A Study of the Key Problem in the Application of Superelement

The finite element method was applied to model the complex suspension chassis and the component mode synthesis superelement theory was applied to reduce the dimension of the chassis dynamic model.

Every min closed region is regarded as a superelement and every superelement is changed into a ruled square under the local coordinate system by double linear interpolation.

A super-element approach to structural identification in time domain;

Aiming at this problem,by the coordinate transformation of shape function the idea of super-element is adopted to divide grid with the programming of Fortran language.

According to the theory of the consanguinity of magma and the evolution order,the multiple granite in Pingdeng can be devided into six units,whic incorporated into a super-unit.

Weiya composite stocks comprise a circular body including Weiya super-unit (outer circle) and Huanxinshan super-unit (inner circle).

And together they form the Haiyangshan super-unit.

A research into lithodemic unit of the Shimian composite granite mass indicates that according to contact and lithogenetic sequence,8 units (which are incorporated into 3 superunits and 1 superunit assemblage)may be established They form an evolutionary serie

n the course of 1: 50000 regionad geology surveg,the author has divided to the famous zhuizishan composite plutonic complex using the theory and method of lithodemic and creating the Huangtu ran superunit,Nandatian supernit,Jiaojiagou superunit and weichang superunit.

From the viewpoint of comagmatic evolution and using the method of lithodemic division, the Jingning granite batholith is divided into nine units, which are incorporated into two super units.

Basing on the study about the unit-superunits of granites, the authors divide the member of Laiyuan-Badaling batholith, discuss the main characteristics of the unit-superunits, and point out that this member of .