Motorcycle Telescopic - Classic: Rigid and Deformable Strut Rod

The suspension has a primary barrel tube and a slider tube is placed inside it, providing free movement to the later one. It is laden with a spring and fork oil inside to give the shock absorption facility. With telescopic suspension, the slider is connected to the yoke of the handle while the barrel tube or damping unit is laden on to the wheel. This ends up with the entire weight of the shock system on to the wheel which makes the movement of the wheel and the handle a lot stiffer.

Rigid

Bodies (slider and fork tube) are rigid entities constrained by a translational joint to allow the sliding action and a revolute joint to facilitate steering.

Figure 1.

Deformable

The strut rod is a flexible member constrained by a PTCV joint. This modeling approach allows the rod to bend/flex thereby introducing compliance in the fork assembly.