Study On Flexibility Starting Technology Of High Frequency Vibration Roller

Compared with ordinary double-drum vibratory roller, the high frequency vibratoryroller has been designed higher frequency and faster running speed. The rational parametersallocation of high-frequency vibratory roller makes the machine can not only meet the thicklayer of compacted material, and also can guarantee the thin surface layer compaction, and thesurface compaction of bridge. Therefore, the service effect and development prospects of highfrequency vibratory roller at home and abroad are very good.Through testing and analysis of the experimental prototype data, it has been found that,due to the vibration frequency improved, the dynamic load has been obviously increased. Sothe dynamic performance of high-frequency models have higher requirements：that means,meeting the operational requirements of running and vibrating, the inertia load of the driveand vibration system should be inhibited. As far as possible to reduce the hydraulic shock inthe dynamic process, and prolong the service life of elements, in order to improve theefficiency of the system, aiming at ensuring the stable and efficient operation of the wholesystem during the entire working process. Therefore, study on the flexibilitystarting-flexibility stopping technology which is suitable for high frequency models is of greatvaluable.By theoretical analysis of hydraulic system of high frequency machine, it has researchedthe hydraulic shock、the inertial load and power consumption during the dynamic processes invarious working conditions of the high frequency vibratory roller, based on the testing resultsof the prototype. By means of theoretical analysis and experimental data, the simulationmodel are been established in ADAMS and AMESim simulation software. Using thesimulation model, the practice effects of the flexibility starting-flexibility stopping technologyhave been analyzed and verified, then put forward how to further improve the applicationeffects about this technology.The study method includes of theoretical analysis, testing verification and simulationanalysis. Through data analysis and simulation analysis, it shows that the key of matchinghydraulic system of high frequency vibratory roller is how to match drive system and vibration system reasonably, while how to matching of walking and vibration system well ismainly considered to meet the dynamic process of peak load demand, as well as improvingthe efficiency of the system during the stable output process. The whole machine dynamicperformance has been analyzed from the aspects of power, pressure and speed matching. Thencome up with the flexibility starting-flexibility stopping technology which could not reducethe power consumption of the travel and vibration system respectively, but also can inhibit theoverall consumption. Vibration system as the main energy consumption system of highfrequency models, the dynamic characteristics should be controlled, but also need to considerthe cooperation with travel system in vibration compaction, aiming at make the dynamictransition time as short as possible, at the same time, ensure the dynamic characteristics good,even guarantee the stable output efficiency high and economic. Finally, it proved thatflexibility starting-flexibility stopping technology for high frequency machine performanceimproving is of far-reaching significance.