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Front suspension systems support the wheels in the front with the help of strut rods.
Scooter - Double Side Leading Link

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MotionView is a general pre-processor for Multibody Dynamics.
- MotionView Overview
  MotionView is a general pre-processor for Multibody Dynamics.
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        The vehicle library is installed as a part of the normal MotionView installation.
      - Front Suspension Systems
        Front suspension systems support the wheels in the front with the help of strut rods.
        Motorcycle Telescopic - Rigid and Deformable Strut Rod (Classic)
        Motorcycle Telescopic - Rigid and Deformable Strut Rod (Inverted)
        Scooter - Single Side Trailing Link
        Scooter - Double Side Trailing Link
        Scooter - Double Side Leading Link
        Scooter - Front Telescopic Fork (Classic)
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Scooter - Double Side Leading Link

This suspension consists of double leading arms, pivoted symmetrically at the bottom end of the steering column. The wheel spindle is connected to the front end of the leading arm. The inline spring damper systems are also mounted at the front end of the leading arm on either side.

Figure 1. Double Side Leading Link Suspension with Steering

Model Use

The Double Side Leading 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 Leading Link Suspension system had six “child” systems.

Figure 2. Browser View of Front Leading Link Double Swing Arm 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 Leading Link Suspension.

Figure 3. Right Side Principal Points – Double Side Leading Link Suspension

Note: The image above omits the left side of the suspension, points locating body centers of mass, and points that locate the optional subsystems (springs, dampers, bump stops and stabilizer bar) for clarity.

Bodies

The Double Side Leading Link Suspension is comprised of the bodies shown in the image below:

Figure 4. Right Side Bodies – Double Side Leading Link Suspension

Joints

The table below describes joints for a Double Side Leading 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 Leading Link Suspension