Vehicle Ride Quality

Trade studies for vertical ride response. Adjust mass/geometry and suspension/tire parameters and compare time acceleration histories.

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Details (inputs, outputs, assumptions) Read once

Inputs

Best use: make sure your browser supports WebGL/Three.js by going to https://get.webgl.org
Geometry / masses: chassis and cab/cargo dimensions and weights
Wheels / suspension: axle locations and front and rear suspension K and C values
Tires: effective vertical stiffness
Road: road feature profile and vehicle speed
Helpful hint: the model and results can be saved to a JSON file for future use

Outputs

Accelerations: ride severity proxy
Initial Conditions: the initial accelerations are from a small vehicle drop to initiate the solution
Acceleration Data: acceleration versus time at each of the 4 chassis corners, total vehicle CG and one user defined location
Time histories: compare cases for dynamic responses
Visualization: animated dynamic response

Assumptions

Simplified vertical dynamics
Linearized elements
Use for sensitivity and early-stage decision making

Examples

Vehicle ride example animation

Example time response visualization.

Vehicle ride schematic

Model schematic / road input example.

Disclaimer & Support

Preliminary estimates only. Verify independently for critical applications. See Terms.
Questions: contact@xl4sim.com