Research Of Testing Prototype For Road Response Based On Vehicle-road Dynamic Load

The dynamics of vehicle-pavement interaction is a newly developed study field. Although experiment takes an important role in the field of vehicle-roads interactions, it still weak. With the reference of abroad and domestic research, a systematical research method about the dynamics of the vehicle-road has been brought out in this dissertation. The Virtual Prototype Technology has been employed in this research and completed a systematical testing device to be easily actualized for dynamic response of road based on dynamic load of vehicle-road.With the compare of research methods such as direct experiment, indirect method and numerical simulation method, and with the applied background of the Virtual Prototype technology, the paper puts forward a new strategy for the design of the testing device for dynamic response of road based on Pro/E, ADAMS and ANSYS software. On the basis of the theory, this paper analyze the scheme and the important parts, and has proposed that actual modeling parameter, pattern and arrangement scheme, and structured the complete machine scheme of a testing device for testing road dynamic response based on dynamic load of vehicle-road.After confirming the scheme, this paper establishes the three-dimensional entity's model with Pro/E software according to the analysis of parameter and pattern, and assembles parts to integer according to overall arrangement and scheme, structures the parametric feature entity model of the testing device.The machine of the testing device is simplified, and the dynamics equation is built, and modeling and simulation methods in ADAMS are discussed, and the movement of the testing device under running and braking is analyzed. Consequently, the theory basis for the testing device is formed and the feasibility and validity of the testing device is validated.Virtual experiment is devised using the interface of ANSYS and ADAMS. Finite element model of flexible road is exported to ADAMS, and the actual kinetic condition is simulated, then the load document from the simulation is imported to ANSYS software to finite element analyse. Through the compared of the results of virtual experiment and theoretical analyse, the result is validated that the device can simulate the test condition and is provided with the function of dynamic load.