2008•Journal of Beijing Technology and Business UniversityRequires access

FINITE ELEMENT ANALYSIS AND LIGHTWEIGHT DESIGN BASED ON COUPLING THEORY OF SHELL AND BEAM ELEMENT

Xiang Niu

Abstract

Finite element model was built by shell and beam element based on beam element,and stiff matrix of shell and beam element boundary was deduced.Using general finite element analysis software ANSYS on compressed natural gas city bus to build a finite element model,stress and deformation of the model was calculated in bending,torsion,turning,braking condition.According to the results,a program to reduce vehicle weight and structural optimization on stress concentrated points was put forward,then using ANSYS to calculate the improved model.Calculation results show that improvement program feasible.

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Key concepts: Finite element method, Structural engineering, Beam (structure), Torsion (gastropod), Mixed finite element method, Finite element limit analysis, Extended finite element method, Shell (structure)