有限元分析报告报告材料法英文简介.doc

有限元分析报告报告材料法英文简介 有限元分析报告报告材料法英文简介 有限元分析报告报告材料法英文简介 实用标准文案 The finite element analysis Finite element method, the solving area is regarded as made up of many small in the node connected unit (a domain), the model gives the fundamental equation of sharding (sub-domain) approximation solution, due to the unit (a domain) can be divided into various shapes and sizes of different size, so it can well adapt to the complexgeometry,complexmaterialpropertiesand complicatedboundary conditions Finite element model: is it real system idealized mathematicalabstractions.Is composed of some simple shapes of unit, unit connection through the node, and under a certain load. Finite element analysis: is the use of mathematical approximation method for real physical systems (geometry and loading conditions were simulated. And by using simple and interacting elements, namely unit, can use a limited number of unknown variables to approaching infinite unknown quantity of the real system. Linear elastic finite element method is a ideal elastic body as the research object, considering the deformation based on small deformation assumption of. In this kind of problem, the stress and strain of the material is linear relationship, meet the generalized hooke's law; Stress and strain is linear, linear elastic problem boils down to solving linear equations, so only need less computation time. If the efficient method of solving algebraic equations can also help reduce the duration of finite 精彩文档 实用标准文案 element analysis. Linear elastic finite element generally includes linear elastic statics analysisand linear elastic dynamicsanalysis from two aspects. The differencebetweenthe nonlinear problem and linear elastic problems: nonlinear equation is nonlinear, and iteratively solving of general; the nonlinear problem can't use superposition principle; nonlinear problem is not there is always solution, sometimes even no solution. Finite element to solve the nonlinear problem can be divided