The Simulation And Research On New-typed Uninterrupted Compactor Mechanism

Dynamic compaction, with its advantages such as effect evidently, good adaptability, simple and convenient in constructions, has been widely used in foundation treatment for large buildings such as rubble underlying deep mud, reclaim land from the sea and so on. Currently dynamic compactor often use the release mechanism to work, however, release mechanism needs reset and hold hammer after every compacting, which induce the lower efficiency,the bad conditions of labor and the lower construction safety. Uninterrupted compacting can enhance the efficiency and safety of compaction, and also have great significance in engineering.In abroad, using crawler crane instead of the special dynamic compactor mechanism in lower power compacting through improving the braking system of winch to achieve the steel wire rope to fall freely with the hammer. The method has high-efficiency in compact working. Using this construction method not only cost expensively, but also can not satisfy the custom's desire of the reliability and the service life of the winch and wire rope.In this paper, we designed a new mechanism based on TRIZ which can instead of the release mechanism and winch. The mechanism driven and controlled by hydraulics system can take the hammer hoisting and uninterrupted compacting.For validating the feasibility of the designed project, we apply these software included ADAMS for dynamic simulation, Pro/E for three- dimensional design and ANSYS for finite element analysis. We build the virtual prototyping model of this uninterrupted compactor mechanism, and improve the model of pulley block in ADAMS/View module and also build the hydraulic system in ADAMS/Hydraulics module. The dynamic simulation of the uninterrupted compactor mechanism system is accomplished in the falling condition of the hammer.By analyzing the displacement and acceleration of key components, the hydraulic pressure and flowrate of key components in hydraulic system, the simulation results validate the mechanism system's dynamic characteristics satisfied the design requirement, and lay the foundation of working design, optimization design and Hydraulic manifold block design.