Research on Dynamic Modelling and Simulation of Erection System of Mobile Equipment in Absolute Coordinates

Abstract:

This paper employed the theories of multibody system dynamics to analyze the multi-rigid-body model of erection system and build the general dynamic models in absolute coordinates. The impact theory of contact mechanics and nonlinear spring-damper force function were used to model the impact problems between rods of multi-stage hydraulic cylinder of erection system and educe the dynamic models of multi-rigid-body erection system with impact. An automatic violation correction method according to the step of integration time was given to solve the violation which is an incident problem in numerical integration of dynamic models in absolute coordinates. Simulation results show that these dynamic models are effective.

• Periodical: Applied Mechanics and Materials (Volumes 66-68)
• Pages: 2034-2040
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.66-68.2034
• Online since: July 2011
• Authors: Qin He Gao, Xiang Yang Li
• Keywords: Absolute Coordinates, Erection System, Impact, Multibody System Dynamics, Violation Correction

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