Motorcycle Telescopic - Inverted: Rigid and Deformable Strut Rod

In Upside down, as the name suggests, the suspension is fitted in a completely opposite direction. This means the handle yoke is connected to the barrel unit while the sliders are connected to the wheel of the bike. Compared to the regular telescopic fork, this system is stiffer as the tube is larger in diameter at the top to react the bending moments.

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.

Figure 2.