| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of analyzing elastic deformation of a member of an automobile having a pipe-made torsion beam whose one part is in contact with the other in cross sectional view, with high convergency (accuracy) and low calculation costs. <P>SOLUTION: The plurality of subsections of a member are classified into n regions A<SB>i</SB>(i: 1 to n), and elastic deformation δ is divided into m amounts Δ<SB>j</SB>(j: 1 to m). A region A1 is defined as a non-constraint region or a constraint region based on actual physical boundary conditions, and the rest is defined as a complete region or a virtual constraint region whose degree of freedom is lower than that of the region A1, sequentially from j=1 to j=m. The amount of deformation to be input to the member is defined as Δ<SB>j</SB>, and a finite element method is applied to the non-constraint region, to analyze the overall deformation state of the member. Then, the virtual constraint of the region A<SB>i</SB>is released, and the non-constraint region or the constraint region based on the actual physical boundary conditions is enlarged sequentially from i=2 to i=n, and the finite element method is applied, to analyze the overall deformation state of the member. The processes are repeated. <P>COPYRIGHT: (C)2011,JPO&INPIT |
