Fig 1.
WFT developed at Southeast University (a) and the elastic body of the WFT (b).
Fig 2.
The elastic beam and the deformations.
Case.1 represents the tensile and compressive deformation; Case.2 represents the bending deformation; S1~S4 represent the strain gauges.
Fig 3.
Strain gauge arrangement (a) and the Wheatstone bridge connection mode (b).
The numbers of arrangement accord with that of Wheatstone bridge, representing strain gauges.
Fig 4.
FEM results of inertia load individually.
The symbol (a), (b), (c) and (d) represent inertial load ΔFx, ΔFy, ΔMx and ΔMy respectively. Each inset figure shows the detailed information of deformation.
Table 1.
The strain values under inertia loads.
Fig 5.
Wheel inertia device used for ΔMy testing under angular acceleration.
Fig 6.
Geotechnical centrifuge used for ΔFx and ΔFz tests under linear acceleration.
Fig 7.
Experimental results of inertial load.
The signal outputs of inertial moment ΔMy (a) and that of inertial forces ΔFx and ΔFz (b) are expressed as functions of the accelerations, respectively. Curves are given as polynomial fitting based on original point data.
Fig 8.
The vehicle with the WFT in road test.
Fig 9.
The result of a braking process test.
The longitudinal speed (a), the longitudinal force Fx (b) and the drive moment My (c) as functions of the time, respectively.