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Apply real or simulated rail car forces and moments to assembled bogies and complete rail cars to measure stiffness, moments of inertia and damping with exceptional precision and accuracy. The broad range of data generated by this high capacity, multi-purpose performance measurement system enables manufacturers to improve the reliability of advanced computer models.
Incorporates advanced sensors and instrumentation mounted directly at the specimen interface for extremely precise measurements of these complex mechanisms
Multipurpose system combines characterization, durability and vibration testing capabilities to addresses a very wide application range, including components, subsystems, assembled bogies and complete vehicles
Improves the accuracy and reliability of advanced computer models used to optimize bogie and rail car speed, stability, comfort, and efficiency
Static support system reduces hydraulic oil flow needs during dynamic operation
For each bogie, there are two axle/wheelset 6DOF excitation tables with 6DOF load cells mounted in line with the wheel platform.
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Force Capacity |
Displacement |
|
Vertical |
800 kN |
+/– 100 mm |
|
Lateral |
400 kN |
+/– 114 mm |
|
Longitudinal |
400 kN |
+/– 85 mm |
|
Pitch single table |
600 kN-m |
+/– 5.7 deg |
|
Net pitch dual tables 1700 mm |
2040 kN-m |
+/– 5.7 deg |
|
Net pitch dual tables 3000 mm |
3600 kN-m |
+/– 3.0 deg |
|
Roll |
360 kN-m |
+/– 8 deg |
|
Yaw single table |
400 kN-m |
+/– 8 deg |
|
Net yaw dual tables 1700 mm |
510 kN-m |
+/– 6.5 deg |
|
Net yaw dual tables 3000 mm |
900 kN-m |
+/– 5.0 deg |
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Units |
2-ton Payload |
33-ton Payload |
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Acceleration |
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Vertical |
g |
10 |
1.7 |
|
Horizontal |
g |
5 |
1 |
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Velocity |
|
|
|
|
Vertical |
mm/s |
750 |
750 |
|
Lateral |
mm/s |
400 |
400 |
|
Longitudinal |
mm/s |
750 |
750 |
| Units | Fx | Fy | Fz | Mx | My | Mz |
Capacity | N or N-m | 140000 | 140000 | 255000 | 60000 | 120000 | 30000 |
FS Calibrated Range | N or N-m | +/- 140000 | +/- 140000 | 255000 | +/-35500 | +/-35500 | +/-30000 |
Loaded Axis Accuracy (1) | %FS Cal | 0.30 | 0.30 | 0.30 | 0.50 | 0.50 | 0.50 |
Span Shift (2) | % RDG | 0.2 | 0.2 | 0.2 | 0.4 | 0.4 | 0.4 |
Non-linearity (3) | %FS Cal | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
Hysteresis (4) | %FS Cal | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
Non-Repeatability | %FS Cal | 0.05 | 0.05 | 0.05 | 0.2 | 0.2 | 0.2 |
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Cross-talk on Unloaded Axes (5) | %FS Cal |
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Applied Load | Fx | N/A | 0.25 | 0.5 | 1 | 1 | 1 |
Fy | 0.25 | N/A | 0.5 | 1 | 1 | 1 | |
Fz | 0.5 | 0.5 | N/A | 1 | 1 | 0.5 | |
Mx | 1 | 1 | 1 | N/A | 1 | 1 | |
My | 1 | 1 | 1 |
| N/A | 1 | |
Mz | 1 | 1 | 1 | 1 | 1 | N/A |
Note: These numbers are typical results of the full calibration of the sensors. They are not guaranteed specifications, but are to be used for uncertainty analyses, with appropriate use of coverage factors as needed. Errors may be higher than specified for moment loads above calibrated range
The 4DOF active loading/reaction frame simulates car body motion and load to the bogie, or it can be used as a fixed reaction for primary and secondary suspension tests.
Motion Capabilities:
