Vehicle Dynamics and Simulation
CAE 300 Series Motion Base
The CAE 300 Series Hydraulic Motion Base is a six degree-of-freedom Stewart platform. The six actuators have a stroke of 91.4cm, a bore of 8.9 cm and are equipped with hydrostatic bearings. Power for the system is provided by 3 37.3kW squirrel cage induction motors with matching variable displacement in-line pumps. The measured motion characteristics of the system are:
- Bandwidth (3dB point) of 10Hz
- Bandwidth (90 deg phase) of 5Hz (nominal, can be extended with removal of input filters)
- Dynamic Threshold < 67ms
- Hysteresis < 1mm per actuator
- Motion Envelope
| Degree of Freedom | Displacement (m-deg) | Velocity (approx) | Acceleration (g-deg/s/s) |
| Surge | +0.70m, -0.61m | +-0.7m/s | +-1.2g |
| Sway | +0.59m,-0.59m | +-0.7m/s | +-1.2g |
| Heave | +0.56m,-0.49m | +-0.6m/s | +2g,0g |
| Roll | +21deg,-21deg | +-30deg/s | +-400deg/s/s |
| Pitch | +22deg,-20deg | +-30deg/s | +-400deg/s/s |
| Yaw | +24deg,-24deg | +-30deg/s | +-400deg/s/s |
Graphics by
Art for the web