Research about slider nonlinear contact analysis of the telescopic boom with cylinder supporting

Abstract

How to simulate the actual contact situation between the telescopic boom and slider has been the problem urgently to be solved for crane industry because of the complicated nonlinear contact. Took the new large tonnage railway crane as the research object, with the help of the international advanced nonlinear finite element analysis software ABAQUS, cylinder model was established, hinged relationship between the cylinder and telescopic boom was built by defining coupling constraints and connectors, sliding friction was took into account, and the contact mechanics model was successfully acquired convergence after 103 times iterative calculation eventually. Contact stress response of the contact region was ascertained during the process of sliding contact with cylinder supporting which has filled the blank of the slider nonlinear contact analysis.