Super element matrix and equivalent load matrix of internal and external tube’s combination is derived from element displacement function,which is combined by differential equation’s solution regarding it as a cantilever column after dealing the tubetype with continuum technique.
Based on the super finite element theory a simplified computation model of construction mechanics toward high-rise tube in tube structure is brought forward and the super-element-minor-structure-coupling finite element method is established.
A super-element approach for structural identification in time domain
A super-element approach is proposed in this study to identify the structural parameters of a large-scale structure in the time domain.
The most interesting feature of the proposed super-element approach is its divide-and-conquer ability, which can be applied to identify large-scale structures using a relatively small number of transducers.
The super-element model used for time domain identification is first discussed in this study.
In order to satisfy the stress singularity at the crack tip a singular super-element based on a modified complementary energy principle is developed.