C3 Specialized Kinematics

Rear Trailing-Arm Corner Visualizer

Full 3D one-DOF analysis for the lower link, halfshaft, rigid upright, added upper link, trailing arm, and rear spring link. Travel input is the vertical displacement of WC, with the local upright X-axis treated as the wheel axis.

Solver

Full 3D Constraint Solve

The solve uses a rigid upright pose in 3D, fixed lower and upper link lengths, a trailing arm constrained by the chassis-side X-axis pivot, a rear spring member whose inner pickup rotates about Z, and wheel-center vertical travel.

Use rear spring constraint

Geometry

mm coordinates

Wheel

wireframe tire

Tire diameter Tire width

Travel & Limits

WC vertical travel

Travel min Travel max Steps Animation speed Allowable halfshaft ΔL Animation profile Road roughness

Display

viewer controls

Show paths / loci Show link lengths and labels Show upright triad Show diff center Mirror opposite side visually Static geometry only Auto-start animation

Actions

compute & export

Orbit: left drag. Pan: right drag / Shift + drag. Zoom: wheel. Numpad `1/3/7` for axis views, `Ctrl` to flip, `5` to toggle ortho/perspective.

Validity

Summary Metrics

Engineering Plots

Halfshaft Length

Halfshaft Change

Camber

Link Angles

Caster

Toe

Side View Angle

Track Width

Solve Status

Constrained Motion