Modeling and simulation of driving system for large hydraulic excavator
Dong Zhixin, Quan Long, International conference Fluid Power and Mechatronics (FPM), Beijing, August 2011, pp. 669-674.
Abstract
In the conventional calculation approach, it was low precision for large hydraulic excavator crawler driving system. So, a co-simulation approach should be presented. In this paper, software RecurDyn was used to run the dynamic model of crawler driving system. The mechanical parameters of dynamic simulation were used to establish a data table, which was input to the hydraulic system model that established by the software SimulationX. Results of hydraulic system were obtained after simulation in both forward driving and backward driving working conditions. Comparing the simulation results with theoretical calculation results, it proved that this approach was more accurate and faster operational speed. Thus, it is a more accurate and practical approach for crawler system design of large hydraulic excavator.
How Multibody Dynamics Simulation Technology is Used
Construction-style tracked vehicle dynamics can be quickly modelled using RecurDyn’s Track (LM) toolkit. Individual sections of the system can be easily modified within the model to efficiently improve the design of the tracked vehicle. Simulation times of 30 seconds can be run with reasonable computation time.
