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Figure 4.1. The Stiffmaster, a continuously operating measuring device for track stiffness.
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Figure 4.2. Schematic of the continuously operating stiffness measuring device.
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Figure 4.3. Schematic of calculating recoverable deflection.
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Figure 4.4. The measuring device’s attachment to the TKA7’s axle on the unsprung mass. A specifically designed mounting adapter is used, attached to the locomotive’s transmission.
Figure 4.5.Calibrating the measuring device with a video camera. For this measurement, the device was calibrated by filming the deflection caused by a heavy axle at a known point in the
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Figure 4.6. Effect of a wide deflection curve on the measurements.
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Figure 4.7. Effect of fishplate joints and a degraded supporting layer on the measuring.
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