Superelement Method Based Structure Simulation of Large Pallet Structure

Abstract

Based on its elemental idea, superelement method was introduced to structure simulation of large frame pallet. With superelement method, dynamic analysis uses superelement degree of freedom, and characteristics of mechanics, geometry, material and position information of each component will be considered in calculation. Through an analyzing example, solving results with two different methods were compared. Superelement method can reduce element number and save solving time greatly, and two analysis methods have almost same former modes. Natural frequency (period) and side displacement of top end are key indexes in dynamic analysis of large pallet, analyzing result shows difference with two solving method is very small. Compared with normal FEM, superelement method can save a great deal of solving resource and ensure output results accurate and effective.