Taking the structure s type as a controlled variation, and considering demands of stability, safety and economy, a self-controlled model of an elastic static structure was established, and a numerical solution was obtained by optimization and discreteness.

The propagation characteristics of shear waves in an artificial composite and fissured fine sandstone which have the known elastic structures have been observed by taking shear-vibrated ultrasonic transducers as the transmitter and receiver in laboratory.

In order to deal with the vibroacoustic and sound radiation problems of elastic structures immerged in water, the interface software between ANSYS V 5.

In this paper, Hamiltonian system is established for the problem of the coupling vibration of elastic structures in rotating systems.

Generally,when the Ma number is low,the hydrodynamic noise is mainly radiated by vibrating elastic structures excited by wall-pressure fluctuations beneath turbulent boundary layers(TBL).

A theory and a corresponding numerical technique to deal with the coupled interactions between the liquid sloshing and the elastic structures are presented.

The fundamental solution of Kelvin s problem irrelative to time is used as the weighted residual function of boundary element method to solve the dynamic response of elastic structures in this paper.

The outer loads calculation essentially is a multidiscipline problem, because construction elasticity, inertia effective, flight control law influence and airflow separation etc.

On construction technology of static steel structure;