| { | |
| "engine": "Project Chrono / PyChrono", | |
| "engine_version": "9.0.1", | |
| "experiment": "wheel rolling on a flat surface in a ramp-aligned gravity frame", | |
| "material_density_kg_m3": 7800.0, | |
| "ramp_angle_deg": 15.0, | |
| "gravity_m_s2": 9.81, | |
| "contact_friction": 1.5, | |
| "duration_s": 0.8, | |
| "time_step_s": 0.001, | |
| "initial_x_m": -0.4, | |
| "required_relative_displacement_gain": 0.10, | |
| "maximum_relative_mass_change": 1e-6, | |
| "maximum_outer_diameter_change_mm": 1e-6, | |
| "maximum_rolling_slip_ratio": 0.02 | |
| } | |