Research Of Paving Compaction System Of The Bitumen Pavement Thermal Regeneration Maintenance Vehicle

This paper is from Chang’an university of the road construction technology andequipment education key laboratory open funded projects(2013G1502053), Jiangsu"Innovation entrepreneurial talent plan" and Yangzhou "Green Yang Jinfeng plan" in2012. Thebitumen pavement thermal regeneration maintenance vehicle is one of the mostimportant type of model of asphalt pavement maintenance machinery, which is setheating, scarifying, recycling, mixing, paving and compaction curing process for theintegration of one-time continuous, efficient, high quality construction workmaintenance machinery. The bitumen pavement thermal regeneration maintenancevehicle of core institution is the paving compaction system, whose performance stand orfall directly affects the final maintenance quality of asphalt pavement. So, studying thebitumen pavement thermal regeneration maintenance vehicle of paving compactionsystem are not only of great academic significance in science, but also of largeeconomic value in the aspect of pavement maintenance engineering machineryapplication.In this paper, research work mainly include the following:1. In order to study the feasibility and the stability of paving compaction system ofthe bitumen pavement thermal regeneration maintenance vehicle, on the basis of thecontinuous vibration coupling mechanism, the "pavement-ironing-compaction"mul-DOF continuous vibration paving compaction system dynamical model and thestate space model were built by using the interdisciplinary theoretical knowledge ofvibration, kinematics and dynamics, the key parameters of the system influence on workresponses of screed and compacting wheel was analyzed by MATLAB, and the naturalvibration frequency from vertical and horizontal was studied, the simulation analysisresults was verified by the correctness of model.2. In order to study the working performance of continuous vibrating mechanism,on the basis of the working principle of the hydraulic system of the continuous vibrationmechanism, the simulation model of the double pump-double motor continuousvibratory paving compaction hydraulic variable frequency system was established byusing the interdisciplinary theoretical knowledge of hydraulic transmission and traditionPID control, which was simulated and analyzed by AMESim, the results were verifiedby the feasibility and the stability of the double pump-double motor continuous vibratory paving compaction hydraulic variable frequency system in vibratoryfrequencies, and showed that the performances of the existing system were effectivelyimproved and the continuous vibration frequency of the infinite adjust was realized byincreasing the traditional PID control and the accumulator, but the responseperformance of control of the whole system needed to be improved.3. In order to better control the response performance of continuous vibratingmechanism to get a better road paving compaction quality, the continuous vibratoryfrequency real-time tracking and control were further researched, on the basis of thecontinuous vibratory frequency real-time tracking and control of the principle andsignificance, an adaptive dynamic sliding mode controller was designed by using theinterdisciplinary theoretical knowledge of self-adaptive control and dynamic slidingmode control, the stability of the controller was verified in theory, and traditional PIDcontrol and designed adaptive dynamic sliding mode control were simulated andanalyzed, comparison results showed that the overall performance of the system controlhad been great improved, the overshoot and steady state response time were effectivelycontrolled, and the uncertainty and disturbance of parameters variation were betterinhibited by the designed adaptive dynamic sliding mode controller, which has goodspeed/frequency adaptive dynamic control response performances to realize thereal-time tracking and control of the paving compaction continuous vibratory motorspeed/frequency.