High Fidelity Modeling and Simulation of Tracked Elements for Off-Road Applications Using MSC/ADAMS

This paper is based on an independent study which had two goals. First was to apply the principles of dynamics to understand the behavior of complex mechanical systems. Within this theoretical framework, the Automatic Dynamic Analysis of Mechanical Systems (ADAMS) software package was used to make virtual models and accurate simulations of these systems. This part of the project was mainly a learning experience; the only objective was to gain experience with the virtual prototyping process and become proficient with the ADAMS package. Phase two of the study involved applying the modeling and simulation methods learned on a tracked vehicle model (in this case, a hydraulic excavator model). An in-depth description of the modeling process is provided. The goal was to investigate how the response of the model changed when the running conditions and methods of propulsion were varied. Results of the model’s responses are provided, with analysis of the driving torque, forward velocity, bushing shearing stress and the idler tensioning system. The results are followed by a conclusion of the independent study which focuses on the challenges and possibilities that tracked vehicle simulations present.