Development of a Novel System for Measuring Soil Stress and Rut Depth Under Off-Road Vehicle Tires

The measurement performance of road vehicle automatic weighing instrument installed on highways is directly related to the safety of roads and bridges. The fuzzy number indicates that the uncertain quantization problem has obvious advantages. By analyzing the factors affecting the metrological performance of the road vehicle automatic weighing instrument, combined with the fuzzy mathematics theory, the weight evaluation model of the dynamic performance evaluation of the road vehicle automatic weighing instrument is proposed. The factors of measurement performance are summarized and calculated, and the comprehensive evaluation standard of the metering performance of the weighing equipment is obtained, so as to realize the quantifiable analysis and evaluation of the metering performance of the dynamic road vehicle automatic weighing instrument in use, and provide data reference for adopting a more scientific measurement supervision method.

Download Full-text

An Enhanced Road Vehicle Positioning Method using Roadside Furniture with Radio Frequency Identity Tags and the EPC Gen2 Standard

2020 14th European Conference on Antennas and Propagation (EuCAP) ◽

10.23919/eucap48036.2020.9136078 ◽

2020 ◽

Author(s):

Zhan Wang ◽

R.M. Edwards

Keyword(s):

Radio Frequency ◽

Road Vehicle ◽

Positioning Method ◽

Vehicle Positioning

Download Full-text

Experimental Study of Flow Control Over a Standard Road Vehicle Using Plasma Actuator

Mechanics and Mechanical Engineering ◽

10.2478/mme-2018-0083 ◽

2020 ◽

Vol 22 (4) ◽

pp. 1047-1060

Author(s):

S. Shadmani ◽

S. M. Mousavi Nainiyan ◽

R. Ghasemiasl ◽

M. Mirzaei ◽

S. G. Pouryoussefi

Keyword(s):

Flow Control ◽

Pressure Distribution ◽

Drag Force ◽

Separated Flow ◽

Plasma Actuator ◽

Road Vehicle ◽

Slant Angle ◽

Total Drag ◽

Slant Surface ◽

Ahmed Body

AbstractAhmed Body is a standard and simplified shape of a road vehicle that's rear part has an important role in flow structure and it's drag force. In this paper flow control around the Ahmed body with the rear slant angle of 25° studied by using the plasma actuator system situated in middle of the rear slant surface. Experiments conducted in a wind tunnel in two free stream velocities of U = 10m/s and U = 20m/s using steady and unsteady excitations. Pressure distribution and total drag force were measured and smoke flow visualization carried out in this study. The results showed that at U = 10m/s using plasma actuator suppress the separated flow over the rear slant slightly and be effective on pressure distribution. Also, total drag force reduces in steady and unsteady excitations for 3.65% and 2.44%, respectively. At U = 20m/s, using plasma actuator had no serious effect on the pressure distribution and total drag force.

Download Full-text