运动中的车辆荷载测量对路面平整度的要求

运动中的车辆荷载测量系统ＷＩＭ是安装于路面上用于测量行驶中车辆荷载，并以此估计车辆静荷载的一种系统。通过模拟计算给出了不同路面平整度状况和不同车速条件下，运载与静载之间的可能偏差或车辆振动对荷载测量的影响。

The pavement roughness requirement for WIM

The accuracy of any WIM(Weigh - in - Motion) measurement which is set up on the pavement for measuring the vehicles' dynamic loads is affected by vehicle dynamics. The load measured by a WIM sensor is only one point in the time - varying dynamic load. The difference between the dynamic and the static loads depends on the load position on the pavement, pavement roughness, the vehicle speed and configuration. A simulation of the dynamic wheel load was made for Weigh - in - Motion. The requirement for the pavement roughness condition for WIM purposes was found to depend on the required tolerances of the load estimated by the WIM system and the vehicle speed. The possible deviations of the dynamic loads from the reference static load under different vehicle speeds and pavement roughness have been obtained from the simulation results.