Technical information

5-32
Quantitatively, the matching errors in these figures were almost consistently lower than
those in Figures 4.3.6 to 4.3.10. This is shown in Table 5.2.2, which lists the
improvement in predictive power (in percent) of the viscoelastic model over the
isotropic elastic case (as given in Table 4.3.2). As can be seen, the improvement ranged
between 0.9% to 71.7% with an overall average of 27.8%; only a single negative
(worsening) case was obtained (1S axle, ATC gauge).
Table 5.2.2: Relative improvement in response predictions for the isotropic LVT
compared to the isotropic LET case given in Table 4.3.2.
Gauge
NCAT truck axle designation from Table 2.1.1
1S 1D+2D 1T 3T 5T
BLC 39.9% 47.6% 49.3% 46.3% 20.5%
BLR 21.2% 9.9% 7.5% 19.8% 21.2%
BTC 64.6% 3.9% 6.8% 42.7% 49.0%
BTL 26.4% 71.7% 67.5% 27.2% 0.9%
ATC -28.0% 2.6% 5.0% 41.9% 51.4%
ALC 29.0% 42.3% 52.0% 32.7% 41.0%
ALR 15.5% 11.8% 5.0% 7.8% 18.3%