One of the key issues in structural and geotechnical engineering is that most parts buildings are usually analysed separately then outputs used foundation designs. In this process, some effects neglected. study, soil–structure interaction (SSI) foundations concrete was evaluated using direct finite element method (DFEM). 3D models were developed to analyse with different stories constructed on ...

in this paper, the operation of helix traveling wave tube in interaction region is investigated by using a three dimensional large signal lagrangian model in frequency domain. the complete simulation of these tubes is essential for optimum design and minimum manufacturing cost. this 3d code can compute interception current (or current losses ), beam radius changes in interaction region and the ...

In evaluating ultimate limit states for design, time-domain aeroelastic response simulations are typically carried out to establish extreme loads on offshore wind turbines. Accurate load prediction depends on proper modeling of the wind turbulence and the wave stochastic processes as well as of the turbine, the support structure, and the foundation. One method for modeling the support structure...