browser View of Double Side Trailing Link Suspension


Points

Points locate the joints and bushings that connect the suspension bodies to one another. The image below shows the principal points for the Double Side Trailing Link Suspension.
Figure 3. Right Side Principal Points – Double Side Trailing Link Suspension


Note: The image above is from the right side of the vehicle.

Bodies

The Double Side Trailing Link Suspension is comprised of the bodies shown in the image below:
Figure 4. Right Side Bodies – Double Side Trailing Link Suspension


Joints

The table below describes the joints for a Double Side Trailing Link Suspension:
Label Type Body 1 Body 2 Point Notes
Steering Swingarm Attachment Joint Revolute Swing Arm Steering Column Swingarm steering Att Point
Swingarm Spindle Att Joint Fixed Spindle Swing Arm Front Wheel CG
Spindle to Wheel Revolute Front Wheel Spindle Front Wheel CG
Steering REV Joint Revolute Handle Frame Steering Axis Top
Handle Fixed Handle Steering Column Steering Axis Top
The following image shows the location of the joints in the suspension:
Figure 5. Joints - Double Side Trailing Link Suspension