Abstract
With modern heavy vehicles using higher inflation pressures and higher axle loads the dynamic measurement of the tire-pavement contact force/stress is essential not only for tire development but also in road research for the investigation of factors which may lead to excessive damage of pavements. In this paper the results of laboratory tests with a prototype stress in motion (SIM) quartz sensor trafficked with a one-third scale load simulator (MMLS3) are presented. The tests were designed to vary parameters such as tire inflation pressure, speed, ambient temperature, lateral position, and angle to direction of travel in a controlled environment in order to isolate the influence of these parameters on the SIM sensor results. All other controllable variables remained constant while the target parameter was varied. Tire inflation pressures were calculated from these data. The laboratory tests show that the prototype sensor promises to be an effective investigative tool for SIM measurements.
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