A 3 dimension linear elastic model and a 3 dimension nonlinear elastic model of concrete arch dam are developed considering the dam and its foundation as an interactive system.

In this paper, we use two exponential functions to approximately represent the stress- strain relation of nonlinearly elastic material and analyze strength - difference structure of the space pin-jointed bars.

In the structure, tensile bars are usually made from a nonlinearly elastic high-strengthmaterial.

Finally, the status quo of hysteretic nonlinearity modeling is summarized and the resear.

The investigation of chaotic motion in a vehicle suspension system with hysteretic nonlinearity,which is subjected to quasi-periodic excitation by road surface is presented in the paper.

On the basis of the Dovidenkov′s model, this paper describes the hysteretic nonlinearity of materials.

Then it is considered that there exists parametric uncertainty in the hysteresis nonlinearity in pitch.

For a car including power train,engine cradle,car body,mass without spring and those substructures with linear and nonlinear joints,the scheme of component mode synthesis is employed to model dynamical systems of the car with hysteresis nonlinearity and rigid-elastic coupling.

The dynamical equation of a two-dimensional airfoil with polynomial hysteresis nonlinearity is built in an incompressible flow.