Vehicle Dynamics
Browser-based tools for rapid trade studies of ride response, shock/impact events, and coupled cargo dynamics. Designed for early-stage insight and sensitivity analysis—not full multi-body vehicle modeling. Make sure your browser supports WebGL/Three.js by going to https://get.webgl.org.
Tip: If you plan to run many cases, use Full screen inside each module. Documentation PDFs include theory, assumptions, and references.
Ride response
Vehicle Ride Quality
Vertical ride dynamics trade studies: compare body acceleration, suspension travel, and response time histories.
Adjust mass/geometry and spring/damper parameters
Road disturbance definition and speed
Outputs: accelerations and time histories
Coupled cargo
Vehicle Ride + Untethered Cargo
Ride response with a cargo mass that can move/impact: evaluate interaction effects, peak loads, and stability.
Vehicle vertical response plus cargo dynamics
Contact/impact assumptions (as implemented)
Outputs: relative motion, peaks, time histories
Impact / obstruction
Vehicle Obstruction Impact
Transient event modeling for hitting an obstacle: estimate peak accelerations, loads, and sensitivity to compliance/damping.
Obstacle geometry and event conditions
Compliance/damping assumptions (as implemented)
Outputs: peaks and time response
Quick selection
Which module should I use?
Ride Quality: suspension and comfort trade studies from road inputs
Ride + Untethered Box: cargo interaction, relative motion, impacts
Impact to Obstruction: short-duration shock/impact event sensitivity
For safety-critical decisions, validate results independently (detailed simulation, test, or professional review).
Methods, limitations, and responsibility Read once
These modules implement physics-based, low-order models for rapid engineering insight. They prioritize speed and transparency over high-fidelity multi-body simulation. Assumptions and equations are documented in the PDFs and within the modules. Users are responsible for verifying applicability and results for their specific use case.
Questions: contact@xl4sim.com · See Terms