Investigation of Tri-Axial Stress Sensing and Measuring Technology for Tire-Pavement Contact Surface

Abstract

A tri-axial stress sensor was designed to measure contact stresses in the tire–pavement contact patch. The shape and size of the sensor surface were designed considering both the asphalt pavement texture and the tire pattern. The top-down cracking mechanism was also taken into account, and the sensor was placed at the vertical crack depth. Temperature drifts and zero drifts were compensated for. The sensor had high structural strength and met the sensing requirements of specialized heavy vehicles. In a preliminary study, three sensors were fabricated and calibrated in three directions. Simulated measurements were performed using a tire–pavement surface contact test bench. Signals from the L-shaped sensor region were obtained for the upper, middle, and lower parts of the tire, and preliminary stress distributions were determined at different positions on the contact surface. This study has laid a foundation for the design and construction of a more precise test system in the future.

Measurement of Tire-Pavement Contact Tri-Axial Stress Distribution Based on Sensor Array

“…In practical applications, environmental noise, vibration impact and other factors cause limited use of precision instruments. In the early stage, we designed a sensor to measure the tri-axial stress in the tire-pavement contact area and obtained some preliminary data of sensor performance [31]. In this paper, we improved the structure of the sensor, changed the type of strain gauge, and established a complete real-vehicle test platform, including master systems and subsystems.…”

Nonlinear Modeling of Contact Stress Distribution in Thin Plate Substrates Subjected to Aspect Ratio

“…Therefore, for designing and optimizing mechanical systems, it is crucial to comprehend how contact stress arises and how it can be measured and controlled. Guan investigated the creation of tri-axial stress measuring and sensing technology for tire-pavement contact surfaces [26] and described a cutting-edge method for determining the tri-axial stress distribution at the tire-pavement contact surface using a sensor array [27].…”