Static Roll Analysis
A quasi-static simulation during which a rolling movement is applied to the suspension and various parameters are calculated.
Required input
- Tire static loaded radius (mm)
- Tire vertical spring rate (N/mm)
- Vehicle CG height (mm)
- Wheel base (mm)
- Front braking ratio
- Front drive ratio
- Axle ratio
- Vehicle weight (N)
- Initial wheel position to begin rolling (mm)
- Roll displacement magnitude (mm)
Task Description
The suspension is moved to the initial wheel position. This is followed by a left and right rolling movement during which displacements of equal magnitude in the opposite direction is applied.
Output
Reports containing some plots, tabular results, and graphical animation are automatically created.
- Wheel Center Displacement
- mm
- Ground Reaction Force
- N
- Toe-in
- deg
- Steer Angle
- deg
- Camber Angle
- deg
- Roll Angle
- deg
- Tread Width
- mm
- Tread Change
- mm/m
- Track Width
- mm
- Wheel Center X Stiffness
- N/mm
- Wheel Center Y Stiffness
- N/mm
- Wheel Center Z Stiffness
- N/mm
- Wheel Center XX Stiffness
- N-m/deg
- Wheel Center YY Stiffness
- N-m/deg
- Wheel Center ZZ Stiffness
- N-m/deg
- Parallel Lateral Force Deflection
- mm/kN
- Converging Lateral Force Deflection
- mm/kN
- Parallel Lateral Force Steer
- deg/kN
- Converging Lateral Force Steer
- deg/kN
- Parallel Lateral Force Camber
- deg/kN
- Converging Lateral Force Camber
- deg/kN
- Parallel Aligning Torque Steer
- deg/100N-m
- Converging Aligning Torque Steer
- deg/100N-m
- Longitudinal Force Deflection @ Wheel center
- mm/kN
- Longitudinal Force Deflection @ Tire patch
- mm/kN
- Longitudinal Compliance Steer @ Wheel center
- deg/kN
- Longitudinal Compliance Steer @ Tire patch
- deg/kN
- Longitudinal Caster Compliance @ Wheel center
- deg/kN
- Longitudinal Caster Compliance @ Tire patch
- deg/kN
- Side View Swing Arm Length
- mm
- Side View Swing Arm Angle
- deg
- Side View Swing Arm Fore/Aft Location
- mm
- Side View Swing Arm Vertical Location
- mm
- Front View Swing Arm Length
- mm
- Front View Swing Arm Angle
- deg
- Front View Swing Arm Lateral Location
- mm
- Front View Swing Arm Vertical Location
- mm
- Ride Steer
- deg/m
- Ride Camber
- deg/m
- Roll Steer
- %
- Roll Camber
- %
- Roll Inclination
- %
- Wheel Rate
- N/mm
- Ride Rate
- N/mm
- Hop Rate
- N/mm
- Suspension Roll Rate
- N-m/deg
- Total Roll Rate
- N-m/deg
- Tramp Rate
- N-m/deg
- Roll Center Height
- mm
- Roll Center Lateral
- mm
- Anti-lift
- %
- Acceleration Lift
- mm/g
- Anti-dive
- %
- Brake Dive
- mm/g
- Tractive Force Steer
- deg/g
- Tractive Force Windup
- deg/g
- Brake Steer
- deg/g