Based on the principles of acoustic similarity, the modeling experimentation of three forms of energy dissipaters is conducted.

In this paper,the principle on mechanic similarity and its applications are introduced through examples,the advantage of which lies in that some important conclusions of the mechanic characteristics about a system can be obtained directly without solving of kinematic equations.

On the basis of similarity principle study of the ASP ternary complex flooding, we adopt the method of simplicity, take the foam into differential equation, construct the similarity criterion and the similarity principle of differential conditions, the similarity criterion and the similarity principle are checked and analyzed by numerical simulation and physical simulation method.

Geomechanical model test was a kind of scale rule research method to specific geotechnical engineering problems based on the similarity principle.

Based on the similarity principle,the mechanical characteristics of piles are obtained.

Firstly, a plane-radial-flow physical model which is similar to a group five-plot pattern of actual oil field, was built using similarity theory, then a water displacing oil experiment(unsteady state method) was made indoors to measure the quasi-relative permeability of this plane physical medel,and the output of oil and water in four exports was d.

The steps of analysis by using status equation and block model are showed in details,and the method of simulation after translating mechanical system into electrical net model based on similarity theory is presented.

The similar theory for the beam with all design data to that without data is developed on the basis of corrosion, carbonization and fatigue.

Based on the requirements of strength and permeability of concrete,the authors apply similar theory and orthogonal experiment theory in the experiment on the mixing ratio of porous pervious concrete(PPC) C15 in accordance with the existing laboratory conditions.