Machine Design
Clutch Torque Capacity Simulator
Examine transmittable torque and power capacity of friction clutches. Compare the Uniform Wear model (best for run-in/worn clutches) and Uniform Pressure model (best for brand-new components) with real-time pressure mapping.
Theory Mode
Uniform Wear
Design basis
Active Area
251.3 cm²
Per lining face
Max Power
147.5 HP
At 3000 RPM
Parameters
Friction Material Preset
Friction Theory
Animated clamp force sweep
Friction Clutch Models
Uniform Wear (Used)
R_m = (R_o + R_i) / 2
Uniform Pressure (New)
R_m = 2/3 * (R_o^3 - R_i^3) / (R_o^2 - R_i^2)
Torque Capacity
T = n * μ * F * R_m
Max Wear Pressure
p_max = F / (2 * π * R_i * (R_o - R_i))
Uniform Pressure
p = F / (π * (R_o^2 - R_i^2))
Transmittable Power
P = T * (2 * π * N / 60)
For a worn or run-in clutch plate, the Uniform Wear model is more realistic because friction material wears down until wear rate stabilizes.
Uniform Pressure model holds for brand new flat surfaces where deflection is negligible.
Peak pressure currently occurs at R_i (inner radius) under Uniform Wear: 0.249 MPa.
Clutch Face Diagram & Pressure Graph
Torque Capacity
350.0Nm
Mean Radius
100.0mm
Peak Contact Pressure
0.249MPa
Transmittable Power
147.5HP
Torque Capacity vs Clamp Force
Lining Performance Table
| Clamp Force (kN) | Wear Torque (Nm) | Pressure Torque (Nm) | Active Torque (Nm) | Transmittable Power (HP) |
|---|---|---|---|---|
| 0.50 | 35.0 | 35.5 | 35.0 | 14.7 |
| 2.95 | 206.5 | 209.3 | 206.5 | 87.0 |
| 5.40 | 378.0 | 383.0 | 378.0 | 159.2 |
| 7.85 | 549.5 | 556.8 | 549.5 | 231.5 |
| 10.30 | 721.0 | 730.6 | 721.0 | 303.8 |
| 12.75 | 892.5 | 904.4 | 892.5 | 376.0 |
| 15.20 | 1064.0 | 1078.2 | 1064.0 | 448.3 |
| 17.65 | 1235.5 | 1252.0 | 1235.5 | 520.5 |
| 20.10 | 1407.0 | 1425.8 | 1407.0 | 592.8 |
| 22.55 | 1578.5 | 1599.5 | 1578.5 | 665.0 |
| 25.00 | 1750.0 | 1773.3 | 1750.0 | 737.3 |